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long bolts in crankcase

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Brett72:
Hi, can anyone tell me if they have ever fitted a slightly longer bolt in the crankcase. I was just torquing down to do a plastigauge test and what is no.2 bolt on the diagrams will not tighten down. The bolts are M8 x 140 1.25 pitch. If i put the bolt in the top half of the casing without the bottom fitted it bites fine and i think it would torque down ok.  I was thinking about putting a bolt 145mm long in and see what happens. Has anyone got any thoughts on this? Thanks in advance

K2-K6:
Can you measure the depth of the hole in top case with the "wrong" end of vernier caliper, then stick the bolt through the lower case to measure how much is going to go into the upper case, then compare the two to assess.

Brett72:
Great idea Jedi. Thanks for the idea. I will give it a go in the morning

K2-K6:
To emphasize the need for caution as most of the holes on these engines will have something very close by in proximity.

See what you get and if you've clearance room for using alternative. 

Brett72:
Thanks for the advice

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