I hate to post this twice but I trust the people in this forum more.

Iv been having trouble while getting the TB on once everything is set to tdc. It seems as soon as I put tension on the belt the crank will turn a few degrees. I finally have it close and still am iffy about it. Any siggestions to keep the crank from moving once I apply tension? The engine also has a 2 layer hg, could that be why the bottom end is a hair off?





Its hard to get an accurate picture of the oil pump marks.

 

change your cams?,,,,just a ?

 

No, they are stock cams.

 

i had the same problem when i first started messing with motors....what i do when i get the cams lined up befor i put the belt on i set the crank like an 1/8 inch past the mark then put the belt onmake sure the cams dont move then pull up on the tensioner and tighten then check marks hope this helps

 

Iv tried that as well. Still gets back into the same spot. Im not sure if its just the way im looking at it or what.

 

Some updated pics, I think this is as good as im going to get it.

 

Looks good to me, your not off far enough to be a whole tooth and that is the only posibility. Are you tensioning the belt properly?

 

To my knowledge I am. Iv never had an issue with tensioning a belt, this is the first time iv ran into trouble with the bottom end though.

 

Do you know if the head has been milled or if the block hes been decked at all? You mentioned that you are using a two layer headgasket. The thinner headgasket and milling or decking will definately throw off the mechanical TDC of the motor because it essentially shortens the overall height of the motor. This in turn makes the timing belt appear longer and retards TDC a couple degrees. This is where a good set of cam gears come in handy, which are needed to correct the timing and restore mechanical TDC. By advancing the cam gears a couple degrees you will compensate for the engines shorter overall height and move some of the belt over to the tensioner side and return the engine to the proper TDC position. Sorry if this confuses you, but I hope this helps you out.

 

Not far enough to be a tooth off on anything