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Posted: Thu Jan 19, 2006 6:33 pm
by bigginger
Wait until a stud shears just inside the block... :-(

Posted: Fri Jan 20, 2006 2:23 pm
by bmcecosse
Regular maintenance - that's the thing. Never had a stud shear in 40 years of A series emgines ! And I have removed a LOT of heads. If the nut's not for turning, find out why, and fix it - don't just heave on it.

Posted: Fri Jan 20, 2006 2:51 pm
by bigginger
Wise, wise words (though rather obvious), I'm sure. More to the point, fit new studs before doing up the head nots to the specified torque.

Posted: Fri Jan 20, 2006 4:30 pm
by Kevin
head nots
Andrew I bet that misspelling was intended :wink:

Posted: Fri Jan 20, 2006 10:24 pm
by bigginger
Nope - guilty as, um. suspected :oops:

Posted: Sat Jan 21, 2006 2:05 pm
by bmcecosse
New studs cost a small fortune - the later studs have a little 'dimple' on top, and these are reckoned to be stronger. It's also a good idea to put thick washers under the head nuts - BMC used to sell these as a 'Special Tuning' part for Competition use - but any thick washer will do just fine. And the threads should be lightly oiled - all this allows the nuts to be pulled down to the torque setting without twisting the stud unduly.