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Apr 30, 2017 | 06:12 PM

#13 (permalink)

onehundred80

Senior Member

Joined: Apr 2006

Posts: 25,432

Likes: 647

From: Ontario

Re: water pump torque spec

Quote:

Originally Posted by Chrisjlyon

Damn wish I had searched for this thread two days ago. I was mislead by the service manual torque and ended up snapping two bolts installing my new pump. Oh I could get out but the other no luck. It's basically ruined that boot hole.

I think that the torque value for the 8mm bolt is too high, it would be OK for a 10mm bolt in aluminum. I think the value for the 8mm bolt should be about 16 - 18 Ft.Lbs. I studied various charts and came up with those figures. I do not think the class of the bolt should alter the torque value in our aluminum block.

You were lucky the 6mm bolt broke instead of stripping the aluminum thread.

In matters like this I think caution should be used.

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