Timing belt tensioner

[Racer71]

Kinda strange question but I have a hydraulic belt tensioner that is no longer available to buy new that is bad. Has anyone ever tried opening one up possibly replace seal and I’m assuming O-ring inside? I guess I could try to make a mechanical adjustable tensioner assembly if I have to like we do on the Chevy ecotec engines.

[ProPower engines]

Kinda strange question but I have a hydraulic belt tensioner that is no longer available to buy new that is bad. Has anyone ever tried opening one up possibly replace seal and I’m assuming O-ring inside? I guess I could try to make a mechanical adjustable tensioner assembly if I have to like we do on the Chevy ecotec engines.

So what engine are you working on???

[Racer71]

3.0 Porsche from my 968

[dannobee]

A couple of springs, a piston, some discs with holes, and oil. Now that I'm thinking about it, it seems that damn near all of them that I've replaced over various engines seem to have the same sized tensioner bores and bodies, with only the mounting bolt bosses differing. If I had a friendly parts guy, I'd tell him what I'm doing and try to match something up and swap the guts out. Aisan seems to hold the patent and manufacturing on most of them.

http://www.rockauto.com/genImages/64/HydTens.html

I see that FCP Euro shows a 968 tensioner in stock, but it is pricey. "Porsche tax," add a zero to the end of what it costs for Hondas and Toyotas.

What exactly is wrong with yours?

[Dan Timberlake]

Is this it ?

https://www.fcpeuro.com/products/porsch ... 7943012001

07943012001

1992-1995

[dfarr67]

In the theme so to speak, Toyota 22RE timing chain tensioner- decent engines but the tensioner is a weak point for dirt or trash or whatever compromises it. Looking to replace my brand new tensioner- here dealer $250cdn, pulled ebay NOS for $45us- for such a small simple part, lots of china crap out there. Not to too bad of a job- but who likes doing things over and over.

[Racer71]

When I went to order the one at FCP it came up out of stock. I saw the cutaway on the rock auto site while doing some late night searching. I may try to pull the original apart, not much to lose. Belt is slapping badly so not gonna try running it. If I could find a round one with no mounting tabs and make a hold down that uses the original mounting holes maybe. I guess I could make up something and adjust it manually like my old turbo.