h22 waterpump install problem

[slammed4th gen]

ok i was installing a new waterpump one my h22a, and when i was trying to torque done the bolts, they kept breaking. i went to home depot and found some just like it and tried it and broke another ( when they broke, there was part of the thread sticking out of the block so with some plyers i twisted em out) but now the problem is on one of them, it gets tighter and tighter then sorta loose and tighter and thighter again. i pulled it back out and had some metal rings ( from the block) around the bolts. its seems that im going to have to rethread it , but has anyone else had any problems like this at all? i mean it seems like the bolts cant be torques at 108 ft/lbs (according to haynes) does anyone have a clue why the bolts would break when they arent even torqued all the way??? and help would be great cuz this is really ruining my weekend. thanx

[SoySauceCb7]

holy shit 108 ft lbs i highly doubt that especially since its an aluminum block, i thiink your over tightening them, its hould be around 40 ish max

[aero]

most likely 108 in/lbs, they dont need to be very tight.

[optimusprime]

I would not recomend getting bolts from home depot to fix this problem. They may have to be a special grade bolt. Plus around the water pump it gets real hot. It does sound like you may have to rethread the hole try to chase it with a tap and die set. make sure it is the same thread and bolt size.

[slammed4th gen]

i should have sed starting torqueing them to 108 i was only just over 40 when i stopped torqueing them. im just going to try to rethread the hole because there were only like a couple messed up threads. thanks for the replies