Shibaura Engine running generator

[Industrial Toys]

It's why when doing the process of elimination, I put a big booster clamp on the aluminum flange of the starter going to negative..

 

[zzjea]

Just got back. Cleaned everything including flanges, brackets and bolts. No luck with either the regular MH circuit or the car battery jumped at 14v. I'm beginning to think that all of these connection issues (especially ground) may have damaged the starter itself. It will run outside of the vehicle stand alone but can't crank the engine no matter what. My next option is to either load test it or take it somewhere that works on starters and see what they find.

 

[WranglerX]

Find commercial automotive/industrial electrical shop that rebuild starters and such and have it tested....It's the kind of places that does diesel truck and forklifts and such... Check local phone book.... Forget i-net...

Dale

 

[Industrial Toys]

All the people on here and no one that is capable is close by and can help? All just WORDS I guess. Cheap by any standard.

 

[westcliffe01]

There appears to be copious corrosion on every exposed surface of that unit. Look at the state of the flywheel and ring gear...

If I were you, I would remove the entire unit from the MH, take it home and deal with all of the corrosion by sand blasting, priming and repainting. Lubricate the ring gear with a little sticky grease. Verify the condition of the rear oil seal on the engine since the sealing surface of the crank is probably in a similar condition to the flywheel....

Because of the difficult to access location, I would replace all of the low voltage wiring and the solenoid and use copper anti seize at all high current connections to ensure good contact and exclude water from these surfaces. It wont be that expensive to do and should save you a lot of pain in the long term.

I just replaced the starting battery in my wifes Z4. It happens to be an OEM AGM battery and for whatever reason had just reached the end of its life. The charging circuit was applying 14V but it could barely crank the engine at all. I put in a regular lead acid 12V battery and the engine spun over like it just came out the factory. Yes, starter solenoids degrade and the higher the starting load the higher the current and the more internal heat is generated. The windings in the starter may be cooked if battery voltage has been too low over years. I think though that the starter pinion to ring gear friction is probably off the charts due to the corrosion. Gear flanks do make sliding contact and that flywheel looks nasty.

 

[Industrial Toys]

Most of the mobile generators that my friend replaces are corroded all to heck. They often put them in locations suceptible to road spray. It's quite sad.

 

[WranglerX]

All the people on here and no one that is capable is close by and can help? All just WORDS I guess. Cheap by any standard.

Sorry but his profile does not reflect where he lives... IF he were close I might be inclined to help... Other than just "offer words"...

Dale

 

[zzjea]

I took the starter to Autozone but they would not test it as their tester is automated for a specific car and part which this does not correspond to. I went over to HF and bought a cheap Bat Load Tester. I will use it next time I put the starter back in.

I am going to try to find a starter/repair shop somewhere on Monday in my area and take it to them for analysis. The diesel truck shop where I get my Cummins maintenance done should know a starter shop in the area.

It turns out that the current starter is probably not actually a Generac but an aftermarket. They told me it was a Generac but they may have meant that it was a replacement for the Generac. Giving them the benefit of the doubt. It cost twice as much as an aftermarket so I thought it was a Generac. It could have been bad or deficient from the beginning. I have been dealing with 3 starters: the original one (I don't have it now), the second one I'm pretty sure is a Generac but is obviously bad (carbon coming out) and this last one which may not even be a Generac.

 

[Industrial Toys]

My Onans/Kubota sets use Denso Starters. When I was having my issues, I just bought a cheap aftermarket one on E-Bay. Works great, but it wasn't my problem. Never hurts to have a spare starter for a Diesel Generator.

 

[zzjea]

Someone on a Generac forum made this comment:

Peddler wrote:
"I would guess you have an injector that is bad and flooding the cylinder and you coming up on hydraulic lock and the starter can't turn the engine over. Check to see if you have gained any oil which would be a sign of flooding a cylinder. Then I would remove all three injectors and try tuning the unit over. This is a touchy subject as the fuel is pumped at very high pressure and can hurt you if you get shot. I would disconnect the lines from the pumps if you do this. You could also try turning the unit over by hand when the start stops turning it to see if it is harder then normal which you may not know. Has the unit ever run for you?"

Any comments on this suggestion?