[Shotimes] one more question about 0 degrees BTDC

[BJamesjr@aol.com]

>If the 
>belt is off and the cam sprockets and crankshaft all at 
>their correct positions,

At their 12 oclock positions, some of the cams really want to move, probably 
one of the valves is pushing on a lobe enough to make it want to rotate.  
This means you may have to move the cam back into position yourself to get 
the belt back on it.  That's the advantage of the marks on the belt.  Once 
you get everything moved back into position and the belt on, you can stop and 
inspect what you have done.  If everything seems to line up ok, then you know 
you're right.

As far as double checking what you have done, you can remove the top cover, 
rotate the harmonic balancer so its line indicates TDC on the lower cover, 
then look to see where the marks on the cam gears are.  If they are right at 
12oclock then you're good.  If they are at 6oclock then you can rotate the 
crank one more revolution again stopping on TDC.  Now the cams should be 
right at 12oclock.  Unless your balancer has rotated on itself (which they 
can do since the outer part is connected to the inner part only by a ring of 
rubber), you can count on the lower gear being in the correct location.  Its 
a lot of work to remove the balancer and lower covers but if you have to, 
then you have to.