Timing belt install help!

[jemsoccer]

My next step in the rebuild is to put the timing belt on. The problem is that after setting the camshafts to the timing positions, the crank and oil sprockets do not line up exactly on their marks. It looks like it is a tooth off, but when I move it that one tooth, then it looks to be a tooth off in the oposite direction. A friend of mine said that if the head was milled, it would affect this. The specs are in my profile. With this said, should I have the marks before or after the timing marks on the engine block? (Advanced or retarded) Does this picture look like what I should go w/?

 

[19Eclipse90]

It looks like they are either both a tooth off or you need to rotate it all a bit counterclockwise -- but that all depends on how the cams are lined up. If the cams are lined up exactly right and that is how the crank and oil pump are, you need to do it again. If the cams are off a little bit, try rotating the motor to where the bottom end matches up exactly, check the cams and if they are on, you are set.

 

[silver bullit]

It would help if the car is in time and the crank timing mark lines up, cause it does not look like the crank is lined up right.

Milling the head should not affect the marks unless you take 1/4 inch off the head which you cant do.


Your crank pully is not lined with the timing mark

 

[jemsoccer]

It looks like they are either both a tooth off or you need to rotate it all a bit counterclockwise -- but that all depends on how the cams are lined up. If the cams are lined up exactly right and that is how the crank and oil pump are, you need to do it again. If the cams are off a little bit, try rotating the motor to where the bottom end matches up exactly, check the cams and if they are on, you are set.

From what I could tell, the cams were correct and no matter what way I did it, the crank and oil sprockets were off. The engine is sitting on a motor stand and I re-did the belt many times and always wound up w/ the same results as I stated. Does having the head decked affect the way the belt will line up?

 

[GVR4592]

Like somebody already said, you would have to remove a lot of material from the head to have that much of an effect on cam timing. I think you're probably lining up the cams incorrectly and that's throwing off your crankshaft marks. Are you using a straightedge of some type to check the marks on the cam gears? It can be a lot easier for inexperienced people to have some sort of reference point, like a straightedge, when lining up the cams. Have you seen the vfaq?

http://vfaq.com/mods/timingbelt-2G.html

 

[Laysher91]

It looks like your crank is off as well. Have you tried using two people to set the belt? It might help. What is your tensioning procedure? If you are doing it according to the manuals you shouldn't be having this much trouble.

 

[jemsoccer]

It looks like your crank is off as well. Have you tried using two people to set the belt? It might help. What is your tensioning procedure? If you are doing it according to the manuals you shouldn't be having this much trouble.

I am following the manual exactly as it says. I will check how my cams are lined up and see if maybe that's why I'm off. Thanks all!

 

[19Eclipse90]

The exhaust cam is the last one you want to loop the belt around. Do the bottom end first, then the intake cam and clamp it to the intake cam. The exhaust cam will want to turn CCW when you tension the belt, so compensate by turning it one extra tooth clockwise -- that means when the two cams look to be completely lined up, turn exhaust one more tooth, then put on your belt and clamp it. Keep trying til you get it right, good luck!

 

[Splitpi]

The exhaust cam is the last one you want to loop the belt around. Do the bottom end first, then the intake cam and clamp it to the intake cam. The exhaust cam will want to turn CCW when you tension the belt, so compensate by turning it one extra tooth clockwise -- that means when the two cams look to be completely lined up, turn exhaust one more tooth, then put on your belt and clamp it. Keep trying til you get it right, good luck!

This is what I do as 19Eclipse90 stated. It gets me the best result.

 

[jemsoccer]

Thanks for the help guys... I figured it out. I just had the cams a little off. Newbie / trying to do it at 1am mistake.

 

[BUCK]

19eclipse90 is on the right track... MORE at

http://www.dsmtuners.com/forums/pro...-lock-camshafts-place-change-timing-belt.html