Timing Chain Install
 

Hi all,

Looking for a little advice and knowledge regarding installing new timing chains into 911 3.0 motor. The engine case is intact, and the chains have the master link. I cut the original chains with a grinder and removed. I saw afterward the Wayne had recommended to connect the new chain to the old one and pull through. Makes sense, but to late for me. Anyone else face this situation and what did you find that helped feed the new chains into the motor?

Thanks for you help,

Gary
SmileWavy

I was always told that when the chains are worn out so generally is the engine.
Bruce

Engine top end rebuild project. Engine is in great shape. Putting it back together.
Would appreciate any tips or advice on how to do this.
Thanks,
Gary

New timing chain install.........
 

Gary,

I guess you still have your motor on an engine stand and planning to replace old worn out timing chain? You could connect the new timing chain with the old one and thread it through the engine. One side at a time. You have to re-check the cam timing setting if you have done it with old timing chain. Using a mechanical or solid tensioner would give you more consistent readings for the cam timing. The lesser the slack on the timing chain, the closer are your measurement readings.

Tony

To feed chains through a case where the sprocket is deep inside (like on motorcycles) I use a piece of shirt cardboard or similar.
I feed the cardboard into the dark (LOL) and let it wrap around the sprocket so that the width of the cardboard is enough to cover the teeth...then feed the chain in (on top of the cardboard) until it wraps around the sprocket...them remove the cardboard and let the chain sit on the sprocket.
Doing it this way...you don;t have to "shuck" the individual links around the sprocket.
Make sure the master link clip is set with the closed end facing the direction of chain travel.
Have fun.
Bob

Make sure the master link clip is set with the closed end facing the direction of chain travel..
I can't visualize the above statement.
Can you describe a little further Bob? Or perhaps a source or link so I can visualize the master link position for each side of the motor?
Thanks again for all of your input and feedback.
Gary

Ah ha. I get it now. Thanks!

If the chains are worn enough to require replacement, so are the sprockets, generally speaking .................................

The Cap'n

That's what I found when I went to change my chains last year - the new chains didn't fit nice over the old cam sprocket, so I decided to skip replacing them until rebuild time. Instead I just clearanced the cam housing a little to give the idler sprocket more room :-)

Chuck.H
'89 TurboLookTarga, 377k miles

Yep gents,

Engine is apart, cams removed, old sprockets and chains thrown out and new ones in boxes waiting for install. I am doing the chain tension upgrade as well.

Thanks,

Gary