I have a 1985 Subaru with a 1.8 and not only did the timing belt break but the tensioner on the drivers side  came off. I have the tensioner but couldnt find the bolts. Any one have any idea what size or where I can find new bolts. Also Im assuming Im going to have to re time it so how do I do that? Any help with be greatly appreciated. Thanks

take the bolts out of the passengers side tensioner and match those up, they're the same.

12mm head M8x1.25

 

in my experience if that happens the bolts actually shear off and you'll have a remainder of a bolt stuck in the bolt holes.  have you looked yet?

you'll need to get those out first.

 

if so, high quality left handed drill bits are the best option and may spin them out.  start with a tiny hole, drill center, increase size.  if you're lucky it'll spin the stud out.

you'll need a right angle drill or drill attachment (cheap) to get it with the engine insitu.