Another Generac Generator Not Producing Power - Can We Fix It?
ฝัง
- เผยแพร่เมื่อ 19 ก.ค. 2023
- A few weeks ago I worked on a Generac GP7500e that had stopped making power. It ended up having a bad rotor. Today another Generac GP7500e was dropped off not producing power. Same problem? Lets test it and find out. With any luck we can repair the issue and get this generator working again.
Generator Model GP7500e: 0059435
Ken's Small Engine Repair: @KensSmallEngineRepair
Ken's Video on This Generator: • Generac Gp7500E spits ...
The other Generac GP7500 no power video: • Generac GP7500E - No P...
Part 1: Generac GP7500E - No Power Output (Stator/Rotor Swap) • Generac GP7500E - No P...
Part 2: (this video)
Part 3: Generac Engine Rebuild - Wiped Camshaft Lobe • Generac Engine Rebuild...
Part 4: Generac Engine Swap - Worn Engine/Down on Power • Generac Engine Swap an...
I use Harbor Freight Super Heavy Duty Degreaser in my ultrasonic cleaner www.harborfreight.com/1-gallo...
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#GeneratorRepair #SmallEngineRepair #SmallEngine #DIY #Fixed #Troubleshooting #HowTo #Generac
Alternator, Bad Camshaft, Bad Rotor, Camshaft, Dirty Slip Rings, Fault, Fixed, Generator, Hertz, How To, How-To, Insulation Test, Load Test, No Power, Not Putting Out Power, Ohms, Repair, Resistance, Slip Rings, Small Engine, THD, Total Harmonic Distortion, Troubleshooting, Volts, Worn Lobes - แนวปฏิบัติและการใช้ชีวิต
A great Generac Hack brought the Power Back. Thanks for sharing and a thanks to Ken's Small Engines for getting involved. Best to all.👍
The real test, should you decide to accept it, is to make 4 running machines from the three you have.
As usual, entertaining and educational. Thanks.
If you follow this channel keep in mind that he rarely fixes HONDA generators , nothing beats a HONDA.
and the Hondas he does fix are 20 to 40 years old..
and most that have been looked after...
still work.
I can never determine why I am so fascinated with your videos, but they are a highlight of my week. I usually catch them in the first hour after they come out. There is something really enjoyable about learning about machines that I don't see very often in my neck of the woods. Your pa ssion for what you do makes me want to get out and work on my own junk, lol.
I agree with you 😊
Glad it worked out. We never lose power for more than a few hours so I really had no use for it.
At My old House near Town, of 43 Years I had 7 Gen Sets. 3 of which are Antique Military and 2 other Antiques
I for Home Back up and 1 for Camping. In the 43 years I've lived there I've never had to run the House back up HAHAHAHAHA.
Now that I am out in the Boonies and down 1 gen set. In 3 Years I've been here. I have had to Run the Back up several times.
Nice, at least 2 more plus your old one won't be scrapped.
James, with the knowledge that I have learned by watching your videos. I have been able to repair 3 Generators 1 Champion stuck Value also cleaned the carburetor changed the oil and filter,2 Generac 1 with a broken set of brushes, a simple fix also cleaned the carburetor changed oil and filter, and replaced some broken motor mounts. The other one had a value spring retainer worn out. That one 4000XL required a complete value replacement due to you can no longer get the value retainer. By watching your video on removing the head and getting the repair kit which includes new values, springs, retainers, keepers, and head gasket a major improvement in my opinion. I was able to complete the job. Also cleaned the carburetor and changed the oil and filter. The worst part of that job was removing the pull starter shroud and reinstalling the carburetor and air box very tight fit with little room to work frustrating at best. The best part was when starting it one pull with choke second pull running and sounded great. Thanks for the knowledge you are a master teacher. I will keep on watching as long as you keep on teaching! The only mistake I made was shooting one of the value springs and retainer across the room slippery little suckers. 🤣🤣
When you started listing the valve clearances, it finally clicked where the voice and format are familiar from... you're the Lockpicking Lawyer but with generators!
"Little click on one, two is binding, click on three..."
I know why I like watching your videos. I like debugging and trouble shooting things. I like problem solving.
James, after you picked-off that little solder blob from the stater windings, I wonder if brushing on some varnish in that spot might be worthwhile.
A Thursday morning treat! Thanks much.
Another great video, James. You make Thursdays better
That oil is super clean wow looks like it was well taken care of jist had issues
Great video Jim. Like others have said, I guess you could buy three Generac's...or just one Honda. 🤣I'm glad you saved another one. 👍
So nice to see you get three identical gensets to mix and match and parts swap. Now a rental truck will drop off five more on your lawn and run.
Great video looking forward for the next!
You've had me watching FB marketplace to find deals on stuff to fix up. Awesome videos!
