Cam size?
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Joined: Feb 2010
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Cam size?
Dose anyone if there is a way to find out what cam is in a car? I put a cam in my 88 years ago and i can not find any paper work on what I put in. I have the heads off now and im going to replace the springs but not sure what cam is in the car.
any help???
Thanks
any help???
Thanks
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Hate to be the bearer of bad news and have to say this, but if you have to ask, it's probably much too complicated for you to handle.
Don't feel too bad about that though, I doubt there are many guys on this or other forums who could do it either. It's easy to say, but a LOT harder to actually DO.
It involves many of the same steps you'd have to take to degree in the camshaft, but MORE - Positive stop indicator, finding absolute top dead center, installing a degree wheel and a dial indicator, finding lobe lift or - as an alternative valve lift - , finding duration at .050" and at .006". .006" would only be a guess for where advertised duration was measured. That measurement point could be at many other lobe lift points.
You'd have to do it on both the intake and exhaust lobes too, not just the intake. Then you'd have to crunch the numbers to determine the Lobe Separation Angle.
There's more to it, but I think you get the point.
An easier way is to remove the cam and take it to a machine shop that has a cam checker - I believe it's called a Cam Doctor. For about $25 the shop can give you a computer print-out on all the cam specs.
Think about this too, with the engine in car, reading the degree wheel with accuracy will be a problem. If you decide to pull the cam to check for any identifying numbers on the rear of the cam and if that doesn't tell you what you want to know, you might as well find a shop with a Cam Doctor (if that's its name).
Jake
Don't feel too bad about that though, I doubt there are many guys on this or other forums who could do it either. It's easy to say, but a LOT harder to actually DO.
It involves many of the same steps you'd have to take to degree in the camshaft, but MORE - Positive stop indicator, finding absolute top dead center, installing a degree wheel and a dial indicator, finding lobe lift or - as an alternative valve lift - , finding duration at .050" and at .006". .006" would only be a guess for where advertised duration was measured. That measurement point could be at many other lobe lift points.
You'd have to do it on both the intake and exhaust lobes too, not just the intake. Then you'd have to crunch the numbers to determine the Lobe Separation Angle.
There's more to it, but I think you get the point.
An easier way is to remove the cam and take it to a machine shop that has a cam checker - I believe it's called a Cam Doctor. For about $25 the shop can give you a computer print-out on all the cam specs.
Think about this too, with the engine in car, reading the degree wheel with accuracy will be a problem. If you decide to pull the cam to check for any identifying numbers on the rear of the cam and if that doesn't tell you what you want to know, you might as well find a shop with a Cam Doctor (if that's its name).
Jake
