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Author Topic:   Starter problems
RACEINMUD
Dirt Freak

Total posts: 323
posted August 19, 2005 10:36 AM  
Hi All, I recently freshened my SBC and went back with the same set as before regarding mini stater and flex plate. Car started fine first few times then all of as sudden it grinds like mad when I try to start the thing. The starter seems to want to move up and down as I crank it. I have it tight but it still wants to wobble. Any ideas? Thanks, Race

sideways
Dirt Forum Champ
Total posts: 715
posted August 19, 2005 03:12 PM  
Bent flex plate maybe?Something to look at.

R & R Racing
Dirt Newbie

Total posts: 4
posted August 19, 2005 04:34 PM  
You might also want to be sure the mounting bolts are tight and straight. I had one that was doing that, and the mounting bolts were bent.

WesternAuto17
Dirt Forum Champ
Total posts: 569
posted August 22, 2005 07:29 AM  
I had this same problem with my demo car this year. I re-shimmed the thing a hundred times. It would start once or twice and than grind like crazy. I changed the bolts, tightened all the bolts on the case and everything else I could think of. Finally, I just swapped the starter out for another and it worked like a dream.

The first starter was new (from NAPA) last year, but something just wasn't happy in it.

RACEINMUD
Dirt Freak

Total posts: 323
posted August 22, 2005 12:25 PM  
Thanks all. I made it thru last nites races But each time I started it, it got worse. Got my first 2nd place finish in the main and after getting trophy on the front stretch, started just guit. Had to get pushed in. Time for a new starter . Thanks, Race

WesternAuto17
Dirt Forum Champ
Total posts: 569
posted August 22, 2005 01:32 PM  
Nice work on the finish, but be careful startin that bad boy while its wanitn' to grind or you'll be putting a new flywheel in with the new starter.

James Ott
Dirt Maniac

Total posts: 131
posted August 23, 2005 10:19 AM  
There is some play or movement in the mouting bolts so you can "adjust" the placement of the starter. If grinds with a loud shreak hold it closer to ring gear as you tighten the bolts. This worked for me!

------------------
"Winning heals all wounds"

Clyde Torkel
Dirt Full Roller

Total posts: 33
posted August 23, 2005 07:55 PM  
Start with the starter bolts. The must be starter bolts with the knurl on the shank, not plain 3/8" bolts. Otherwise they will be loose in the starter holes. Rebuilt starters often have worn holes. A NEW starter nose will cure this. Next are the shims. I think the engine blocks are much the same but there is a wide variance in the aluminum starter nose castings, some are imports not OEM.
How to shim a starter: with the starter installed a 1/8" rod should pass between the round part of the starter gear and the flywheel teeth. It should fit much like a feeler gauge that you would use in setting the valves, not too loose and not too tight. The flywheel should be turned so a tooth is pointed directly at the starter gear. This should cure your starter problems as long as the bolts are snug in the starter holes. Once this is all established, and should you have a starter failure (electrical) use the same starter nose on the new starter.



    

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