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Posted by: jimkelly Oct 8 2011, 06:57 AM

pic

thermostat


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Posted by: jaxdream Oct 8 2011, 07:49 AM

Hold a hair dryer on em for a bit , or put them into a pan of boiling / near boiling water to see if they expand. Unless they are leaking the liquid inside it's hard to tell , of course there may be a overall length cold vs hot that's some where in some archives. Others will chime in .

Jack

Posted by: gasman Oct 8 2011, 08:29 AM

They are all no good...they are expanded. They should be compressed and expand when heated.

Posted by: Vacca Rabite Oct 8 2011, 10:11 AM

Test with boiling water to find out. My guess is that 2 of 3 may be fine.

Posted by: jimkelly Oct 8 2011, 10:12 AM

as soon as my wife leaves the house - they are getting boiled - but not sooner : ))

pics to come.

looks like you need a special very narrow open end to get the off a rusted bracket.

Posted by: porsche913b_sp Oct 8 2011, 10:55 AM

I call dibs on the working one of course

Posted by: Valy Oct 8 2011, 11:01 AM

A new thermostat is about 35mm long. When it hits its target temperature it measures about 46mm long and continues to expand until it's 55mm long. That's how much the cable that controls the flaps moves.


http://www.ratwell.com/technical/Thermostats.html

The 46mm measurement also appears in the Porsche repair manual page 3.3 - 2/4

Posted by: jimkelly Oct 8 2011, 11:10 AM

pic of my 3 and ruler


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Posted by: jim_hoyland Oct 8 2011, 11:28 AM

One type of bellows has 10 rings and another has 12 or 13; make sure you are comparing apples to apples.

Forgot which type is from the 914...

Posted by: jimkelly Oct 8 2011, 11:34 AM

you guys are making it tough for me to sell crappy parts : )

i just removed this one off a 2.0 i have laying in my garage.




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Posted by: jimkelly Oct 8 2011, 12:00 PM

boil test pics

goldielocks likes the one on the left, not sure about the one in the middle, but would trash the one on the right.

jim


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Posted by: pilothyer Oct 8 2011, 02:36 PM

I'll Pay shipping for the bad ones......Jerry

Posted by: Porschef Aug 3 2012, 05:14 AM

I have one on the way from Clark at Awesome powder coating. Warranty is void if it is not used in the factory bracket to control over expansion. Installing your's in a bracket would also serve to show full travel. The two I have appear to be torn.

Posted by: Mark Henry Aug 3 2012, 06:28 AM

QUOTE(Porschef @ Aug 3 2012, 07:14 AM)

Posted by: reharvey Aug 3 2012, 09:49 AM

QUOTE(Mark Henry @ Aug 3 2012, 08:28 AM)

QUOTE(Porschef @ Aug 3 2012, 07:14 AM)

Warranty is void if it is not used in the factory bracket to control over expansion. Installing your's in a bracket would also serve to show full travel. The two I have appear to be torn.

You should never do these tests without it in the bracket, you run a very good chance destroying the thermostat.