1990 Volvo 740 8V motor - crankshaft pulley bolt & Fuel line

[GSmith]

Good Evening,

Does anyone know the size of the bolt head on the crankshaft pulley? I'm supposed to turn the pulley to line up the timing belt, etc. when I remove the belt to take the head off (I'm doing the head gasket), but I don't know what size the bolt head is. I know it's larger than 19mm (the largest socket I have in metric), so if someone has any ideas I'd be most grateful.

Also, I've relieved all the fuel pressure from the line, but when I try to remove the line to fuel rail, it really won't budge. I've got the right size wrenches, so I'm assuming I just need to soak it in WD-40 since it's 19 years old, but if anyone else has experience removing that line I'd be glad to hear about it.

Thanks!
GSmith

[billofdurham]

The crankshaft bolt is 24mm.

I haven't had this problem with the fuel line so can only say use the WD40 letting it soak in for a good while before trying again.

Bill.

[GSmith]

Thanks, Bill.

I now need to know how to get the lower half of the timing belt cover off without removing the crankshaft pulley so I can see the lower timing marks. My timing marks are lined up on the camshaft, but I want to make sure the lower marks are okay. I loosened the two bolts I could find, but I still can't get the lower cover off. Anyone?

[GSmith]

Scratch that last one, I can see the marks.

However, I'm trying to loosen the timing belt or something so I can get the head off the block. The camshaft pulley nut won't budge, so I can't pull the belt there. Is there any way to get the head off without removing the camshaft pulley?

[billofdurham]

You don't need to remove the timing belt completely to take off the head.

The attachment tells you how to do this:

740 Cylinder Head.pdf

(648.96 KiB) Downloaded 245 times

Bill.

[GSmith]

Thanks, Bill! This looks like a slightly revised version of the file I have and it helps with the whole belt tensioner issue.

Thanks again.