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Join Date: Nov 2006
Location: Charlotte, NC
Posts: 1,514
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tensioner rebuild kit
Are these NLA? I want to inspect my mechanical tensioners but why open it up and not throw the o rings and spring in each one right?
Weird I cant find them on the host new parts section...
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JP '76 911s Ice Green Metallic bone stock |
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05-13-2011, 05:00 AM
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Join Date: Aug 2008
Location: Clemson, SC
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My local dealer was able to get me genuine Porsche rebuild kits. So they are out there. I rebuilt a pair of 930 tensioners, one of which seemed to work ok at first. But once I got it apart I found the o-rings were badly worn. So, definitely, if you're going to open them up you should go ahead and fix 'em up.
There used to be a good step by step guide 'out there', but I can't find it any more. The process is a little more than you might be expecting, but not too difficult. Mike
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Michael Caterino Clemson, SC 1970 tangerine (=Tiger Orange) 'T' targa restoration: mk911.blogspot.com |
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05-13-2011, 05:56 AM
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Hey JP, as I was rebuilding my 2.7, I decided to do the same thing as I had heard both pros and cons about the hydraulic chain tensioner kits... I couldn't find them from our host either but discovered that the part number for the rebuild kit is 911-105-901-01 (and you'll need two of them). I found mine at Stoddard. I'd also strongly suggest that you use the 930 idler wheels since that seems to be a big contributing factor to tensioner failure- I think our host caries both the OEM versions and the parts Henry (Supertech) makes- I bought Henry's product because it was cheaper yet seemed to be just as high-quality (if not better made) than OEM.
Hopefully this will help! Curt
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66 912 ... 2.7 conversion (What a blast!) 79 928 5-spd (sadly, sold) 85.5 944 5-spd (sadly, traded for 928) www.curtfranklincreative.com |
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05-13-2011, 07:08 AM
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Join Date: Mar 2001
Location: Marysville Wa.
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the o-rings seem to be the basic problem. the big one usually has blown out into the upper area where the spring is. i went down to the local rubber and 0-ring supplier (gardico) and got a bag of them. the rest of the stuff in the kits is not generally needed. clean, reassemble and bleed.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 Last edited by john walker's workshop; 05-13-2011 at 11:31 AM.. |
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05-13-2011, 10:46 AM
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Location: San Antonio, Texas
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The 930 tensioners are the way to go.
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1973 911S (since new) RS MFI specs 1991 C2 Turbo |
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05-13-2011, 05:44 PM
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Thanks guys.. I'll consume all this... I read about the idler gear being bad in my year.. so I'll look into that.. this video is interesting if you havent seen it.
YouTube - Porsche 911 chain tensioner story
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JP '76 911s Ice Green Metallic bone stock |
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05-14-2011, 04:22 AM
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Upgrade your ramps too.
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1973 911S (since new) RS MFI specs 1991 C2 Turbo |
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05-14-2011, 09:07 AM
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912-6