Ive learned so much from your channel I remember your first video
Excellent job once again, James. thanks for sharing.😄
That's great you had a parts machine with a good rotor to fix this generator and it's engine will be going to fix Jason's, very nice work as always James!
Nice work,Jim glad you got it done..
The fact that 3 of these machines are having problems, and they are quite different from each other I wouldn't touch one with a ten foot pole.
Three out of ? thousand sold...
over how many years...
with how many hours on average of service between them?
@@JohnSmith-yv6eq 3 out of 3. James doesn't work on all of them, just the broken ones.
Leaning all the time James thanks for sharing your vast knowledge 🦘
Its crazy how that works, the dead machines start multiplying, great video,
Always informational and attention to detail is bar none sir! Another great video indeed! Blessings and respect!
Awesome job Jim!!!! Thanks!!!
love the way he ses hay guys welcome back at the start of every vid
Excellent fix 👍
Another fine fix James !
Testing to be sure that the powerhead is good before taking apart is a very GOOD IDEA 😄
A big THANK YOU to James for all of his awesome videos and the knowledge he has passed on !
We had a power outage the other day. After getting 4 house running on extension cords (just refrigerators and freezers). I went over to the neighbor's house (80+ yo widow) to get her running. No start ! Then I realized that someone (me?) had left the fuel on last time the generator was used (over 1 year ago) and the carburetor was likely clogged. I have always liked working on small engines, but James convinced me to buy a couple of inexpensive tools. 1) External Torx sockets (to remove carburetor studs) 2) A jet/emulsion tube screwdriver (B&S brand; I can't find Bald Eagle Gunsmithing Screwdriver Set and similar sets are much too expensive) 3) The carburetor cleaning kit with the tiny wires and brushes (cheap on Amazon) 4) Extended reach needle nose pliers (straight and 90°) 5) Extended reach small hose grip pliers.
I don't have many spare parts, but when I buy gaskets and other small items I am buying a couple of extras.
I never doubted you James one down and one to go. Thank you for your expertise and reputation especially your neighbors and channel subscribers. Ed in Partlow Virginia.
Excellent job, James
I enjoy watching you show, I also do this kind of work at home. You are very good at what you do.
Nice repair. Very entertaining. Thank you
Great Video Thanks James!!👍👍
Thanks James...
Another award winning job!
Good to see the Brandon unit now working as normal. The one with the worn camshaft had to be in a very damp basement. I hate to think of the mold in that basement.
Great video, good Gen for someone.
Hi James it great you got all the parts with out cost mate A very nice fix thanks for sharing James
I really do enjoy your content keep up the great work
your videos are so good james!
Can we fix it ? Of course James can fix it. I love those rocker arms.
"It doesn't have to be a good one." Love it.
James, a bit of rust converting primer on that stator wouldn't affect tolerances much, and it wouldn't need painting.
... or cleaning off the rust and re-lacquering?
Well at least you got it to work on this one and it is going to be getting it running again 😊
Makes me happy to hear metric units that side of the pond, my life would be complete when I hear centigrade instead of Fahrenheit.
You'll take some heat for that comment....oh wait.....
thanks James
Found your channel bout 6 or 7 months ago. Been watching a lot of older vids. Really enjoy them. Was a mechanic in my younger years before i got grabed ahold of bout 8000 volts of electricity in 83. Both hands were Amputated. Could fix jest about any motor. Watched a vid a few weeks ago of someone in Asia that found a generator half submerged in water. On a dirt covered floor he removed everything down to the last nut n bolt. Never did he tork Anything. Wow. It ran but fer how long. You always have my full attention when I find a vid new or old. Thanks.
Hi James. Sorry to hear about your hands. I to was a mechanic in my younger years. If you look real close at that Asian video, It's not the same unit as he found. Fake repairs. He does the same thing with chainsaws, etc. Good luck to you. Take care. Ken
@jamescook5738 wow ! never-the-less you are still a machinic (turn teacher) and you would be surprised at the young and obedient kids that would love to be taught all you know. 👍👍👍👍
Bravo. Good luck on the other one.
another excellent episode thankyou
Pretty good video, nice troubleshooting and techniques
Nice video, James. Your catching the bad rotor by wiggling the connections shows your experience on these. I've re-soldered the connections on a GP5000 before, not an easy task; I don't blame you for not fooling with it.
It’s fine to fix if your own equipment. Since I sell everything I repair, want to make sure it will last.
Thank you for the video
Great rebuild James! You got a lot of machines stocked up in your garage! Hope the Hurricane season is good to you in selling them all! :-)
Great saves!
👍👍👌👌 Thanks for the video.
When you first looked at the placement of the neutrals, that is how they come from the factory. There is a video on TH-cam titled “Un bonding the neutrals on a Generac generator”
I just switched mine (same
model) to floating neutral and the neutrals were just as you found yours bonded with the ground.
