Quick question on timing chain guides!

[Cmarris]

Got a 98 explorer with a 4.0 sohc. Just finished doing all guides and tensioner for timing chains. I noticed when I turn the engine over by hand the rear tensioner gets pushed in then snaps back out. The front one gets pushed in a bit and goes back out as well. I was told this was normal on this engine do to no oil pressure on the tensioners. Is this correct?

 

[boominXplorer]

Yes you are right. Without oil pressure in the tensioners the cam will jump forward between lobes compressing the tensioner and put the chain slack on the other side.

 

[Flash]

Now you know why the chain guides get smashed when the tensioner fails.