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Probably a dumb Cam question

Started by Cudalbs, April 16, 2017, 10:45:16 AM

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Cudalbs

I am wondering if their is any way to identify what cam I have in my 340? I got the car 18 years ago and was told a little more cam in it and about 5000 miles on a rebuild. I will be pulling my motor later this year,(after driving season) because I have a small oil leak that I can't seem to find with the motor in the he car but it seems to be behind the flywheel somewhere. At any rate it seems like this would be a good time to do any other projects on the motor that need doing.......cam, heads, etc. Just kicking some ideas around for now but it would be nice to know what's in there now. I don't know if that is possible without taking it apart. Thanks for any advice.
"Love those round taillight cars"

Cuda Cody

Not that I'm aware of?   :notsure:  Pretty much have to have the build specs or receipt. 

Cudalbs

Thanks Cody, that's what I thought. Just hoping their might be some secret way to find out with all the great minds on this site.
"Love those round taillight cars"


1 Wild R/T

V blocks, a degree wheel,  a dial indicator chart an intake & exhaust lobe... Look for markings to ID the manufacturer.... Maybe... But hardly worth the effort...

Chryco Psycho

check the oil pressure sending unit or that area for the leak

usraptor

Once you take your engine out and remove the cam, there will usually be a manufacture part No. stamped on the end that you can then look up.  Not always, but usually. Good luck with that pesky oil leak.  I agree with Chryco Psycho, check the oil pressure sending unit for leaks, both the unit itself and make sure it's tight in the block.

jimynick

As 1wild rt says, a degree wheel and a magnetic base dial indicator and piston stop would be required. You'd use the piston stop to determine TDC and then mount and calibrate the degree wheel to reflect that and then you're into measuring the degree at which the valve events occur and their duration while measuring the lobe lift with the dial indicator and multiplying by the rocker ratio to give you the lift. You'd need to note the difference in intake and exhaust events to determine overlap as well. Doable, but a PITA and, as mentioned, probably note worth the effort. Just my  :alan2cents:
In the immortal words of Jimmy Scott- "pace yourself!"


1 Wild R/T

Quote from: usraptor on April 16, 2017, 11:51:10 AM
Once you take your engine out and remove the cam, there will usually be a manufacture part No. stamped on the end that you can then look up.  Not always, but usually. Good luck with that pesky oil leak.  I agree with Chryco Psycho, check the oil pressure sending unit for leaks, both the unit itself and make sure it's tight in the block.

I've had a lot of cams in my hands & while some are very few are marked..... And if it is marked often it's a code that normal people can't read...

Cudalbs

Quote from: jimynick on April 16, 2017, 08:37:15 PM
As 1wild rt says, a degree wheel and a magnetic base dial indicator and piston stop would be required. You'd use the piston stop to determine TDC and then mount and calibrate the degree wheel to reflect that and then you're into measuring the degree at which the valve events occur and their duration while measuring the lobe lift with the dial indicator and multiplying by the rocker ratio to give you the lift. You'd need to note the difference in intake and exhaust events to determine overlap as well. Doable, but a PITA and, as mentioned, probably note worth the effort. Just my  :alan2cents:

Wow jimmynick, it was over my head when wild rt  first mentioned it........after that explanation I'm positive I will just wait until I have the motor out and the cam is n hand.  :wrenching: Thank you guys for taking the time to humor me.
"Love those round taillight cars"