Brupeg's Engine Dyno Test - Full power on Vege oil - Project Brupeg Ep.294
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- เผยแพร่เมื่อ 17 ก.ย. 2024
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Finally our newly rebuilt main engine is ready to go on the DYNO! We even had the opportunity to test it on vegetable oil!
Have a look and see how it went... we were able to measure things like fuel burn rates at cruise and full power for both fuels as well as all engine parameters like exhaust gas temp, horsepower, torque etc. Dame and Duncan were very responsible playing with the big engine, making the big engine noises, although Damien just realised he never touched the throttle once. This is the motor generously funded by our go-fund-me and patreons that we will be craned into Brupeg in the next month (all going according to plan)! Thank you everyone who donated and made this possible!
We hope you enjoy the soft dolcet sound of a 14 litre 6 cylinder diesel engine at full noise as much as we did.
Cheers
Jess, Dame, Birk and Duncan
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My 7.3 powerstroke that ran over 100,000 miles on straight veg had a coolant loop in the tank to maintain veg oil temp in the veg tank. Also a custom coolant jacketed fuel filter as well as insulated veg lines. Started on diesel, switched at 160 F degrees. Switched back to diesel before shutdown.
Jon that sounds almost identical to the system we are designing. Issue we have is our coolant only gets to 78c at cruise and 82c at full throttle. We need to lift the oil another 20c on top of that so we are thinking about exhaust heat or lube oil heat scavenging to bump it up high enough
@@ProjectBrupeg
Yes, true that a diesel in a truck creates more heat with acceleration where as a constant speed diesel like boat and heavy equipment engines might not.
I met a lot of veggie drivers at an event we held annually called Greasestock. There were some that used supplemental inline electric heaters and one guy that used exhaust gasses to capture heat. Love the channel btw.
@@ProjectBrupeg Arctic weather heat exchanger. They look like a muffler, but they're a stainless steel plate sandwiched between two "boxes". On one side you have exhaust gasses, on the other you have the fuel. I've no clue who makes them, i know they exist because i was talking with our expedition mechanic, being curious about what exactly do they do to their trucks in such weather so the fuel doesn't reach the engine cold.
Running on diesel before shutting down sounds like a good idea, otherwise the veg oil may gum up the injectors .
Kudos to Carl also and old faithful Duncan, the master blaster
The ice cream guy in my neighbourhood [Yorkshire, north of England] runs his van on recycled cooking oil. It's quite confusing: his bing-bong🎵chimes say "Ice cream!", but his van's exhaust says, "Fish and chips!" 😁
It really smells like McD fryer from the exhaust? That's hilarious!
Seeing the engine running makes me happy for the very small amount I was able to donate to it's creation. It's awesome that so many folks came together to make this very nice engine happen for Brupeg.
Jess and Damien, a couple so bold,
Set out on a mission, a tale to be told.
Brupeg, a sunken trawler, they found,
A diamond in the rough, in waters profound.
With love in their hearts, they toiled away,
Sweating and working, day after day.
Damien's welding, his passion so bright,
Creating a new boat, bringing it to light.
Jess, with her spirit, so full of life,
A partner in every moment, in every strife.
Together they worked, side by side,
Bringing Brupeg back to life, with pride.
The boat transformed, a vision so clear,
A research vessel, for all to cheer.
The oceans so vast, now open to all,
A voyage of discovery, no longer a crawl.
With Brupeg's sails, they journey afar,
To the edge of the world, with no fear or bar.
Jess and Damien, with hearts so true,
A testament to love, to dreams that come true.
Nothing like running veg oil and the feeling its awesome to stick the finger up at the RIP OFF service stations on the way past running free veg oil and it feels better in the engine.
I ran my 1HZ Toyota Coaster engine on veg oil, did the Murray Darling river system Australia last year, 3000 kilometer trip on the first go on 100% SVO, twin tank, filtered 20,10 micron. It had two heat exchangers in vehicle a 60 plate coolant heat exchange and a another one right before the IP. Heated boiled the oil over night in a drum campfire (it got REAL hot) from fish chip shops before filtering and putting in vehicle tank, started on cold svo stopped cold veg oil (this was probably a big mistake). I though oh it ran so good it doesn't need to start on diesel and stop on diesel.
