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Old 04-27-2018, 06:48 AM
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smj999smj smj999smj is offline
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2006 Pathfinder
2003 Frontier King Cab
2003 Frontier KC SVE 4x4
 
Join Date: Jun 2012
Location: Prospect, VA
Posts: 1,866
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Quote:
Originally Posted by Max1 View Post
Also, when doing the timing chains and secondary tensioners on the 4.0 engine, if the camshaft tensioner plunger is not worn in its bore, there's no need to remove valve covers, because the secondary guides can be changed without removing entire unit. They can be bought separately.
The only reason one would need to remove the valve covers would be if they did not have the ring gear stopper. With the ring gear stopper holding the crank, the chains are used to hold the cam gears while the ca gear bolts are torqued. Without the ring gear stopper, the valve covers must be removed so a wrench can be put on the flats on the camshafts to hold it in place while the cam gear bolts are torqued.
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