Starter grinding

[Aurelio corso]

I have a 86 long bed 2.8L and ever since I got it I have replaced 4 starters ,last week a used fly wheel in excellent shape and new starter and it still squeals when I stat it.Just adding shims did help a little.The engine I think came out of a dodge.I don't do the work myself but have a shop I take it to.Any ideas of what else could be causing this problem would be appreciated.......thanks Aurelio

[Green Mesa XJ]

The engine is a Chevy design as is the starter.

What kind of sound? My 85 XJ has a worn spot either on the flywheel or the starter teeth, every once and awhile the starter spins without fully engaging.

 

 

Far as four bad starters rebuilt starters have a ton of quality issues recently so four bad ones could be their Quality Control. I've read a bunch about bad rebuilt starters and alternators in the last few years.

 

Not sure what the exact cause could be since it's all GM it ought to be fairly common parts.

What did the old flywheel look like?

 

 

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[Green Mesa XJ]

Here is a general how to from Eric the Car guy. My new 2.8 starter for my upcoming 30 + year rebuild has shims with it, honestly can't remember if the last time I replaced it there were shims.

 

Anyway Eric can give you the basics of how it works . I'm still curious about what kind of sound it's making I'm thinking the shop doesn't deal with gm stuff much.

 

 

Edit, some s10 people suggest bolts being used incorrect, sometimes they can be too long so them seem tight but the starter is slightly out of alignment. Or just a bad starter.

 

 

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[Aurelio corso]

I will pick up bolts with a shoulder and have my guy dykum the gear on the starter to see exactly were we have contact .....thanks Aurelio