Coleman Powermate 4000 Revisited

DonNOhio · May 15, 2019

I picked up the generator this afternoon. It has a Briggs engine, which is good. Definitely low tec. Pull start, and two outlets each for 120 & 240. 4000 watts surge, 3600 running. It will serve my needs.
Thanks again for the input.

Billy Shafer · May 15, 2019

Has it ever been used. That looks like the same gensection Onan used.

Billy Shafer · May 15, 2019

These are the parts manual for the Onan units. They might give you a source for parts. Out of production but it may give you some help. Go to Smokstak or Twinslan Onan manuals.

919-0220
919-0309

DonNOhio · May 15, 2019

Used very little.Elderly gent had it in his garage and asked the neighbor to sell it as he was unable to start it any longer. The only thing I see it needs is a fuel shut off, leaks a bit. Tightened the packing to no avail. I am going to put a better muffler on it as it is rather loud. Maybe a bigger gas tank too.
Thanks Billy for the parts reference.

Jim in rush co · May 15, 2019

Don, looks like I got almost a mate to it. Like this one real well except for small gas tank!

JDEM · May 15, 2019

I have a 4000 and a 5000, both with Briggs & Stratton engines. Generators have been flawless for years. Just noisy. I put extra mufflers on them and it helped a lot.

jeffcat · May 15, 2019

Looks as if you got a very nice deal. Good find. Give it a wax job. By the way you can get quiet run muffers that are made for generators. If you can do a little cobling get a quiet run muffler and hook it up. They make a Big difference. Take a look on Ebay at number. 253848673410. I mounted one like that muffler on a big generator I had. Staggering difference.

jeffcat · May 15, 2019

Had to chuckle when I saw your car muffler. Thought people might be puzzled if I told them to go junk yarding and pick up the muffler from a Pinto. They were a perfect small oval muffler and were great for hack jobs like this. The Pinto had that little 4 cylinder engine and didn't need that big of a muffler. Ahhh the good old days.

DonNOhio · May 15, 2019

Several years ago I had a Onan out of a RV. I added a farm tractor muffler and gas tank to it. It would run quiet and about 15 or 16 hours on 10 gal. I was thinking of using a Farmall Cub muffler. I need to go to Glenn's Surplus in Shelby O. and shop around. They have a lot of lawn tractor and mower parts.

T.R.K. · May 15, 2019

My parents bought one just like that right before Hugo came through NC. Was that '89? We kept it going steady for 9 days while the power was out, running freezers and refrigerators at three houses. We would run a tankfull out at our house, haul it to Grandmother's, hook up, run a tank full through it, go to Aunt Lib's, and do the same.

I have another much newer generator, but I bet that one will be the one that starts when I need it.

I think you will get good service from it.

Its loud though.

Coleman Powermate 4000 Revisited

DonNOhio

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Billy Shafer

Well-known Member

Billy Shafer

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DonNOhio

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Jim in rush co

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JDEM

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jeffcat

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jeffcat

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DonNOhio

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T.R.K.

Well-known Member

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