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Registered
Join Date: Aug 2000
Location: Bellingham, WA, USA
Posts: 400
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external t-stat
While trying to remove the supply line from the external oil t-stat I cut to far and damaged the threads, oops. Frustrating because I had removed all of the other lines succesfully either by cutting or conventially with wrenches.
Do I a)bite the bullet and shell out $300 for factory t-stat, b)buy the Mocal unit for +$100 or c) take my chances with the thread saver? Before browsing the online catalog today I didn't know the thread saver existed. I'll have to examine the damage a little closer tonight to see if I cut to far up the threads to make this work. Since I cut through I'm also concerned about metal bits making the thread saver less attractive. Disadvantages to the Mocal? Why is it so much cheaper?
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Rob Fix '78 3.6L SC Targa Eiche Gruen Metallisch |
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12-09-2002, 09:18 AM
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Recreational Mechanic
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Rob,
How far did you cut into the threads? I did this too on mine a little. The seal does not come from the threads itself, but from the tapered inner mating surfaces. If you only cut into them a little with a Dremel cut off disk, then its probably salvagable. Did you cut all the way thru? Nick.
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P Cars: 2022 Macan GTS / One empty garage space ---- Other cars: 2019 Golf R 6MT / 2021 F-250 Diesel / 2024 Toyota GR86 6MT ---- Gone: 1997 Spec Boxster Race Car, 2020 GT4, 2004 GT3, 2003 Carrera, 1982 911SC, 2005 Lotus Elise and lots of other non-Porsches PCA National DE Instructor #202106053 / PCA Club Racing / WRL Endurance Racing |
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12-09-2002, 09:41 AM
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Registered
Join Date: Nov 2002
Location: Arlington, VA
Posts: 1,045
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Rob,
When pulling the lines off my t-stat to replace the brass lines, I damaged one fitting on the t-stat. It looked like the threads were flattened. I was able to use a thread cleaner file to rejuvinate the threads and it worked great. A friend of mine had the tool and showed me how to use it. It looks like a file with 4 sides. Each side having a different pitch. Once you line up the file corrctly on your threads (matching up the correct pitch) you slowly and cafefully 'sharpen', with a back and forth motion with the grain/threads, until you work around the whole fitting. It essentially cuts away the bad parts and cleans the grooves. Worked very nicely. Take your time. -Charlie |
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12-09-2002, 10:02 AM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,197
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I agree, if you didn't go too far you can probably still use it, but if you did then personally I think I'd go with a new Porsche unit.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa  SOLD 2004 - gone but not forgotten
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12-09-2002, 10:08 AM
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Registered
Join Date: Apr 2002
Location: Santa Clara, CA
Posts: 5,668
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You'd have to really mess up the threads to make the tstat unusable. Like Nick says the seal isn't made by the threads, so all you need the threads to do is hold tight.
I wouldn't go the mocal route. If you do that you will need to replace at least two of you oil lines with flex hose because mocal has the connections in the wrong place. Further you will need to get adapters since mocal is AN fittings and your car is all metric. You'll spend more on the mocal solution. Plus I don't think mocal has a pressure bypass like your factory tstat.
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Chuck Moreland - elephantracing.com - vonnen.com |
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12-09-2002, 11:24 AM
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911SC 3.0
