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Conrod bolts 4.0 rv8
Posted: Thu Jan 23, 2014 9:44 am
by wangie46
Been searching and getting different views, do the con rod bolts need to be replaced on the 4.0/4.6 gems rv8 or can they be reused?
Posted: Thu Jan 23, 2014 6:17 pm
by ChrisJC
I buy new. They are angle tightened, which means they are stretched.
Chris.
Posted: Fri Jan 24, 2014 12:09 pm
by SuperV8
Every bolt stretches when it is tightened up. The question is how much and if it goes past it's elastic yield point.
Just because a bolt is torqued to angle doesn't automatically mean the are tightened past their yield point. Torque the bolt by an angle is generally more accurate because your mostly taking out the variable of friction.
I have re-used con-rod bolts on several engines with no concerns.
Tom.
Posted: Sat Jan 25, 2014 4:08 pm
by bigaldart
Unless you like building engines a LOT! Change them and upgrade if at all possible. There is no more crucial fastener in the engine when it comes to the damage a failure can cause. They are cheap enough especially compared to the cost of one letting go.
Alan