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head torque
Posted: Tue May 29, 2012 9:49 pm
by jothina
just fitted my head and tourqued down to 40 ftlb as per haynes instructions,
i,ve read on here about retorquing after the first heat cycle, ik take it thats after initial start up, warm up then when cool check torqueagain with wrench set at 40.
sorry if this seems a daft question but wanted to check i understood the procedure
john
Re: head torque
Posted: Tue May 29, 2012 9:53 pm
by aupickup
correct
Re: head torque
Posted: Tue May 29, 2012 9:55 pm
by bmcecosse
But you can safely go to 44 ft lbf. Then - reset the valve gaps..... 12 thou on inlets and 15 thou on exhausts.
Re: head torque
Posted: Tue May 29, 2012 10:02 pm
by jothina
thanks
Re: head torque
Posted: Tue May 29, 2012 10:22 pm
by mike.perry
You did set the smaller rocker shaft nuts to 25lbs/ft?
Re: head torque
Posted: Tue May 29, 2012 10:38 pm
by bmcecosse
Must have - cos they would strip/snap at 40..............
But they should of course be finally tightened down AFTER the head nuts have been torqued down. Before that they should just be nipped up lightly - and NOT used to pull down the rocker shaft pedestals.......
Re: head torque
Posted: Wed May 30, 2012 9:48 pm
by jothina
yes , i did the smaller ones at 25 after the big head ones
thanks
john
Re: head torque
Posted: Wed May 30, 2012 9:52 pm
by bmcecosse
10/10 Well done......