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General Discussion => Q & A => Topic started by: nail lark on December 10, 2015, 03:10:47 PM

Title: pilot bearing
Post by: nail lark on December 10, 2015, 03:10:47 PM

I read it somewhere But now I can't find it . Iam looking for the size of the O.d. of the bearing for a 65 engine. Also does any one know if the material is standard brass or an alloy?

Title: Re: pilot bearing
Post by: sjfd04 on December 10, 2015, 03:47:13 PM

This should help, looks like brass with steel insert.

Title: Re: pilot bearing
Post by: nail lark on December 10, 2015, 06:49:13 PM

yup that's great

THanks
 Morrie

Title: Re: pilot bearing
Post by: WkillGS on December 10, 2015, 11:26:52 PM

Dorman products makes one that fits well:

Dorman # 690-035
1.716" OD
0.594" ID

Originally designed for a Chev with a powerglide to adapt a manual trans. As far as I can tell it's bronze.

Prices start at $5 each for a box of 5 ($25)  from Rockauto, $10 each from Amazon, or up to $40 each from other places!

Title: Re: pilot bearing
Post by: nail lark on December 11, 2015, 12:25:57 AM

Got em

Thanks
Morrie

Title: Re: pilot bearing
Post by: kcombs on December 11, 2015, 01:59:51 AM

I believe pilot bushing are made of oil impregnated bronze, or at least they used to be.

Title: Re: pilot bearing
Post by: kcombs on December 11, 2015, 02:01:30 AM

Sorry, I read the bottom of the chain of posts and thought it was the last one. It is a little late and I guess I am tired.

Title: Re: pilot bearing
Post by: nail lark on December 11, 2015, 07:17:44 AM

No problem Kurt. Being oil impregnated makes cents . I have a bunch of brass stock ,but for the price and availability I can't make them for that. But someday I might just because I like to do that stuff.   

Title: Re: pilot bearing
Post by: telriv on December 11, 2015, 09:35:51 AM

If I remember correctly Buick used a steel adapter & had a roller pilot bearing installed into that.

Title: Re: pilot bearing
Post by: nail lark on December 11, 2015, 09:43:58 AM

Interesting !

Title: Re: pilot bearing
Post by: WkillGS on December 11, 2015, 10:51:12 AM

Originally, they used an adapter to fit the crank, then the bushing pressed into that.
I don't think they used a roller bearing, but that could be a nice upgrade!

If you have a lathe, you could bore out the 690-035 bushing and insert a 690-057 roller bearing.

Specs here for the Dorman offerings:
http://www.dormanproducts.com/gsearch.aspx?type=keyword&origin=keyword&q=clutch-pilot-bushings-bearings&start=0&num=25 (http://www.dormanproducts.com/gsearch.aspx?type=keyword&origin=keyword&q=clutch-pilot-bushings-bearings&start=0&num=25)

Title: Re: pilot bearing
Post by: nail lark on December 11, 2015, 06:37:00 PM

Yup I could ,But I think I would just make the adapter. That 690-035 does it go with the flange in or out?

Title: Re: pilot bearing
Post by: Dr Frankenbuick on December 12, 2015, 03:30:01 PM

Been a long time since mine went in, but I think it was flange side in - flat side out and flush.


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