Cam info - Chevelle Tech
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post #1 of 15 (permalink) Old Apr 8th, 17, 11:53 PM Thread Starter
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Cam info

Is there anyway to tell what brand, spec/info of cam is in a engine without removing or taking apart the top end of the engine? The engine was built a few years back and all the paperwork on it is lost.
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post #2 of 15 (permalink) Old Apr 9th, 17, 2:12 AM
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Re: Cam info

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Originally Posted by WOODY367 View Post
Is there anyway to tell what brand, spec/info of cam is in a engine without removing or taking apart the top end of the engine? The engine was built a few years back and all the paperwork on it is lost.

You could put a drop gauge on the rocker tip and roll the motor over with a crank socket and find out the lift of the exhaust and intake valves, but this will only work on a solid cam motor as a hydraulic cam will bleed the lifter down and not give you a true reading. You could then take that to the manufacturers web page and get a good idea what it is. This is assuming you know who is the manufacturer and if it is a solid cam and roller or flat tappet.
You could also get a good idea using a degree wheel and checking valve timing, but that would be pretty involved.
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post #3 of 15 (permalink) Old Apr 9th, 17, 3:32 AM Thread Starter
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Re: Cam info

Not tht I want to do this but if I remove the timing cover and gear would there be info on the front of the cam? Drpping the oil pan would be the big pain.
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post #4 of 15 (permalink) Old Apr 9th, 17, 3:40 AM
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Re: Cam info

Is there a specific reason you need to know? Are you unhappy with the performance and plan on changing the cam? If you are happy with the way it runs and are just curious, it might be best just leaving it a mystery.

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post #5 of 15 (permalink) Old Apr 9th, 17, 4:41 AM Thread Starter
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Re: Cam info

Was told it was 1 size over stock but seems real lumppy at idle. Als can only time it by ear as it would be soo far advanced, not sure if its off a tooth.Also would like the spec to pick out a torque converter as I an=m switching from a 4 speed to a th350.
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post #6 of 15 (permalink) Old Apr 9th, 17, 11:05 AM
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Re: Cam info

do you have the right pointer on the timing cover?

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post #7 of 15 (permalink) Old Apr 9th, 17, 11:44 AM Thread Starter
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Re: Cam info

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do you have the right pointer on the timing cover?
Yes and even used a piston stop to make sure.
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post #8 of 15 (permalink) Old Apr 9th, 17, 12:08 PM
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Re: Cam info

You could remove the rockers on #1 cyl and degree the cam. That will tell you everything you need to know.

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post #9 of 15 (permalink) Old Apr 9th, 17, 4:13 PM
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Re: Cam info

Pull the timing cover it can be done and reinstalled witout dropping the pan. Or take the intake off use a solid lifter and measure.

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post #10 of 15 (permalink) Old Apr 9th, 17, 5:52 PM Thread Starter
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Re: Cam info

Would all the info be on the face of the cam right behind the timing gear?
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post #11 of 15 (permalink) Old Apr 9th, 17, 8:21 PM
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Re: Cam info

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Would all the info be on the face of the cam right behind the timing gear?
Could be on the back of the cam.

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post #12 of 15 (permalink) Old Apr 9th, 17, 9:05 PM
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Quote:
Originally Posted by WOODY367 View Post
Would all the info be on the face of the cam right behind the timing gear?
When I went through the same thing the info was on the back of the cam. Might depend on the brand though
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post #13 of 15 (permalink) Old Apr 13th, 17, 1:54 PM
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Re: Cam info

It is easier to pull the intake and valve covers in my book then measure the lift

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post #14 of 15 (permalink) Old Apr 16th, 17, 2:18 AM
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Re: Cam info

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You could remove the rockers on #1 cyl and degree the cam. That will tell you everything you need to know.
x2
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post #15 of 15 (permalink) Old Apr 16th, 17, 2:39 AM
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Re: Cam info

Let me see if understand the situation: you can't time the motor, haven't tried seating the distributor correctly one tooth in either direction....but you want to pull the timing cover off to see what cam is in there?

Always start with the simple stuff first. If you can't time the motor, it's likely you are a tooth off. Fix that FIRST.

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