i started my timing belt job yesterday and got to the point where i had to remove the 6 Allen bolts on the crankshaft pulley. I tried and tried but ended out rounding out the first bolt that i tried to remove. I've tried many different techniques at this point but nothing seems to be even close to working.
Sprayed WD40 to hopefully help loosen them, then I tried the chisel and hammer method but it didn't work. Then I went out and bought an impact driver (the screwdriver version that you hammer), but I had no luck and ended up rounding it even more.
I tried to use wedge a T40 in there instead of the hex and same result, the bolt just wont budge.
I also went out and got the Irwin bolt extractor socket set but still nothing. the sockets are too wide to clear the small space between the Allen bolts and the big center 12pt socket.
I'm very stuck at this point, I don't need to preserve the bolt but i just need a way to get these out. I haven't even tried the other 5 bolts yet as I'm afraid of the same thing happening.
Any help on this subject is greatly appreciated, I feel useless getting stuck on this part of the job that should be pretty straightforward, thanks for reading.