General Category > Quadrajet Carb Talk and Tips

White power piston retainers, o.d. To big?

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Mr.Pontiac:
7029263 power piston bore, I have 4 from previous kits, all to bid o.d. Will not fit. Anybody else going thru this? Please look into this.

Cliff Ruggles:
They are "interference" fit so go in with some effort.  Never had any issues getting them in. 

Take a pocket knife and chamfer the lower edge a little more.  On the ones I sell I've already removed the sharp edge and chamfered them a bit, but sometimes they need a little more help.....

Mr.Pontiac:
I am micing bore at .380 plastic bushings .392, going to be a real tight fit

quadrajam:
Out of curiosity I went out to the shop and installed one of
Cliffs PP retainers in a 17084226 casting that was laying around.
As usual it's tight but it fits.
There is a step at the top of the bore where the retainer fits
that is 0.392 inch. Check that the stepped area is not occupied
with part of the old retainer.  ...????

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