Re: How much torque on belly pump housing bolts?

Posted by Patrick HMD on August 11, 2013 at 14:38:22 from (75.16.97.8):

In Reply to: How much torque on belly pump housing bolts? posted by Patrick HMD on August 09, 2013 at 18:30:39:

Thanks for all the feedback folks. I finally removed the housing to have a look see. Everything looked in order. No cracks nowhere. The fact that I was engaging half the the thickness of the 1/2" bolt in the female thread was just too much for it to bear. That's the only logical explanation that I can come up with. I have always heard that the take up should be at least the thickness of the bolt itself to be safe. (common sense) Not so in this case, Dumb over sight on my part. I'll be looking for a 1/2" bottom tap to see if I can cut a few more threads inside that blind hole.

Another thing. The bolt was actually 6 7/8" long instead of the 7" as called for. So that just added to the problem. Good lesson learned here--check those store bought bolts. I will discard the lock washers on the 2 long bolts. Hopefully the copper washers with with a bead of silicone will prevent any further oil bleeding out at the top.

Patrick

'49M

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