I’m new to your channel. Thank you for the great video, I learnt lots from this. Good job
nice save... cant wait for the next one with the bad cam !!
I will watch it 3 times 😊😊😊
That way I will not miss anything
Thanks
Great job thanks
I sure hope I never have to do this but at least I can see how you did it before trying it in person.
Because of watching your videos I've gotten 3 of my parents old generators that haven't run in forever to run again
Great vid as always like the method of checking camshafts simple and accurate way to determine lobe wear im impressed with the design of the tappets compared with the honda clones but obviously the camshaft metallurgy is poor chinesium . Surprising high THD especially at the crossover points of the output wave under heavy loads and just some high frequency low amplitude ripple on low load. Would like to do some study on what causes it I have my theories but would rather read some techical explainations of they are availble . Thanks again James for sharing your knowledge and wrenching skills.
Good fix and our power co-op recommends Generac gensets but I think I'll pass, seeing all those you work on. The old Coleman is a 96 and still going strong BUT I turn it over regularly and it's in a dry as it gets shed and a maintainer on the battery. It isn't as couth as the new ones but it still does it's job. And I cee you have a green Homelite 2-cycle in the floor. THAT will be interesting. A neighbor had a couple and ran them but I don't know for what purpose. I just remember them being run and me being fascinated by them.He also had an acetylene generator. And was a HAMM radio operator and worked for NASA. And had been gassed in the war. FINE guy and God Bless Yall!
If you want to save the cams in four cycle engines add 10% STP Oil Treatment to the crankcase oil. It is the lack of zinc in the oil that is destroying the cams in four cycle engines.
Nice job James. A while back you had a generator, maybe a 2 cyl, that had a low THD. Do you remember the make and model of that generator? Many thanks for another great video.
Hope ❤you get some compensation for your work. 😊fruit punch looks a lot like fuel stabilizer to me. 😊 As always I enjoy your videos. I believe generators are a poor investment in the long run. Your opinion would be interesting. 😊😮❤
Would you say they were a bad investment if you had a Honda that worked well every time you really needed it in an emergency and you looked after it..... for 40 years?
Do you think that might have a good ROI?
Would love to see how you get a generator loaded IN (solo?) using the ramps you used to unload it out of the car. Always a 2 man job for me unless it's a super small genny.
Small cheap HF 12VDC winch might be the go...anchored onto a front seat track base?
Those Generac seems to be not the best, if I count the number of time you fix them. Great video James, as always.
they made a shit ton of those. not as many as the old powermates but still a lot
@russellv6234 I had in the past a powermate with a Mitsubishi engine. Never had any problems, and it was reliable.
@@mrobi5797 Is there a point to what you just said or can you just not read?
@@russellv6234
He is saying that the "Generac" brand is now slapped on cheap Chinese junk machines imported by scumbag Americans ripping off their fellow American people.
But in the past the name meant a reasonable machine with a reasonable reliability....
so don't tar and feather an older machine of the same "name"...it may be a chance to get a good deal on an older machine?
Another Genny saved!!
Can you tilt the Kill-a-watt display as it’s hard to read. Pls!
nice
Good content
I have one of those Generac GP7500e generators. Very reliable, except for the type of battery. Vibrations killed all of them. Excellent video as usual James. I want to see what you with the other generator.
So could you extend the battery cables and after transport (and before starting) the genset....take the battery out of the holder and place it on the ground??????
No vibrations then......
@@JohnSmith-yv6eq The battery I ended up using is a gel battery. Vibrations do not seem to damage this one.
Great video as always. I thought that Generac guaranteed their generators to maintain 5% or less THD. Maybe its just their standby gensets.
My son and on worked on 2 of the same type 7500 generators with the same issues (bad engines, carbs and cams). I wish we had seen this video before we did the work.
That engine looked to me to be the most stable you've had so far, it proved to be very strong after the replacement power head. Well done. Also I saw you riding somone's Harley a couple of days ago on here. Are you thinking of getting one ? They are great for going down long straight roads. Along windy roads though I would try and access a Honda CBR 1100XX. They are the best bikes on the road, not made any more so parts my have to be hunted, but brilliant nevertheless. I have a Blackbird :) At 75yrs I have no excuses :)
I'd match any HD I've owned including baggers against any comparable Honda on curved roads. The trick is knowing how to ride a motorcycle.
I love your videos and I love your attention to detail and the way you explain everything you do. You have a very no nonsense approach to your videos that I find refreshing. One thing bothers me a little however. At 37:50 for example you say "the Hertz was just over 60 Hertz". I think the correct terminology should be "the frequency was just over 60 Hz. Frequency defines what you are measuring in Hz. Another example would be the same as saying "the inches was just over 60 inches" instead of "the length, (or width or distance etc.) was just over 60 inches". Another example could be "the receiver ran a yards of over 60 yards". Doesn't sound right does it?