After the 3000 kilometer trip the brand new injection pump was filled with brown rusty looking sticky stuff, anything the stuff touched that was steel or metal was like that esp in the steel original tank, the other plastic tank was good and clean, plastic for everything is the go or stainless steel, the vain pump was that stuck with it, the vain wouldn't come out so it wasn't pumping any more veg oil up. I broke down roadside and didn't go again. Took the pump off and rebuilt it myself and it running again on diesel as of now. Nightmare.
Everything ran perfect for miles and miles on end until last few weeks it started to get rough. It seems all good but it slowly builds up junk in the injector pump and the injector tips were stuffed. Caked with black crap. It ran clear in the exhaust clear as a bell from 1 second after starting with a little puff black smoke to enitially start.
I see you're setting up a vacuum pump old LPG filtering system and i watched the video and I'm currently building one (small scale) out of a LPG 45KG big bottle system as i was looking for answers how i can fix this situation. You may be eliminating the possible problems i had by doing this!!! Getting the Dissolved Water, Emulsified Water and the Free Water completely out is critical imo.
Couple of things i learned and rules I'm putting in place for myself to always follow:
1). Heat oil 80-100C and cycle and filter in a 44 gallon drum and fanning the air to atmosphere and have a air fan blow it and filter to 1 micron a few times not just once. Maybe go through the filter cycling when its cooler to as too hot ruins filters. Cycle it as its cooling below 80C.
2). Put the oil in a vacuum and dehydrate water out. Just heating boiling does not get it all out.
2). Always do the basic crackle pan test oil before going in tank.
3). Always start on diesel get well hot and purge well on diesel.
Will be interesting to see a video of the running filtration system you eventually settle into place. Its hard travelling as the stuff gets stirred up all the time in 44 gallon drums. I will probably to process 44 gallon drums on land at camp sites when stopping a few days to a week and using camp fires to heat and process the oil. Its easier if at home just settle the stuff for years in IBC 100 ltr containers and have heap of em and this is the stories you often hear most of ppl doing it.
All the best thanks for the detailed video. The LPG design I've come up with will screw into any top 3/4" female fitting in the top of existing old LPG tanks and no welding or cutting into the existing tank and use a dairy vacuum or might use a old AC system yet still building it as i post. I will have a video on it on my channel when its finished and running.
Look up Oil Burner TH-cam channel he has a good system worked out and simple and old school. I'm currently building the old small block chevy pump as as wvo pump as, one, it will handle volumes and two can handle the heat and constant RPM to move oil solid all day long and does cost a fortune.
Carl, I'd like to shake your hand. Way to treat people. Absolutely fabulous Sir.
You are going to be SO much safer out at sea with a freshly rebuilt and tested engine! I am really happy that this has worked out so well for you. You deserve this success.
Enjoyed the engine testing on the Dino. What was interesting was when you and Duncan were at his house, I noticed the background brickwork which was so well done with a scratch joint. The bed and head joints were so uniform to the point of screaming that the person who laid those bricks was a master craftsman. It seems the Aussies have master craftsmen on the mechanical, electrical and masonry side. What a country and then you have wonderful people like Jess and Damon who are spot on nice and great and interesting and funny and so on and so on ( ok I know I used to many ands but hey, I’m a former bricklayer ). This is such an amazing channel - Jess and Damon have some of the best friends in the world ( well all over the world ).
Psst. They’re kiwis! 😉. (From an expat Aussie living in New Zealand : )
@@robinhodgkinson Thanks for your information and I should have known but the Dino testing revved up my mind to the point it made my fingers type the wrong facts. Kiwis they are and kiwis they will always be. It seems it’s the kiwis who make the world go around.
