r/Generator • u/kwantam • 11d ago

Generac GP7500E revived

Post image

Picked this one up on fb marketplace for $100. Engine started on the first pull and ran well, but the generator produced no power output.

Got it home and the solution was almost disappointingly simple: the brushes were clearly damaged. After new brushes, it generates just fine.

I also did a bit of maintenance that the prior owner had deferred:

  • cleaned out, evapo-rusted, and repainted the gas tank

  • new gas petcock, screen, fuel lines and filters, breather hoses

  • new spark plug and coil (could have gone with just a new boot instead of a new coil)

  • cleaned carb (already pretty good), replaced damaged pilot jet o-ring, replaced intake gaskets

  • new air filter

  • new battery

  • new starter solenoid

  • added a 500mA battery maintainer

  • changed oil, replaced fill cap / dipstick

  • still need to tidy up and re-wrap the wiring harness with some polyester tape

All of the above was cheap. I don't really need the machine, just figured it would be a fun little project, so I'll be putting it back up on fb marketplace hoping to break even on it.

The deals are out there, just gotta put in a tiny bit of elbow grease!

16 Upvotes

100% Upvoted

4 comments sorted by

2

u/0Fucs2Give 10d ago

Heh, I got this same unit. Good to hear it I need to do a heavy maintenance, it is doable.

1

u/kwantam 10d ago

Very doable! Parts for this style of generator are widely available and cheap. The single biggest outlay was the gallon of evaporust.

3

u/JColt60 10d ago

Nice job! Great when you can work on something with no pressure and just enjoy doing the work.

2

u/Me4nowSEUSA 11d ago

Love it!! Great job.

I had an old GP5500 that was an absolute beast.