Grammar was never my strength
@@jcondon1 There is absolutely nothing wrong with your grammar! It's just the terminology thing that bothers me. It's like when someone says "I'm going to Ohm it out" instead of "I'm going to check the resistance". I'm an old school consumer electronics technician and some the stuff people say nowadays kinda freaks me out! You do a great job on your videos and I must have watched a hundred of them and I always hit the "like" button. Keep up the good work!
New torque wrench?! Nice.
Very informative and great videography as usual! Any chance you have a spreadsheet of normal measurement values for all the different gensets you’ve worked on through the years?
No spreadsheet. The vast majority of generators in the 5000-8000 watt range made in the last 20 years the stator comes in at 0.4 ohms +- 0.1 ohms, the rotor between 40-70 ohms, DPE 1.5 ohms (1-2.5 ohms). Not all fall into that bucket. Some rotors as low as 3 ohms is good. Some stators as high as 1 ohm is good.
@@jcondon1 Thanks James…most appreciative. Great channel!
@@jcondon1 1 thing..... ive learned from buying chinese rubbish,, allways,, check all the bolts..connections,.
@@jcondon1 should change oil, every wk or month, depends on use.. this is why they blow up,, no one changes oil,,like there car...as well..
Nice video 😊🙌👍👌🍀🇭🇷
Hard to beat the sound of a bolt cracking loose.
James the man ,, I like you
👍
Do you have the correct flux and solder for soldering aluminum to copper??
Good morning my name is Ron what are the chances that my Honda electric start I believe it’s a 5500 generator is good after being submerged in flood water here in Vermont? I’m sorry but I didn’t find any other means to reach out to you thank you much by the way I’ve been watching your channel for a while now but the flood here has put a damper on things I’ll get back to watching you soon thanks a lot
There is a chance. The engine, fuel tank and carb must be promptly drained. Electrical components dried. It important to get fresh oil in and the engine running asap to build some heat. Would be a good idea to pull the brushes so the system does not power up. You want the stator to be 100% dry before trying that, but the engine needs to run with fresh oil asap. It will run again. The question is did the crank rust up. If so then it may not run for too many more hours. Run it for 10 or 15 minutes and change the oil. Do that a couple times.
❤❤❤❤
I wonder if the red stuff in the fuel tank was fuel stabilizer. I know that there's a few popular brands that are reddish in color.
I have a powermate 5700 watt that the wire coming out of the rotor going to the slip ring broke about like the one you were working on.
As of yet I have been unable to find another rotor or complete power head. Best I could determine a new power head is about $500. More than I would like to spend.
Pro tip for hitting things with a hammer: always use something in between, so that if you miss, you don't hit anything vital. A copper rod of say 1 inch in diameter and 8 inches long would be nice. Place it against the bolt head and hit the copper with the hammer. This way the hit doesn't have to be so precisely located and having copper there also doesn't magnle anything.
I asked the harbor freight store mgr to research the Bauer battery powered torq/impact wrenches he said changing the setting 1,2 or 3 merely changed the max spd of the impact and not the torque applied that does not appear to be the case on the Ryobi impact
Good morning James, this is Neal I bought a new Generac 2500 I that is the GP 2500i. It’s a new unit and I bought it as a back up for my Honda 3000 c. Also, for my tent, camping for a quieter running machine. I’m curious as to the ramifications of the harmonic distortion could you please explain that a little further thank you.
Where do you find what all the proper torque value’s are at?
great video as usual.I wonder if I can use regular car oil in such engines. I have 15hp honda clone and 7,5hp daewoo 210series and i want use 5w40 oil( valvoline).the manual for daewoo says 5w30...
5w40 could work, but only for hot climates, 10w30 is for normal weather and 5w30 is for cold weather
Hmm, with 3 dead Gernerac 7500 just in this video, how good are those? Is the high number of failed units because there are so many of them out there, or is the failure rate quite high?
The are no better or worse then the others out there. At least generac sell parts so they can be fixed.
Learned a lot from your videos. I have a Generac XG 10000e. I did not run it for about 3 months. I changed the spark plugs and charged the battery. Tried starting, but would not start. Is there a way I can get carburetor cleaner into the cab without removing the fuel tank?
James, this may be slightly off topic but I am in the market for my very own ultrasonic cleaner.
What ultrasonic cleaner would you recommend?
I'd like to see the slip-ring/rotor connection and understand exactly why those wires can't be attached soundly. It seems impossible that they can't be fixed. I didn't know aluminum presented difficulties when soldering.
What temperature do you set ultrasonic cleaner at for carburetors?
Thanks