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Turbo thermostat interesting discovery !

chrisg

chrisg

Member
Evening All !

So for the last few weeks I've been using the Turbo as a daily driver. I've noticed on a regular basis that when switching the engine off, the electric water pump runs for several minutes instead of the standard 27secs.

When I replaced the belts and took the front of the engine apart. I noticed two things that could contribute to this:

1. I noticed the temp sender unit that sits in the metal water pipe going into the turbo water feed was loose - the sender wobbles in the nut.

2. the water feed on the side of the turbo thermostat housing - small plastic elbow that sits on the top of the water pump had a bit of gunge in it, which I hooked out.

Anyhow, as I had to take the air box off to try a an AFM that Rob W has kindly loaned me, I thought I'd pull the turbo thermostat off to check it wasn't gunged up and was working fine.

Only to find that the elbow is actually blind ie. sealed off so the turbo water feed through the metal framework doesn't flow ! There is a fully fucntional (watched it open in boiling water) mini thermostat that sits within the housing .

So the big question is, should I drill this out so that it will work ?

Chris
 
The company that makes the white elbow that most aftermarket water pump suppliers provide is blind. It should be drilled when installed on a turbo, S2 or 968.

It sounds like the guy who installed yours didn't pay attention.
 
Thanks for clarifying what I already thought ! So, not sure what this has meant to the cooling on my car ? Oh well, I'll drill it out tomorrow and reinstall it together with fresh coolant, which I had planned to do anyway.

Thanks for the clarification though !
 
Chris,

But late replying, but there was a factory bulletin regarding the turbo's additional thermostat. They decided it wasn't such a good idea after all, so asked for it to be removed.

 
So, not sure what this has meant to the cooling on my car ?
Click to expand...

you unfortunately did not have a water cooled turbo........very disappointing to think some-one paid for service like that

a good example of why I prefer to DIY the maintenance

george
944t

Dont know Simon, be interesting to read thru them
 
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