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Re: Alternator STC

Posted: Tue Nov 29, 2022 9:41 pm
by reecewallace
I'm on my third generator in three years. What a piece of garbage. I'll be upgrading to an alternator next time it fails.

I have a 20amp Delco Remy generator. It ALWAYS leaks.

I've had one fail completely, and the second generators drive draft stripped after only 20 hours rendering it useless.

Right now, I'm on my third generator, but it does not stop leaking. I've replaced the gasket, oil-seal, and o-ring which temporarily stops leaking but then returns.

Re: Alternator STC

Posted: Wed Nov 30, 2022 2:07 am
by Bruce Fenstermacher
Reece, if you can't stop the leaking generator, how you going to stop the alternator for leaking? Same seal.

Re: Alternator STC

Posted: Wed Nov 30, 2022 2:14 am
by Joe Moilanen
agree, 34 years with same generator, no problem...

Joe
4518C

Re: Alternator STC

Posted: Wed Nov 30, 2022 3:54 pm
by edbooth
reecewallace wrote:I'm on my third generator in three years. What a piece of garbage. I'll be upgrading to an alternator next time it fails.

I have a 20amp Delco Remy generator. It ALWAYS leaks.

I've had one fail completely, and the second generators drive draft stripped after only 20 hours rendering it useless.

Right now, I'm on my third generator, but it does not stop leaking. I've replaced the gasket, oil-seal, and o-ring which temporarily stops leaking but then returns.
Make sure and check the gasket that seals the alt/gen and tach drive housing. Sometimes the small area between the alt/gen and tach drive developes a leak that runs down and appears that the alt/gen seal is leaking.

Re: Alternator STC

Posted: Wed Nov 30, 2022 8:27 pm
by cessna170bdriver
Bruce Fenstermacher wrote:Reece, if you can't stop the leaking generator, how you going to stop the alternator for leaking? Same seal.
One reason his generators might leak is that they are most likely rebuilt (are new generators even made?) and the area of the shaft where the seal rides is worn. I had the same issue with my old generator (and starter). The latest seal on my Jasco alternator (about 1800 hours total time) went 400 hours before leaking the first drop.

Also, as a shortcut, some people cut the tach section off of the new gasket so they don’t have to remove the tach drive housing. That pretty much guarantees a leak, as that housing drains back to the generator opening.

Re: Alternator STC

Posted: Thu Dec 01, 2022 3:15 am
by n2582d
cessna170bdriver wrote:One reason his generators might leak is that they are most likely rebuilt (are new generators even made?) and the area of the shaft where the seal rides is worn. I had the same issue with my old generator (and starter).
Has anyone had experience using Timken’s Redi-Sleeves to repair a worn shaft? It looks like the p/n for a 0.968” diameter shaft would be 99096.
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