Cliff's Quadrajet Parts and Rebuild Kits

General Category => Quadrajet Carb Talk and Tips => Topic started by: Mr.Pontiac on March 18, 2020, 07:10:06 PM

Title: 7027262 power piston problem, need advice
Post by: Mr.Pontiac on March 18, 2020, 07:10:06 PM

Power piston length is 1.950 with.340 o.d.,believed to be factory unit, I bought your white retaining repair bushings earlier. Don`t fit  bore on 67,s.. I also bought steel sleeve that goes around power piston bore to hold down power piston. When installed power piston is coming up to far and with new metering rods I just bought from you are coming out of the jets. I know there was a metal sleeve that goes downinside with power piston. I don`t have one. What should I do to make it work.

Title: Re: 7027262 power piston problem, need advice
Post by: Cliff Ruggles on March 18, 2020, 08:52:17 PM

They didn't start using a plastic bushing to retain the power piston until 1968. 

I have the other style retainers for the early carbs that stop the travel of the power piston flush wit the top of the bore.....

Title: Re: 7027262 power piston problem, need advice
Post by: Mr.Pontiac on March 19, 2020, 10:40:12 AM

IS it the steel one that wraps around the power piston bore with 2 ears on it. I have that one I bought from you before. Yes power piston comes up flush with bore but the metering rods you sent me for the 67 are sticking out of the jets.? I mic,ed the length when I removed it at 1.950, ; Can I send you a picture please. Rich

Title: Re: 7027262 power piston problem, need advice
Post by: Mr.Pontiac on March 19, 2020, 11:46:31 AM

I must of thru some 68 pp in with 67 stuff, searching for the shorter 67 one. Do you have one for sale?

Title: Re: 7027262 power piston problem, need advice
Post by: Cliff Ruggles on March 20, 2020, 03:47:36 AM

Measure the length of the rods.  Send pics to:

cliffshp@embarqmail.com