@@simsjef lol. Yeah, kiwis are a good bunch. Just like an Aussie, only better! (According to my kiwi mates). 😂
Engine seems to run beautifully👍One penguin to another: ‘I’m sure I can smell chips?’ (Sorry, couldn’t resist…)
There is a reason that you were able to rebuild an engine like that after all the years it has ran, it says alot about the quality and longevity of a new engine, some people learn the hard way some people don't, a lot is based on how well you acquire decision making skills throughout your life, me ! im just stupid see, for 4 k more i would have bought the new engine with a reputable company like that, engine sounds pretty good 👌
I can't believe the effort some put into restoring boats, this project is so mammoth just thinking about it does my head in. You must be in the less than 1% of humanity, because the effort is so immense mere mortals like me cannot even begin to comprehend it. Nothing but awe and massive respect. btw that engine sounds lovely
Thanks very much
There is a guy in Canada, who has a 4-53 GM custom fitted to a Ford F-350. He is running veg oil, and found that water/methanol injection keeps carbon from clogging his injector nozzles and piston rings. I ran the NTC-855 Cummins in road trains during the 1980's and 1990's..........the Formula 350 is the best. Keep the revs at or below 1800rpm.......they dont like high revs. ALWAYS keep Cummins DCA or pre mix coolant in the cooling system otherwise electrolysis will eat the liners out. The NTC-855 can be very reliable, provided it gets a quality rebuild.........line bore the block,new head bolts,mains bolts, conrod bolts.......no short cuts. The CPL also denotes the fuel pump setup. The NTC-855 had a small cam version and a "Big Cam" version, the latter being better (less cam wear). Turbo's have improved enormously since the Big Cam "4" came out in mid 1980's. Ceramic coated exhaust manifolds and turbine blankets also make a difference to turbo spool and efficiency. Really interesting info you have on veg oil temp and performance relationship. Thanks ))
I love the high- tech shopping trolly exhaust system
Damien you and Miss Jess are a funny set of Kiwis. You use the metric system for everything but that Cummings engine. It's a 14 liter engine. 😅😅😅😊
And the US Military has been running engines on all kinds of oil for years. Diesel , motor oil and many more. 😊 Kathryn and I gave to the gofundme using PayPal. Glad to see it running strong on the test/dyno stand. I have one of my Cummings liner converted into a small forge.😊
Thanks Michael. It is an odd thing I was never taught the imperial measurement system but picked it up when rebuilding engines for a living when I was 18. We hugely appreciate your generosity and it’s been an honour having so many people back this engine. Thank you from the bottom of our hearts.
This video did not disappoint. So good to see it purring away on the Dyno. Really interesting to get the hard data on the two fuels. Awesome what Carl did to take the engine to the top end of the spec. Can't wait to see it in Brupeg.
Wow, she runs great on the diesel. She purrs.
Look into using a heat exchanger line between the oil tank and engine block with the hot coolant out line jacketing the oil feed to the injectors. I've see the veg oil guys in colder climates use them with good results. Also, a stainless electric heating element and a PID controller would help heat up quicker and maintain optimal oil tank temps.
What about using the heat from the gearbox?
@@thatdave86 Since its going in a boat I don't think the gear oil will have a need to be cooled. without enough excess heat it wont be able to heat the veg oil up to the necessary temp to fuel the engine cleanly.
It’s episodes like this I come to view. Great info. My brother was a diesel fitter on the Sunshine Coast who excelled at engine rebuilds. Sadly Stan is no longer with us and this episode bought back many happy memories of hanging around Stan in his workshop watching him and his vast knowledge of all things. Your guy reminded me very much of Stan. Thanks. 👍❤. PS called into Bundy back in January to check out the yard. Saw you at work. Didn’t need to bother you. Just happy to have been there.
Water brake. It uses the water in shear to apply load to the engine. The water shearing is what generates the heat.
awsome episode. full props to carl, top customer care and pride in his work.
That first start up was so sweet.
Great lesson: "Satisfaction occurs when your customer receives something they value, but didn't expect."
There is no doubt karl knows these engines. The turbo is a apart of the cpl list of performance parts, a garret turbo on a cummins is not keeping with the cpl listing, I'm glad it was changed.
As far as a new engine v the rebuild, the issue you have is that cpl 700 is non certified where as the new NTA is IMO 2.
Your old engine was a CAT So you are repowering. If this vessel is going to be registered under AMSA then you are going to have to meet IMO rules. The rules state that other than an identical like for like replacement, you need to install an IMO tier 2 engine.
Even pleasure boats now have to meet these rules. Hope you get around this as karl has done an excellent job. The testing with the different fuel was very interesting and quite well done.
What a great job Carl has made on this rebuild.
Brupeg is one lucky boat getting this installed.
Hope your doing ok Jess and keeping as well as possible.
Take care great video as usual guy’s.
20 odd years ago we used to run my wife's old manual pump Volkswagen on veggie oil (whichever was cheapest) straight from the supermarket, sometimes 100% veggie sometimes mixed with whatever diesel was in the tank, never had a problem other than the smell. So many people were doing this that at one point there was a 4 litre/person limit at the supermarket.
Congrats on getting your engine and having a professional get you the best out of it for your purpose. Glad to see it!
You can install a oil heater on the vg oil line as close as possible of the engine fuel injection pump. That will keep the oil temp at the optimum value all the time and will allow to a faster transition from diesel to vg. Keep up the good work...
I remember back to my first sight of the Brupeg engine room and being quite impressed by the appearance of the freshly painted Cummins. That was before I saw the new engine in the all - together! Quite an erotic spectacle eh what chaps?!🙃 In short, I think that beautiful lump of raw materials is just fantastic the way it is! I would like for us to have some kind of poll of the rank and file about the pros vs cons of painting the donk! Of course there's always the option of a spot of chrome plating here and there! 🤗
This video made me very proud that I contributed a little bit to your magnificent motor. Thank you for showing us "our" motor running!
Thanks again Nick!
Enjoyed the Dyno Testing and nice to see you included this step with the Veggie Oil, before "setting sail" for distant ports.
carl.. your the man .
Damian that has a wonderful lope at Idle and in all it sounds great .I'm a diesel engine technician and have worked on Cummings over 35yrs as well other manufacturers. Cummings run low oil pressure but high volume I believe you need use a different oil supply pump operated by auxiliary device to maintain oil pressure and volume to internals, 1000 rpm is not enough rpm to reach full oil pressure and volume, especially when it is working under load. When oil get warm pressure drops also.I was just thinking this is not a piece of equipment on land and you guy's are very smart ,I don't know anything about building a boat or navigation but one can say I know a thing or two about engines.
Cheers from 🇨🇦
And that's the difference between a damn good mechanic and an engine manufacturer.
So the word you are looking for when describing the exhaust is "opacity". When the check us for emissions ghey actually hold a chart up to our trucks pipe that has gray scales on it and depending on how much smoke or "opacity" tells them if we are fit for environmental emissions.
I sure love the sound of a sweet diesel engine. That last clip just reminds me of a diesel locomotive. I love my Cats but a Cummins or a Detroit is music to my ears. Oh and u can't forget my soft spot for the old Gardner that hot us out to sea and back on the fish boats. I think I've spent more than half of my soon to be 60 years listening to a diesel between fish boats, semi's and farm tractors.
Another thing about diesel engines that might be a bit surprising to petrol heads (including meself) is how RPM, throttle and torque is related in petrol vs diesel.
In a petrol (or any other combustion fuel) engine you always target a very specific stoichiometry, so the power you can get out of the engine is directly proportional to the volume of air you stuff into it, which again more or less means RPM (with the slight variation of the turbo), and you can't just increase the boost/compression since then the fuel will pre-detonate/ignite (=quick way to have an unscheduled disassembly of your engine), so to get more power => put in more air, and a given RPM results in a (semi) fixed power/torque. This is why they have (or used to have) throttle body that restricts the air flow.
In a diesel, not only do you have a range of fuel/air mix that will work (though it still has an optimal one - which is basically what they're discussing with the clean smoke etc), but since you're detonating the fuel anyway by squirting it into the cylinder when you want it to detonate, you can just shovel as much air as as you want into the cylinders (withing reason of course), which means you can produce a range of output power at a single RPM. So to adjust power, you adjust the amount of fuel you burn.
When you realize this, you suddenly get a better understanding for why (or one of the reasons why) diesels are more efficient, and much easier to work with in an industrial setting.
Nice to see my donation helped😀👍👍
I have been waiting for this moment, and it did not disappoint, that was excellent, I had a big smile on my face at the outtrow, being an armchair mechanic for decades, and with the highest qualifications known to man, (awarded by myself ) I was trying to find a way to encourage you to put a bigger or more efficient turbo without getting to much ridicule for saying so, when low-and-behold, it was done and it was a success, I am freaking brilliant, lol well done in getting to this stage, I'm made up for you both.
Iove his dyno keep up the good work
Dear Jess and Damian,
This vlog was for me surprising educational because I never knew such a Diesel engine will run so well with Vega oil. Also on behalf of WIlleke we wish you lots of success with the rest of Brupeg’s restoration and we send you love from the Netherlands
Thanks very much Dick and Willeke
When Dr. Rudolf Diesel designed his first engine in the 1880s, it was designed and originally run on vegetable oil.
Might I suggest some electrical trace heating tape wrapped around the veggie oil supply and return lines? It won't heat up the oil to a higher temp, but it will reduce the system losses to a point where it's no longer a problem.
This is a very common solution in commercial burners when they are using a heavy oil for combustion, the return line is always the most important, especially at max chat, because the return line won't be flowing as much. Heavier oils can easily start to solidify if not above 80 odd degrees........ we sometimes have to heat it to around 130 degrees and atomise it with steam to really get it going.......
