Starter motor issue.

[johnpblack]

Hi,
I'm wondering if anyone can help.
I have a 440 big block with a 727 transmission.
My starter motor keeps twisting out of place. I have a high-torque mopar starter motor, it manages to twist itself enough so that I cant start it after. This happens every 10 or so start ups. Bolts are tight with lock tight but still manages to twist.
Has this happened to anyone else and if so what is the answer to fix this?
Thanks.

 

[dadsbee]

Wrong size bolt or stud in the lower hole

 

[johnpblack]

Wrong size bolt or stud in the lower hole

I don't think that's the issue its the bolts that come with the starter motor so I would assume not.
I will have a look at that though. Thanks

 

[dadsbee]

Bolts that came with starter, that's a new one. 3/8ths top, 7/16ths lower.

 

[493 Mike]

Seems to me a 5/8" wrench fits both starter cap screw and nut on stud? That would make them both 7/16". Am I having a senior moment?
Mike

 

[johnpblack]

Seems to me a 5/8" wrench fits both starter cap screw and nut on stud? That would make them both 7/16". Am I having a senior moment?
Mike

Mine are both the same which is 7/16"

 

[R/T Boy 67]

Does the starter have a snout, that fits into a recess in the transmission?

 

[johnpblack]

Does the starter have a snout, that fits into a recess in the transmission?

Yes, it does. It's not snug in the hole it is slightly loose. I spoke to a mechanic friend of mine, and he said there might be some kind of sleeve that goes into the transmission recess to make it tighter on the snout?

 

[Bird 426]

The starter nose going into the recess in the bellhousing is the key to alignment. Plus, say a Denso Dakota starter , one hole is large, larger than 7/16". It should not be needed, but I made a bushing on my lathe to correct that large hole in 2 of my starters. Never had a problem or failure without the bushing.