i need more info.

 

get an adjustable cam gear it should help.. the shop charges a lot more the more they have to pull off your surfaces to beware and my friend in his 4g63 throws more than 30 psi through the motor with a cometic.. if your surfaces suck your seal will suck..

 

how do you know for sure how much to adjust the cam gear ?


is there some way of making sure its dead on ?

cam degreeing ? i of course have no idea how to do this.

 

I know, I'm godly, you haven't researched.

 

i have. i found these two to be the most helpful http://www.webcamshafts.com/ and http://www.iskycams.com/degreeing.php but the lack of pics pwns me.

do i need this ?




how do you find the TDC with the head on the block w/o using the timing marks ? how accurate is the socket extension ?

do you have any better write ups ?


thanks for helping so far.

 

you can always thread a compression tester fitting into the head, stick some clear tube on the end. find where you think you have tdc, pour oil in the tube. rotate the cam around a bit, wherever the highest point of oil is in the tube.. is tdc.

 

or just pop a small threaded rod in, much easier...Rotate till the rod reaches peak height..that's how i've always done it, and it's always dead on.

 

you mean crank, right ? sounds easy enough, ill give it a shot tomorrow.

i use a medium size socket extension. the problem i see with it is once you get around TDC piston has some "hang time" sort a speak. its very minimal but im paranoid.

 

No need for all of that crazyness. First figure out how much you are going to be milling off in total. Now think of the head sitting that much closer to the crank. Now you need to think about how the belt spins. Imagine the left side of the belt pulling down which spins the cam gears. Now that the head is x amount closer the belt is going to be x amount too long on that side. Now you need to find out the diameter of the cam gear so you can translate this difference in length to a difference in degrees of camshaft position.

 

my math isnt great. mind helping me ?



shaving of .039"(.99060mm) of the head with 114mm cam gear.