question on upgraded chain tensioner
 

i was told today that my 85'targa does not have the upgraded hydraulic timing chain tensioner.
how "unreliable" is the original tensioner compared to the hydraulic setup? it's running fine and such, but if i can eliminate a future problem because of this i think it would be wise to upgrade.
thanks in advance and any opinions welcome:)

bell
85' 911 targa

Re: question on upgraded chain tensioner
 

Hydraulic tensioners were standard starting with the '84 model. Unless someone went to the trouble to get rid of your's, your car already has them. -Chris

cool, thanks.
i was told this by an ex-porsche tech, he was a little older so maybe he retired before 84:)
is there an easy way to ensure my 85' has this without taking anything apart?
thanks
again

bell
85'911 targa

It is really easy to check, if there is an oil line going into the front timing covers, you have them.

The thick brass line feeds oil to the cam, the thin line that branches off feeds the tensioner.

Here is a pic:
http://www.pelicanparts.com/techarti...ners/pic22.jpg
Tom

yep:)
that's what mine looks like (although not as pretty)
thanks for your help
this board rocks

bell
85' 911 targa

Beware of the ex-Porsche tech that doesn't know what a pressure fed tensioner looks like.:(

i was visiting my friend seth today (he's the porsche salesman at fred baker porsche/audi) and i was chatting with this guy (who said he used to be a tech) and he was checking out my targa when he pointed that out..........got me curious so i came here for a knoledgeable answer:)
oh well, i know what i wanted to know now

bell
85'911 targa

A guy like that is a lot more dangerous than someone who just admits that they don't know *****. :)

that's why he's a salesman now.

you have my friend seth mixed up with the old tech, no big deal though:)

bell
85'911 targa

I haven't seen another SC to compare my tensioners to, but comparing mine (below) to that picture I think I do have the updated ones. What do the standard SC tensioners look like?
This could be a few hundred quid off my P-Car wish list!:)

Aye, Chris....your SC has the Carrera tensioners.

Excellent! Thats made my day!
:D :) :D :) :D :) :D :) :D

Chris,

You really should install the little brackets that hold the oil lines in place. It is my understanding that without them, they tend to fatigue from vibration.

Graham,
Are these original Porsche parts that I could order from my local Porsche dealer or do I have to fabricate them?

Parts are available from Porsche as:

Left Bracket, 930 107 341 00 (1 req)
Right Bracket, 930 107 342 01 (1 req)
Hose Clamps, 999 511 174 02 (2 req)
Screws, 900 119 059 02 (2 req)

Thanks Doug. Another job for the weekend.