Camshaft manual rotation - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
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post #1 of 4 (permalink) Old 06-29-2017, 09:49 PM Thread Starter
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Camshaft manual rotation

Hey all. Thanks for allowing me to join the forum.


Replacing the timing belt on '01 Intrepid 3.5. First time doing so on this engine.

Searched this forum, read exhaustively and have a good handle on the entire process (ok, I was through to belt removal then read)
Cam timing marks are advanced approx three teeth on passenger's side. One tooth on driver's side.

One thing I don't get is a comment I have seen several times stating that when aligning the timing marks on the cam sprockets

"make sure you rotate it BACK to position...and Not all the way around"

Why?

I haven't moved anything yet as the partially shredded belt is still in place and plan on shifting the crank 60 degrees off TDC after removing TB and prior to adjusting cams..



TIA
DW
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post #2 of 4 (permalink) Old 06-29-2017, 10:39 PM
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Maybe you meant the cams *lag*, are not advanced?

Some would say you deserved worse for not changing the timing belt long before now. *I'm* not saying that, but *some* would.

My guess on the remark about rotating back to position and not all the way around is they assume maybe you have crank at no. 1 TDC, in which case rotating the cams all the way around would collide the valves and pistons.

As long as you put the crank at 60 before removing the belt and moving the cams to position, and then rotating crank to no. 1 TDC (i.e., crank sprocket mark lined up with mark on oil pump), you should be OK to rotate the cams as much as you want. But, assuming the cams only moved those few teeth, the best move could be to put crank at no. 1 TDC, remove belt, then move cams to position, and, as they said, directly back to position - not all the way around. With belt on, only rotate engine clockwise (looking at from front). With belt off, direction doesn't matter.
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Last edited by peva; 06-29-2017 at 10:41 PM.
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post #3 of 4 (permalink) Old 06-29-2017, 11:46 PM Thread Starter
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Quote:
Originally Posted by peva View Post
Some would say you deserved worse for not changing the timing belt long before now. *I'm* not saying that, but *some* would.
I have no idea if the belt was previously changed.
Only had the car a month or so.
Excellent physical condition R/T for $200 (Canadian) with a "miss" as a project for my girlfriend.
When I looked under the hood while shopping there was an arc from one coil to the intake so I figured that was the miss.
Replaced the coil took it for a run and after what sounded like a nasty backfire it died on the highway.
No start. Towed home. Belt salad behind the covers but still partially intact.
Got a cheap belt to determine any damage. If things seem right I'll do the whole kit.

Anyhow. You have succinctly answered my question and I thank you very much peva

cheers
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post #4 of 4 (permalink) Old 06-30-2017, 06:44 AM
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You're welcome. I misread your meaning when you said first time changing the belt.
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