When we get to the install and vege setup in the boat we will definitely be looking at this type of thing. Thanks Nick
So happy to see y’all get it to this point I know y’all are elated jus like new parents are be proud of your self your gettin there bite by bite that’s how ya eat away at a project you’ll be splashing that boat before you know it I believe in you guys all of you kudos to Duncan for his hard technical work he is a god send and it’s amazing how it’s not work when you enjoy what your workin on all the best from us okies on the plains in Oklahoma it’s warmin up here gettin a few spring rains but never enough if it was it’d be a flood love you guys be safe in your work n travels tell Jess good job on this one
CC
Soon, very soon. Dame, Carl, Duncan developing benchmark standards for either diesel/vege oil. Outstanding.
Thanks for the date-night entertainment! That engine's looking awesome. Looking forward to seeing Brupeg on water. Very much looking forward to all your expedition footage.
Same!
Was very surprised at the fuel efficiency using canola. Was expecting as much as a 50% higher burn rate compared to diesel. Carl did an exceptional job on the rebuild.
It was very cool to see the engine running! It sure ran sweet.
Absolutely awesome video. It's great that you were able to find a master rebuilder.
Us too!
Where a cummins of this generation was super superior was cost of fuel injectors and fuel pump.........a fraction the cost of anything else. Heating value of Canola oil and Diesel are very similar, but your fuel consumption results are 20% more for Canola....... Its a common issue that different fuels have different combustion burn speed, it might need timing advanced. To do that on a Cummins, the camshaft side cover plates can have their gasket shims changed. It was a really pleasant blast from the past to hear an NTC-855 pulling on that dyno )) My dad, has a 7 liter, 6 cylinder Volvo diesel in his F7 truck (RV) .......by replacing the original first generation Garret T-04B turbo with a Holset H351C..........boost went from 14psi to 20 psi and its vastly better to drive in terms of performance, and cruises more easily. Diesels love boost.
Congrats on a great engine rebuild...may it serve you well for many sea miles.
Thank you!
Sounded sweet. And damn... 1000 ft lbs torques, awesome.
Thank you. This is grate information on running on veggie oil versus diesel. You guys did a great job on this.
I paused the video to tell you that this is fascinating.
Your rebuild philosophy, and having Karl(?) on your team is genius!
That motor is GOLG!
WTG Carl! Looking forward to the install video.
I have a NT855-M300 (NT and not NTA, without the aftercooler) in my belgian canal barge, good news is that it sounds absolutely exactly the same as this one 🙂
That is great to see it running can’t wait to see it go in burpeg
Damo, that was an awesome video, learned heaps, your questions were interesting and that motor is just bloody gorgeous
Sweet to see it running! Now to see how it handles on brupeg!
G'day Crew,,,
Mega cool vid ,we've all been waiting for this one .
After many years of watch keeping various diesel generators , the thing that stands out to me is the smooth sound of the engine throughout its power trials.
Personally,, I'd be very happy with the quality of this rebuild..
Looking forward to seeing the engine aboard BRUPEG.
Best Wishes .
Respect ...!
Thanks Craig, yeah is was a real thing of beauty. Your spot on about it’s smoothness. Also small things like blow by. Spec allows for up to 18 inches but because Carl uses four ring pistons and not the newer three this engine has 1 inch of blow by so fumes etc in the engine room are also much easier to manage. It’s really a stunning engine
we use the same Dynertia Dyno set up on the '66 Mini circuit racer, our torque and power curves are a "little lower"😬 thx guys for being you
That engine sounds amazing. Bravo guys!
You were wise to to get the cummins blue printed , that is one nice cummins . Agree with your operating revs . Loved seeing the bolt I paid for !
Seeing the engine run is great.
I thought I recognized that engine. Had one in a Kenworth cabover. Great engine.
Those 855 based engines don't die unless you kill them
Hi guys, wow the diesel sounds wonderful. I’m so happy to see it running for the first time I really love and appreciate your videos makes me so happy to see what you guys are doing. Keep up the good work Cliff from Logan city Queensland Australia from the big island
That's a beautiful sounding engine!
Loved the sound of the engine sounded so sweet a very good choice of asking Carl to rebuild the engine onward and upwards
Glad you enjoyed it
Very nice sounding engine, its going to take you two and crew miles in the open ocean. 👍👍
Man she fired right up!!!!! Sounds good.
