wrist pin bushing

[ugly UB]

I have pistons that have a 1 1/2 pin and may rods are 1 1/4 what is the best way to bush them or the materal to use and to retain the pin can a guy use buttons on the end of the pins if so what what materal can be used thanks

 

[wi50]

It's been done before. Machine bronze or brass type bushings like a wrist pin bushing the length needed to be flush with the pin ends and leave just a little clearance to float to the rod, aluminum buttons to hold the pin and bushings centered.

I would drill oil holes in or grove them a bit so that everything can get oil and allow it to float.

 

[ugly UB]

thanks for the reply it is for my moline tring to figure out piston combination for stroking do you know what grade of bronze or alum

 

[Anonymous-0]

any chance if you removed the bushings out of the rods it would be the right id to run the pin in the rod without a bushing? I've done it before.

 

[Anonymous-0]

Just use the right connecting rods.They are out there if you know what to look for.

 

[ugly UB]

no it has a real thin bushing in the rod

 

[ugly UB]

I don't want to buy custom rods or pistons. with the pistons that I have I need to run 9.5 rods and 6.75 stroke do you know of any rods with 1.5 wrist pin and 9.5 long

 

[Dblair]

leave a little in the bushings and have them line honed, after they're pressed in .

 

[a4]

B-544 [leaded phosphur bronze] ,532,534,545 are similar. I read this is what KB engines used............

What bore are your pistons? comp height?

 

[ugly UB]

4.756 bore 2 5/16 center of pin to top of piston

 

[jimmy77]

Use bronze bushings with 7 to 9 thousands over size to go in the pistons then freeze the bushings, heat pistons on gas grill and bushings will slide right in then take to machine shop to fit ristpins to bushings, thats the way i did mine.

 

[ugly UB]

did you still use the snap rings

 

[jimmy77]

yes i did

 

[ugly UB]

thanks