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Post Info TOPIC: 261 Cam & Lifters


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261 Cam & Lifters


Hi all, its been awhile since I have posted on this site. I have signed up again on Canadian Poncho. I have relocated from Calgary AB, to Pine Falls MB for retirement and have been away from this site for some time. I am having intermittent lifter noise (one lifter only). Have adjusted several times, replaced suspect lifter, etc. I am considering replacing all lifters and possibly camshaft. I will check all these parts this fall. Does anyone have an engine parts catalogue for a 1960 Pontiac Strato-Chief. 261 engine, Powerglide trans.? I am wondering what the original part numbers are for the lifters and camshaft? Any help is appreciated.

Thanks, Jake



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Poncho Master!

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Welcome back!

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Cliff

Done Hurryin

 

 



Poncho Master!

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how much have you been driving it, if not much regular driving, a bunch of highway driving may help settle things down?

I'd be tempted to try synthetic oil for say 500 miles or so, it will clean out things. Does your 261 have an oil filter?

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63 Pariesienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC. Parting out a 63 Parisienne convertible.

Mahone Bay, NS Still not old enough to need an automatic



Poncho Master!

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You have a single lifter that is getting some air trapped in it causing the lifter noise. There is a cure by drilling a small bleed hole in the lifter. If the car runs good and has a lot of power I would just run straight 30 oil with a can of general motors EOS additive. My 55 261 has the same noise on occasion and I just let it idle until the lifter bleeds down and gets the air out. If the engine is low on oil it seems to happen more frequently. Google 235/ 261 lifter repair. The person who wrote the article shows drilling the hole in new lifters before installation as the lifter noise occurs even with new lifters.

Al

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Newbie

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Thanks for your replies. I have been driving at least once a week. Did a long drive (4 hours one way) and back. The lifter would act up highway driving about 65 MPH. When stopped and started back up it would settle down (like Taylor55) and no issue for a long time. I just started using CAM Oil 15W40 made for flat tappet engines. Adjusted lifters one more time with car running and hot. Will see what happens from now on. I have read the articles on lifter repair and push rod mods. All makes sense, may try that if necessary. I do not have the oil filter installed. There are aftermarket lifters that have a hole in the top of the push rod seat. According to articles if you have lifters with the hole, you cut a grove into the push rod and that will allow for the air to escape.

Jake

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