Yanmar Heat Exchanger & Exhaust Elbow
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- เผยแพร่เมื่อ 17 มิ.ย. 2024
- Yanmar Heat Exchanger & Exhaust Elbow
Sailing Sunday; / @sailingsunday
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My yanmar both engines weren't giving out water from the exhaust...changed the impellars...and now you gave me hope...Will check the exhaust elbows and heat exchangers...THANK YOU...
Thanks for watching 👍
This video raises the bar here on TH-cam, well done! People talk about phosphoric acid over muriatic, but in my opinion most of those differences are simply a matter of dilution and safety. It is so cool to see a turbo on that little Yanmar. The main weakness on my engine is the V-belt, and the absence of a belt tensioner. I was a little surprised to see no coolant overflow reservoir.
Hi mate. Thanks for the comment. Ryan is going to change his V belt for a serpentine belt in the near future. You can get them as a kit on ebay. There is a small overflow bottle at the back of the engine. The cap is old school with a hose that goes to the bottle and it just fills and empties as the coolant expands or contracts. Quite old fashioned but reliable. I do like the Yanmars they are well built. Sail Safe mate. Ant, Cid & the pooch crew.
Great vid. Super informative for the sailing boat owners
Glad it was helpful! Check out our other 300 Videos. There are lots of top tips. Sail Safe mate. Ant & Cid
I saw a Renovatio in the intro! Same name as my SV. Well chosen!
A fan sent us a picture a few days ago. She is currently in Brighton Marina on the UK's South coast. She has done a lot of sea miles. Sail Safe mate. Ant & Cid
Enjoyed!
Thanks Stuart. Sail Safe mate. Ant, Cid & the pooch crew.
Did it start???
Nope...
Haha just kidding!!!
Glad I make you guys laugh! I had to watch this to learn about my own engine again because I forgot already! Lol!! Thanks guys 🤙💪
LOL I'll be over to inspect the varnish on them steps soon :-)
Nice video, very instructive as always, we are near Barcelona, and start to sail Este to Greece in one more month, we are animal lovers, and have an amazing dog a board.
Fair winds!
Enjoy your trip. Barcelona is a wonderful city.
New friend, watching from Manila, Philippines👍👍👍
Thanks and welcome
Great video
Thank you Captain. Be sure to go back through our other videos as many of the features we talk about are common to marine diesels. Thanks for watching Sail Safe mate. Ant, Cid & the pooch crew.
Ps love your videos!
Thanks Hendrik
Good training vid.👍 You have done a great job of moving Ryan up the confidence curve and in the process created a toolaholic.😉 You know this, but for the benefit of others, while Ryan was speculating why he did not have a leak with the ‘Misplaced seal that had moved from its design position’ - he did have a leak but just could not see it. The purpose of that seal is to divide the cooler into passes and his leak basically mixed hot and cold sea water between the passes.So, in service and with clean tubes the effectiveness (even with clean tubes) was very much less than designed for, probably - 30% and in combination with the tube fouling he may have operating with effectively half a cooler. Keep up the good work, you produce good stuff that is a great reference for others. I am envious that you are out and about - still locked down here and the overall picture in Europe is not at all encouraging.🤔⛵️
Hi Norman. Ryan has been ordering tools like a man possessed! It is good to pass on a little confidence and watch it blossom. We have just gone back into lockdown and it looks like we are going to be set free at the end of April. Hopefully we can then head East. Sail Safe mate. Ant, Cid & the pooch crew.
I wish they would’ve shown the brushes being used cleaning out the heat exchanger calcium.
Yes. Unfortunately we were not there at the time. Sail Safe mate. Ant & Cid
Any chance you could do a video on the timing of the 4jhht(B)e your videos are awesome. New subscriber
I'll try to find one that need doing...
I’ve seen Yanmar heat exchanger cleaning video done using ‘barnacle buster’ solution. Put simply, using a spare bilge pump attached to the heatex input hose, at the bottom of a bucket of barnacle buster, and the heatex output pipe diverted for returning the solution back to the bucket. They ran it for an hour or two. Still thinks its worth removing end-caps for visual inspection and replacing the seals. Thoughts welcome :-)
Agree Joe. If it has bits of impeller or something other than barnacles it will still stay in there. Best to clean it out every now and then. Sail Safe mate. Ant, Cid & the pooch crew.
