Pulling VarioCam actuators

[BYprodriver]

Great work! You didn't post your cars mileage but unless it's under 50K the cam chain wear pads probably need to be replaced with the longer wearing wear pads. this will make the engine run much smoother especially at high rpms.

[Gary_d]

Thanks BY.
It's at 120k, and I bought it at 101k with no documentation (Porsche dealer trade in), no way to know what was done or not. That's one of the reasons I did the IMS bearing, just felt better knowing it was taken care of.
That's why I figure it'll be a winter project to redo the timing chain end of it. I'll feel better knowing it's right.
I've always specialized mostly in British cars and motorcycles (and Volkswagens) this car has opened a whole new world of complications! Rule of thumb for the British is to send a crack team of engineers around the world to discover an oil leak and design a vehicle around it.
My 911 has never been a problem over 15 years, everything is fairly simple (tongue firmly implanted in cheek)!
Good thing I like a challenge!

[Meir]

Hi Gary.
It will be great if you will document the process and post it here.

[Gilles]

Originally Posted by BYprodriver

Great work! You didn't post your cars mileage but unless it's under 50K the cam chain wear pads probably need to be replaced with the longer wearing wear pads. this will make the engine run much smoother especially at high rpms.

BYprodriver:

My 07 CS is getting closer to the 60k mark and it's running great, but I was not aware the the cam chain wear pads should be replace around the 50k mark.

It seems that the procedure to replace the cam chain wear pads are the same steps that are used to replaced the IMS: mentioned here numerous times "lock the crank at TDC, lock the cams (with the special tool), then remove the variocam actuators and replace the wear pads" perhaps with the upgraded LN billet machined ones.

Question: Is the tool to lock the cams the only special tool required? Is this a straight forward job that can be accomplished by a DIY with standard tools?

.

[BYprodriver]

Originally Posted by Gilles

BYprodriver:

My 07 CS is getting closer to the 60k mark and it's running great, but I was not aware the the cam chain wear pads should be replace around the 50k mark.

It seems that the procedure to replace the cam chain wear pads are the same steps that are used to replaced the IMS: mentioned here numerous times "lock the crank at TDC, lock the cams (with the special tool), then remove the variocam actuators and replace the wear pads" perhaps with the upgraded LN billet machined ones.

Question: Is the tool to lock the cams the only special tool required? Is this a straight forward job that can be accomplished by a DIY with standard tools?

.

I was refering to the CAM chain wear pads for the 97-02 Box engines seen here: here:

this was changed in the 02 996 3.6 & 03 986 3.2 & later so no worries for you there.

Below is the oem IMS to crank chain tensioner paddle you are refering to at the far right side of the picture. You can see the round wear pad that contacts the tensioner plunger & you can inspect for wear by removing the Tensioner.

[Gilles]

Originally Posted by BYprodriver

Below is the oem IMS to crank chain tensioner paddle you are refering to at the far right side of the picture. You can see the round wear pad that contacts the tensioner plunger & you can inspect for wear by removing the Tensioner.
.jpg[/img]

BYprodriver:

Thank you for the pictures, it is possible to remove and replace the IMS to crank chain tensioner paddle with the engine on the car?

Looking at your picture, it seems that you have to split the engine case to remove the tensioner paddle is this correct?

.

[BYprodriver]

Originally Posted by Gilles

BYprodriver:

Thank you for the pictures, it is possible to remove and replace the IMS to crank chain tensioner paddle with the engine on the car?

Looking at your picture, it seems that you have to split the engine case to remove the tensioner paddle is this correct?

.

The engine case must be split to remove the paddle, but you can inspect the main wear point by removing the tensioner.