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Honing Wrist Pin Bushings

Posted: Mon Nov 04, 2019 3:43 pm
by Bill Lawless
I probably already know the answer to this ...

Can you hone you own Wrist Pin Bushing? I had one that was a little loose so I put in 4 new brass ones from Stoddard.
Can you hone these or are you at risk of getting out of parallel to the Rod Journals? Or is this a machine shop only task?

Bill

Re: Honing Wrist Pin Bushings

Posted: Mon Nov 04, 2019 3:45 pm
by Martin Benade
I think machine shop to get it right

Re: Honing Wrist Pin Bushings

Posted: Mon Nov 04, 2019 5:14 pm
by Bill Lawless
Thanks..
I found a machine shop that can do them first thing in the AM..

Anybody know how much clearance there should be?

Re: Honing Wrist Pin Bushings

Posted: Mon Nov 04, 2019 6:23 pm
by Tim Berardelli
Bill,

.0005 or 1/2 of a thousands of an inch . Are they using a device called a "bearing master" ?

Re: Honing Wrist Pin Bushings

Posted: Mon Nov 04, 2019 6:24 pm
by Tim Berardelli
Bill,

.0005 or 1/2 of a thousands of an inch . Are they using a device called a "Bearing Master" ?

Re: Honing Wrist Pin Bushings

Posted: Tue Nov 05, 2019 8:22 am
by Bill Lawless
Thanks Tim, on my way there now..

Elfrink says .0008-.0014
But I’ll tell them.0005
Thanks

Re: Honing Wrist Pin Bushings

Posted: Tue Nov 05, 2019 11:07 am
by Bill Lawless
30D68C75-EF2A-4009-9BD4-F5FEEDAB75A9.jpeg
30D68C75-EF2A-4009-9BD4-F5FEEDAB75A9.jpeg (2.07 MiB) Viewed 303 times
All done, exact 1/2 tho clearance..
This is the machine they used:
2415BBD2-5A19-4D71-94BB-EC3B81F3096D.jpeg
2415BBD2-5A19-4D71-94BB-EC3B81F3096D.jpeg (2.44 MiB) Viewed 303 times

Re: Honing Wrist Pin Bushings

Posted: Tue Nov 05, 2019 7:12 pm
by Tim Berardelli
Bill,

The .0008 spec is for A/B rods.

Re: Honing Wrist Pin Bushings

Posted: Tue Nov 05, 2019 7:59 pm
by Bill Lawless
Ahh, Thanks Tim.