If you ran a hot antifreeze line through your fuel tanks for the veggie oil that should help warm up the oil. And canola oil is over $9 per gallon here in the USA and diesel fuel is $5 per gallon for ultra low sulfer fuels
That fuel economy is pretty good compared to a gasoline powered outboard. A 350hp mercury verado uses about 110l/h on best cruise and 235l/h on WOT. Of course the speed would be 'slightly' different, but those numbers really surprised me.
With this smooth running engine and the right engine mounts. The vibration will be minimal. Makes for a enjoyable experience on board. Being on a boat that shakes like dog in the rain is not fun.
I take it you will use the engine coolant for heating the veggie oil optional temperature with a solenoid when under way.
Ps. I take it the engine will be painted off white. Making it easy to spot oil leaks etc.
Thats going to a great party when she gets her engine installed.
Yes engine is already painted and looking amazing. Freight up to the boat will be late this week. Hopefully see it next week
@@ProjectBrupeg
Wonderful
Give you time to stock up on beer.
Looking forward for the great video. May it be a safe day no troubles tucking in the trans and engine. 👍🏻🎉🍻🍻🍻🍻
Fantastic info and i am so happy for you!
Great day ,I learned a lot 👍🏻
Loved the little tongue in cheek VW diesel, lol
I hope you realise that the BBQ cooks in every backyard in Australia will now be temp testing the oil before it goes on to the bbq plate.This process will now be called "The Brupeg Effect" to reduce smoke while burning the "snags" No more pouring warm beer on the plate to cool it down. Chris
We would be responsible for a dramatic reduction in snag cooking time across the continent due to the extreme cooking temps now in vogue
Can’t wait to see how you build the actual heat exchanger in the boat
You guys are awesome love this channel.
Engine is sweet as a nut. Well done Karl. Get it in Brupeg asap.
that engine looks awesome.
GOLD!
Well done guys. Learned a boat load lol.
Sounds sweet mate, nice motor.
Otto Diesel originally designed his engine to run on vegi oil so back to the future!
you will probably cut a good third to half of the turbo scream with a proper bellmouth shaped trumpet on the inlet side of that turbo charger
Some lagging/insulation on the veg lines and tank would reduce energy loss, as Jon mentioned,
it would also decrease the risk of burning yourself in the engine room, safety first.
You could run the oil through a heat exchange to bring the temperature up. Keep the grate work up
That's great, future engines may run on renewable fuels
Amazing! Good on ya!
A really good insight to the fuel options. Thanks.
Your introductions always make me laugh!😂
Very educational and interesting video. Thanks for taking us along and also sharing your results. Knowing nothing about running an engine on canola oil was very interesting so see the differences between diesel and canola oil in power, cleanliness of exhaust and fuel burn rates.
Excellent!
Awesome to see the heart beating on oil n fuel. Also seeing it go through the motions and passing with flying colours
I was so pleased you used brand new veg oil.. putting some scummy old chip oil through that beautiful engine would have made me sad. :) What a spectacular outcome, well done to all involved.
cool to see the engine in action, great that the veggie oil is going to work out awesome how clean it burns much rather sail around in a boat that smells like a chip shop than a diesel mechanics shop lol problem is the crew will be starving for munchies constantly lol used to work at a shop that was between a jam factory and a bread factory every day on the way to work could smell both always made me hungry lol stock lots of munchies is my advise lol
Wow!
The best way to run vegetable oil in a diesel engine is to use a proper heat exchanger that is thermostatically controlled, I usually build my own heat exchangers. I have used the allison transmissions heat exchangers for vegetable oil and they work really well. The allison heat exchanger has oil in and oil out and water in and water out. On non marine engines I make a heat exchanger that goes inline in the exhaust and the oil is heated right before it goes in the engine. For startups you can blend diesel with vegetable oil and switch to full vegetable oil when up to operating temperature.
I ran my workshop heater on veg, had an urn set to about 120 deg, encountered the same issue as you , so had to a..dd a heater block just prior to the burner to heat it. youll have to do the same pre-pump
Lovely donkey!
When I was operating earth works machinery the company I was working for bought a new D6 swampy dozer from Japan I think it was from. It was filled with some kind of vegetable oil and the smell of the oil from the exhaust made me hungry all day whilst I burned the tank full up
In some places in environmentally protected areas you must use organic oils.
The diesel engine was designed to run on palm oil in the 1800's by a guy called Von Diesel and will run on any veggie oil, in the UK all diesel engines have had to be able to run on veggie oils or bio diesel since 1997, In the Philippines i run my diesels on old filtered cooking oil.