Cam Problems

[VintageMusclecar]

What brand is(was) the cam and lifters?

How much spring pressure on the heads?

Eric

[kwhizz]

It was a OEM plain old 360H.P. Hydraulic cam with stock springs............

Ken

[3macs1]

Hi Ken:
Is the block a 1966 casting??

[VintageMusclecar]

What brand were the lifters?

What was used for assembly lube, the red "taco sauce" or moly paste?

Did any of the lifters go into their bores tight?

If I may offer a tip for future reference...during mock-up I always use a brake cylinder hone and lightly "kiss" the lifter bores to make sure there aren't any boogers or left-over varnish that can hang the lifters up in their bores and keep them from rotating during operation.



If the lifter can't spin it will go flat.

Eric

[kwhizz]

It is the original 66 engine in the car with grooved Rear Cam journal...........
Eric.....I didn't put the Engine together so I can't answer those questions, but it was a detail oriented shop that put it together this time.......No matter what.....It's my problem.......Again

Ken

[Charley Lillard]

I think it was the carbs fault. Who rebuilt it ? :-)

[3macs1]

Hi Ken:
Having the 3/16" wide X 7/64" groove in the rear cam journal is only half of the correct set up for 65/66 BBC from what I can remember.Please correct me guys if I am wrong since it has been many years and I am only going by memory. It has been a few years since I rebuilt a 66 engine. You also have to make sure you have the old style grooved rear cam bearing also and not the 67 and up flat one. The old style has 3 feed holes to supply the cam journals and the two lifter galley passeges vs one hole on the flat 67 and up style. You can use a flat If I recall correctly but as I said it would have had to be soldered and redrilled special for the 66 which I would be suprised the engine overhaul shop did. To me it sounds like the rear cam bearing may not be the old 66 style. If so, you will get some oil but not enough and end up losing the cam, etc.
Do you know if the rear cam bearing was grooved also with the cam.
Joe

[budnate]

Dang..Ken that is terrible..did ya sit down and cry a little I think I would have after all this...

I am sure you double checked but Mac is right on the groove deal..did YOU lay eyes on the right bearing in the back?? the cam should have been grooved already if its a factory replacement piece.

I had similar deal years ago, truly tests your love for the car.

Mark a GTO guy I know does your method and claims it works fine as well...I set them a tick above 2k and let them go and lightly rpm up a little and back to the throttle stop at 2k in 3/5 min intervals, but have not broke a new came in lately and have been watching everyone under the sun have problems...my used cam stash is looking really good about now.