Driving with Turbo water pump fuse blown ! ....
08-23-2002, 08:01 PM
#1
Racer
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Driving with Turbo water pump fuse blown ! ....
Was just checking all my fuses out of curiousity and noticed that the one for the turbo water pump was blown. Don't know how long its been that way.
Haven't noticed anything strange with the car, but then I haven't raced it this year.
Question I have is, what are the repurcussions of not having a working turbo water pump?
<img src="confused.gif" border="0">
Haven't noticed anything strange with the car, but then I haven't raced it this year.
Question I have is, what are the repurcussions of not having a working turbo water pump?
<img src="confused.gif" border="0">
08-23-2002, 08:46 PM
#2
Rennlist Member
If you have driven the car hard let it idle for a few minutes to get some of the heat out of the turbo bearings.
I just blew one in a brand new pump. Put a new one in and all was well.
Alan
I just blew one in a brand new pump. Put a new one in and all was well.
Alan
08-23-2002, 09:58 PM
#3
Racer
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As far as I can tell, the turbo seems to be working ok. I'm guessing I didn't drive it hard enough to cause any damage.
What's the sign of worn out or damaged bearings without dissassembling to see?
What's the sign of worn out or damaged bearings without dissassembling to see?
08-26-2002, 07:56 PM
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let me add this: oil in the intake (including splashback into the j boot) is fine. just fine and dandy. it's normal. this will happen. If the turbo isnt smoking constantly (hard acceleration alone doesnt count) then it isnt time to rebuild it.
Play of anything less than 1 mm (feeling by hand, of course) is fine too. check out the turbo addendum of the factory manuals... if you want an iron clad indication of the bearing's life, check the exact play specification for the bearing in the turbo addendum at <a href="http://www.ninefiveone.com..." target="_blank">www.ninefiveone.com...</a> also, max oil consumption for these cars is something ridiculously high, in the neighborhood of 1 liter every tank of gas or so.
Cheers.
Play of anything less than 1 mm (feeling by hand, of course) is fine too. check out the turbo addendum of the factory manuals... if you want an iron clad indication of the bearing's life, check the exact play specification for the bearing in the turbo addendum at <a href="http://www.ninefiveone.com..." target="_blank">www.ninefiveone.com...</a> also, max oil consumption for these cars is something ridiculously high, in the neighborhood of 1 liter every tank of gas or so.
Cheers.
08-26-2002, 09:12 PM
#6
Nordschleife Master
My understanding, which is limited, is that the electric pump prevents the residual oil on the bearing from carbonizing, or caking on, after the engine is shut off and the heat from the exhaust etc. soaks into that area. I think it would take a while for this to have a large efect on the turbo.
09-03-2002, 02:11 PM
#7
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The problem with the oil cooking in the turbo after shutdown is even worse with the conventional mineral oils. If engine shutdown occurs immediately after a hard run, the oil cooks in the turbo, and on restart the bearings wear badly.
