Crank shaft pulley spacer bolt size?

[Al Campbell]

Does anyone know the size of the bolts on the spacer on the front of the crankshaft pulley? - Car is 1983 GTV6.

I was turning the engine over to clean up the timing marks on the pulley and noticed that there are only two bolts left. Hopefully it's fallen out - not sheared off.

Thanks in anticipation,
AL

[stradale]

13mm head, M8 1.25 thread,28mm length

[Al Campbell]

Thanks Sportiva. Had a look with an inspection mirror last night - the head of the bolt has sheared off. Thanks anyway.

[stradale]

Undo the other two bolts and pull off the spacer this might expose whats left of the bolt.
Sometimes you can turn them out easily with vice grips , pliers or any other suitable tool

[Al Campbell]

Good suggestion. Might work, but looks like there are only a few mm that might be left sticking out and given that the bolt has sheared , what is left is probably in there pretty tight (24-26mm of thread?) Lord knows how long it's been like that, could be years.

[stradale]

If the bolt has rusted it might be hard to undo, but if not then it should come out with a little WD40.
Most of the tension is against the head of a bolt when it is tightened, when the head breaks off the tension is released, so unless the thread is rusted or damaged [might be why the bolt head came off] I think it will probably come out with not to much trouble
cheers Glen