Timing Chain Tension

Reply Subscribe

Thread Tools

Search this Thread

Oct 28, 2013 | 08:19 AM

fishnowworknever

Thread Starter

New User

Joined: Oct 2013

Posts: 24

Likes: 0

Timing Chain Tension

I'm wondering how much tension should be on the timing chain after not driving the truck for a week or so? I have the cam/valve covers off and notice slack on the timing chain. Is this normal behavior since the tensioners rely on oil pressure? I removed the VCT solenoid and oil did come out of the hole in the head...did that relieve pressure on that cam phaser and loosen the chain some?

Is there any way to know they need to be replaced without removing the front cover?

Is that slack in the chain normal?

Name: mII0Ppr.jpg
Views: 1056
Size: 793.5 KB

Name: mII0Ppr.jpg
Views: 1056
Size: 793.5 KB

Thanks

Oct 28, 2013 | 11:44 AM

70f100longbed

Fleet Mechanic

Joined: Aug 2002

Posts: 1,899

Likes: 29

From: Raleigh USA

That's normal. You have a valve that's trying to close and the spring pressure is turning the cam against the tensioner.