Ouch...I got problems

91Bird305

91Bird305

Club Member
600 easy miles later...
 

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Quote from Comp Cams tech bulletin about current oil blends causing flat tappet failure due to removal of certain components

"Comp reveals that today’s oils no longer contain many of the additives, such as zinc and manganese, that were once mixed in the oil to help the longevity of flat-tappet cams and other iron based engine components. While the lubricity of oil has changed due to changes in engine materials, Comp says it is also a direct result of EPA efforts to reduce environmental pollution."

Cant say that thats what happen to your motor, but everybody running flat tappet cams should be aware that the oils they have run for years are now formulated differently and are causing cam and other failures. Rotella T still contains these additives
 
strtracer said:
Quote from Comp Cams tech bulletin about current oil blends causing flat tappet failure due to removal of certain components

"Comp reveals that today’s oils no longer contain many of the additives, such as zinc and manganese, that were once mixed in the oil to help the longevity of flat-tappet cams and other iron based engine components. While the lubricity of oil has changed due to changes in engine materials, Comp says it is also a direct result of EPA efforts to reduce environmental pollution."

Cant say that thats what happen to your motor, but everybody running flat tappet cams should be aware that the oils they have run for years are now formulated differently and are causing cam and other failures. Rotella T still contains these additives
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Heard this too on a few other board. It's worth looking into.
 
Umm, you shouldn't be running your engine with adjustable "checking" pushrods. They look homemade with acorn nuts, and they're more than likely not heat treated and don't have the correct radius on the end to match up with the pushrod pocket in the rocker arm, which appears to have caused the wear pattern that you have.
 
MCM said:
Umm, you shouldn't be running your engine with adjustable "checking" pushrods. They look homemade with acorn nuts, and they're more than likely not heat treated and don't have the correct radius on the end to match up with the pushrod pocket in the rocker arm, which appears to have caused the wear pattern that you have.
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I've never seen an adjustable pushrod with an oiling hole either but can't tell in those pics if they have one...but perhaps those are adjustables that are made to be run? Not saying I'd do it but just a thought...

Hope you get her back running man...I'm sure it's just a minor setback.
 
I would certainly get a set of chromemoly 5/16 pushrods in the correct length, the next go around. Adjustable pushrods are nothing but trouble.
 
Uthinkso said:
I would certainly get a set of chromemoly 5/16 pushrods in the correct length, the next go around. Adjustable pushrods are nothing but trouble.
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Now I know. Never had anyone tell me differently until now. Figured when the machine shop did the heads and assembly that they would know what to do. Not saying the pushrods are to blame here but just explaining my reasoning behind the adj. pushrods. This time around...non adjustable.
Geoff, I will get with you when the time comes. Thanks
 
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