Chain tensioner guards (for non-oil fed)

[mada]

Just got my 911 SC. Love the car!

The fellah I bough it from had new tensioners put in and wasn't too hip to the oil fed craze and just put in originall/new tensioners.

They are brand new and want to put the safety collars on for some cheap insurance.

Can anyone step-by-step walk me through putting these things on?

Thanks!

[kstylianos]

Mada,

To access the chain tensioner covers, the engine sheet metal infront of the covers will need to be removed, muffler dropped and the engine dropped a bit as well. This will give you the clearance needed to remove the cam chain covers, exposing the tensioners. After that its just slip on the safety collars and button things back up. Check 101 projects for instructions for installing the carrera chain tensioners. Waynes gives a more in depth description on items that need to be removed/lowered for access, I think I covered the majors.

[Rot 911]

Here's a picture of one of them in place:

[GIBSON]

Red loctite on the two screws holding the collar in place. Spin the motor and watch the chain tensioner piston move up and down through it's range of motion, then install the guard with the piston nearly fully extended and place the guard near the top of the piston (so there is room for the piston to move up and down and not have the guard interfere with it's travel.) If the tensioner fails it will still be held far enough out to keep some pressure on the chain.
The main concern with tensioner guards is the guard coming off.
You can minimize this problem by torquing the two screws evenly and using loctite.

[Wayne 962]

Rule of thumb is at least and 1/8th inch of travel. Remember, spinning the motor over when it's cold is not the same as a hot, running, dynamic system.

-Wayne

[mada]

"Rule of thumb is at least and 1/8th inch of travel. Remember, spinning the motor over when it's cold is not the same as a hot, running, dynamic system. "
-Wayne


Can you elaborate on this for me? I'm a newbie with basic skills