car is a 2000 si with a 60 trim/ramhorn/10lbs/hondata s200

while putting gsr cams in 2 bolts broke in the cam holders, the threads were all gunked up with something

one was a 10mm all the way to the right on the intake cam and the other was a 12mm on the exhaust on the right next to the other 10mm's

tried drilling them and using an extractor, square spiral and left hand drill bits, none worked

now one has a broken easy out in it, no idea what to do, wtf will drill through that

an the other im about to just heli coil

any other ideas?

and can this be ran without replacing them since its only 2 bolts out of what 16? just so i could move the car somewhere easier to work on + more tools

 

You might have to pull the head and take it to a shop that can EDM them out.
Then just tap for heli-coils.

 

Been where you are man honestly. Broke the bolt for the tensioner pulley that goes into the block. Had to smash the extractor with a punch because they are hardened steel and nothing can drill thru it. You will have to do that and buy a new bolt for the helicoil...it's a pain in the *** trust me...took a month to do a timing belt because we couldnt figure out how to get the extractor that broke off out.

 

yeah we decided to just say screw it and pull the head

putting in some headstuds, fresh hg, new waterpump, timing belt, tb tensioner, cam seals, hondata IM gasket, putting in the rear hasport motor mount cuz we didnt yet lol

just gonna have the machine shop take care of the broken bolts

 

You might have to take the entire head apart all the way down to the valve springs. When i busted the tensioner pulley bolt in the block, the machine shop I took it too said I had to disassemble the whole block so it was bare so the machine could cut the bolt out.

 

bummer that sux.. i have broken a bolt also.. mine was in the very middle a 12mm one...

 

howd you get it out?

anyone ever run their motor while missing a bolt? i figure the cams will seize up or something altough i like to stay on the paranoid side so i dont blow anything up lol

 

yes i have learned my lesson there now i run a tap in everthing i take out, if it doesnt break on the way out

 

mine broke while i was taking it out..i tried to get it out but coulndt so its gonna stay broke for a while.. since mine is in the middle im gonna leave it but on the side ones i wudnt.. i havent started the car yet tho.. a kid i no ran his with like 3 of them broke and it was ok.. lol..