Would it be possible to show the bit about replacing the rubber seals on the ends of the core without taking it out of the heat exchanger? I notice that mentioned in the audio discussion but the video seemed to completely miss the reassembly. Thanks.
Susan. Hi. We will do a bit of a how to script for you tomorrow. Unfortunately we did not do all the footage so we will talk you through it.. However it is the same in principle as the volvo penta engine. If you go back to the heat exchanger video we did last year it is much clearer. Post something tomorrow.
Susan. The two O rings located around the inner core are put on first. Use a little silicone spray or glycerin gel to help ease then over outer edge of the inner core. Do not use vaseline. With the core roughly in position. The rear cover plate or end cap is identified by the indent or peg hole in it. This peg is located on the back of heat exchanger outer casting. Place the inner gaskets inside the end caps. Locating these can be difficult but you can use the smallest dab of RTV to hold them in place. Fit the rear end cap first locating it on the dowel peg. Replace the 3 number cap bolts uniformly so the cap is pulled into position evenly. Torque the cap bolts to the setting stated in the manual. You can then repeat the process for the forward cap. Hope this helps. Ant
Where are these types of engines sold? Is it the good kind?
What’s the pully / extractor Ryan bought? Any suggestions? I’ve been fooling around with plyers and screwdrivers...
He got it from Amazon. It was relatively cheap. I will see him tomorrow and see if he has a link.
Sail Safe mate. Ant, Cid & the pooch crew.
I noticed you only put "o" rings on in place of the gaskets. The gasket seals the partitions and directs the coolant fwd turns and other end then flows aft then flows fwd again giving 3 part cooling. I think an "o" ring won't fully allow this.
Keith. We did replace them they are shown at 7:44. Ryan just did not film the new ones going in. Thanks for watching.
I need to clean up my heath exchanger from a trashed impeller. Would it be enough to drain the seawater only via the seapump by removing the cap to the pump?
You can but it is better to do them both at the same time. incase yo contaminate the coolant or damage the O rings during the encap removal. Sail Safe mate. Ant, Cid & the pooch crew.
How did you clean the exchanger? What is the 5mm threaded rod for? You talked all about it, but then didn't show it.
Push the threaded rod into the heat exchanger tubes gently to clear them you can use pipe brushes too as these are gentle. Use a shop vac to clear the debris. if it is really bag remove the exchanger core and soak it in white vinegar or a weak acid solution.
What about the aftercooler, and zincs for both coolers??
Read the title.
Why would you not remove the heat exchanger and clean it thoroughly?
That would be rather foolhardy. The service intervals specifically refer to heat exchanger cleaning periods. These should be observed or even increased depending on the salinity of the water you cruise in. Sail Safe.
Tem quantos Hp esse motor????
55.2 kW / 75 mhp
1:55 Can someone please explain why an anti-syphon is needed here for the raw water intake?
Hi. The anti syphon loop causes a break in the raw water line using an inlet valve for air. When the engine stops the air is allowed to enter the loop through the valve and break the syphon effect that would continue to allow water to enter the exhaust, filling it up and then letting it into the engine via an open exhaust valve. This would likely cause damage possibly hydrolock the engine on re-starting or allow raw water into the engine. See our video called "exhausted" which explains the issues in more detail. Sail Safe mate. Ant & Cid
For such a video instruction, the Yanmar company must pay you extra or provide spare parts for free.
If only they did. Thanks for watching, Sail Safe mate. Ant, Cid & the pooch crew.
@@SVImpavidus Thank you for the excellent content from a former yachtsman due to circumstances. In the past, my mentor was the three-time Olympic champion Valentin Mankin. With great greetings from Russia.
Look at the elbow welding 5:40. Many creeks. As usual with Yanmar. Bad works from suppliers. Never garantee. Please stops to take customers as ducks !
What about the addition of coolant? The videos was wonderful until you took a totally different direction with another youtuber., Dissappointing
We try not to use the same footage when we do these collaborative videos. If you check out Sailing Sunday's footage you will see the alot more info. Sail Safe mate. Ant, Cid & the pooch crew.