I just replaced the head gasket in my '86 4Runner with a 22re. I'm having some trouble getting the timing chain sprocket back into position on the camshaft. It seems like the chain is suddenly too short to reach the camshaft. I've already torqued the head bolts. The alignment tab is lined up right where it should be, so I'm guessing that neither the cam nor the crankshaft have moved while they were separated, but the sprocket just won't seat onto the end of the cam. Any suggestions?

Thanks.

My '86 4Runner went to the bone-yard November 29, 2004 at 10am after roughly 430,000 miles on the original engine and transmission. :-( Looking for something else to wheel in...