The WSM calls out Prestik 4mm (whatever that is??) to seal the top of the rear coilover assem to the body.
The local Porsche dealer seems to have no idea what this is.
Is there a substitute for this? - is it even needed?

Also, is the Molykote U really needed?
If so, is there a substitute for it?

TIA,

 

I doubt that anyone who has changed their shocks, has resealed the top of the shock against the body. If I were to do it, I'd use some urethane seam sealer. I've never heard of anyone mentioning the molykote.

 

you could use a small strip of 3M body caulk (also can be used for resealing the bower box) to reseal the shock towers though the factory stuff is usually still in place. For the Molykote I think thats antiseize use a liberal amount on the lower shock pins , use thick grease to hold the curved washers in the hub carrier

 

Any flexible sealer will work - it's only to prevent water getting from inside to outside. Don't use silicon unless it is neutral cure (ie no acetic acid) as the acid is not good for the steel bits.

Last time I used some self adhesive soft closed cell foam - normally sold for draft sealing around external doors (in your house)

 

I hate it when it rains in the car and leaks onto my suspension

 

I just did mine with the rear shock replacement. I rolled a piece of 3M strip caulk into a small rope (~3/16") and layed it on the top plate in a continuous loop. Bolted up, it squeezes and seals nicely. I would avoid RTV completely. Besides the acid issues that Jon mentioned, the stuff is really tough to get out on replacement. The strip caulk I have is at least 20 years old, and still soft and flexible in the package. Works great.

A workaround would be something like plumber's putty, available in a small container at any hardware store.

 

Ain't a guy allowed a bit of lexdysia now and again

 

I used 3M strip caulk as well. One strip around and all around each of the three bolt holes.

 

It sounds like 3M strip caulk is the clear choice.
I'll get some.

Thanks everyone