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getting that main crank bolt off!! 700

Just trying to find top dead center, by looking in the vavle cover.

As you probably know, the important thing about the rope trick is to do it with the valves closed, which is why TDC for #1 is stressed. There are 4 things related to the (valves closed) #1TDC (assuming timing belt is correctly installed):

A - The front two cam lobes will be up and facing away from each other.

B - There should also be a mark on the cam sprocket that aligns with a mark on the back half of the belt cover.

C - The #1 piston will be at the top (poke something thru plug hole).

D - The Timing Mark on the balancer (pulley) should align with the 0° reference on the lower belt cover, which I assume is installed—since you have the pulley back in place.

IMO, the cam lobe position is important, because #1 and #4 pistons move up and down together. This means that conditions C and D will also occur for TDC compression on the #4 piston.

But in that case, the front two cam lobes would be pointing down and toward each other, opening valves at the beginning of the #1 exhaust stroke.

P.S. The bolt tightening torque spec is 44 ft lb, then an additional 60°.

--
Bruce Young
'93 940-NA (current) — 240s (one V8) — 140s — 122s — since '63.






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