Fwd: Quirky thermostats

[Jason Mawhinney]

>
>Hi everybody!
>Just wondering if anyone else has had any experience with new thermostats
>that don't allow the engine to get to operating temperature in the 5 cyl
>cars.  A few years ago before I installed the 20v in the 4k, I installed a
>new thermostat in the original engine because it was stuck open.  The new
>one I installed acted exactly like the one it replaced.  I figured I did
>something wrong in installation so I took the car to my mechanic and he
>replaced the Stant unit I installed with a german one.  It seemed to work.
>Now that the 20v is installed, I'm having the same problem that I had with
>the 1st engine where it wouldn't come up to operating temperature when
>it's cold out.  I again installed a Stant and there was no change.  Again,
>I went to my mechanic and he said the Stant thermostats didn't generally
>work well in the 5 cylinders and he installed a unit he got from the Audi
>dealer (presumably an OE german unit).  Again, I have no change!  Is there
>a trick to installing these things?
>Has anyone else had this much trouble with thermostats?
>Puzzled,
>Jason Mawhinney
>'85 4kq 20v
>'86 coupe GT (thermostat works!)
>'87 5ktq (I'll find out soon if the thermostat works)
>'70 MGB (thermostat always has worked perfectly.  The English did
>something right!)