installing pin bushings

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rocketracer380
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installing pin bushings

Post by rocketracer380 »

i have a set of olds 350 rods small measures .977-.9785 bushing measures .980 od i chilled the bushing and heated the small end in boiling water and pressed the bushings into position is .0015 - .003 an adequate press fit what should the pin clearence be set to
rustbucket79
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Re: installing pin bushings

Post by rustbucket79 »

I would be a little leery with a bushing that can be assembled in a rod that way, I use red loctite and use a hydraulic pin press to install the bushings.

If the bushings are steel backed, I proceed to honing. If they are a split bushing I use the Sunnen tooling to Swedge the bushing into the rod bore.

Now as far as the clearances, Sunnen recommends .0003 to .0005 clearance. I prefer a bit looser, in the .0007” range, and some applications can be in the .0015” or even greater when using a vacuum pump. A shade tree method is once the pin slides through the bushing when oiled under its own weight it’s good to go. (Must be flushed of any bearing and stone material)
rocketracer380
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Re: installing pin bushings

Post by rocketracer380 »

yes i used red loctite when i pressed them in
rocketracer380
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Re: installing pin bushings

Post by rocketracer380 »

it isnt steel backed or split it is .031 thick
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Baprace
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Re: installing pin bushings

Post by Baprace »

What size wrist pin are you using ?
rocketracer380
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Re: installing pin bushings

Post by rocketracer380 »

.927
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