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Old 12-17-2019   #25
richarde
 
Join Date: Sep 2012
Location: United Kingdom
Posts: 68
Default Re: Careful with that camshaft

After having degreed the camshaft with the sprocket pin in place, I use the following process:
1) Ensuring that the sprocket pin is in place with the sprocket washer and the camshaft sprocket bolt nipped up to around 50ft lbs, check if the camshaft timing pin J37326 will fit through the cap into the cam.
2) If the timing pin does not align with the cam, rotate the crank very slightly until it does align. Insert the timing pin to positively hold the cam from rotating.
3) Remove the camshaft sprocket bolt, clean the threads in the cam with a solvent to remove any oil etc and fit a new camshaft sprocket bolt, applying oil to the bolt flange only plus Loctite 262 to bolt threads only. Torque to spec (factory replacement bolt 19ft lbs plus 80 - 85 degrees) or Jerrys Gaskets ARP bolt 10090566 to 80ft Lbs.
4) To be very safe, you can also use a 0.020" strip of cardboard to fit between one of the temporary camshaft retaining caps and the cam, in order to further prevent any slight movement of the cam.
5) Remove the timing pin (and 0.020" strip of cardboard if used) and re-check timing.
__________________
Richard
1990, numbers 1821 and 2391
1821 - owned since Nov 2002, charcoal / Gray, Stainless headers, B&B system, 4.10's
2391 - owned since Jan 2019, Black / Black, have completed restoration. Jeal headers, Corsa system, 4.10's, Aluminum flywheel with Carolina clutch.
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