So yeah, the 944 engine is basically (for all intents and purposes) a 928 V8 cut in half, most of the engine parts have 928 part numbers (except the few things unique to the 944 Turbo). In doing this they really screwed up the routing of coolant through the head/block and slightly changed the gaskets. Unfortunetly what this causes is for the coolant to leak through the headgasket into two allen bolts which go through the head into the block at the front of the engine. Unless you permatex the living hell out of them… Well seeing as how I had never had the head of this perticular engine before, it was a crap shoot as to if this was going to be the dreaded problem with these bolts freezing up because of being filled with coolant and snapping off.
Needless to say, it had not been permatex’d and snapped off. So I spent a day heating and spraying it and let it sit and kept spraying it. Then I double nutted it on the inch or so still out of the block and tried to take what was left out, which is when it sheered off again, leaving me with half a thread and a snapped off bolt basically flush with the block. Now I need to take it somewhere and have someone get the damn thing out for me and possibily helicoil it. Sadly, if the block has to come out, the car will NOT be going back on the road this year.
Well, if you couldn’t get it using all your muscles, then it probably won’t comeout with an easy out extractor.
I’d say your next step is to drill a hole into the bolt and try an internal spline drive extractor with heat. After that you may have to just drill the hole bolt out and re thread it.
drill it out and run a tap down it to clean up the threads. Just dont use a drill bit bigger that the bolt that is in there now. Or you will lose the threads you have now and need a hellicoil.
get a nut that fits the threads
slap a copper (brake fitting) washer down over the “stud”
slap the nut on
MIG weld the nut on rock solid
throw a load of heat at the aluminium
drop a ice cube on the nut (shink the bolt)
crank your newly formed bolt out of place
seen it done to a row of broken head bolts … the idiot student turned them all the WRONG WAY, and bottomed the studs out in the block
he sheered 3 off himself, cranked 3 more in uber tight w/o breaking them, then went for help. the 3 uber tight ones snapped while the instructor tried to remove them, all the bolts he DIDNT touch came out like butter
one of the first 3 snapped off @ the head, and 3 vice grips and 6 hands was what it took to get it out :bloated:
