re golf 1.9 tdi (90bhp) - '98 S
honest john in agony column beg dec 01 recommended idling engine after long runs in order to keep oil circulating through the turbo while it cools. this to avoid the oil turning to coke in the turbo bearings when oil seals may give way. -
temp.guage during driving and also when idling/cooling remains at '90' (degr.) so no indication here of 'cooling off' period.
question: for how long - 30 sec.s, 30 min.s ? - should engine be idling (after long run) to avoid problems described ??
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Jan
The coolant temperature bears no relation to turbo temperature - the is located in the exhaust manifold and the turbo could be red hot if the car has been run at high load (motorway/ hilly area).
Typically it seems a minute or two may be needed if it's been driven fairly hard without a period of slower running - eg stopping at motorway services, but less if it's been pootled round town or run at lowish speed after leaving the motorway.
Check back to the fairly recent thread on this topic.
regards
John
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Where's that edit button!!!!
........- the *turbo* is located....
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"High" load?
"Cooling off"
Far to many drug references for me there!
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MHH
Well, it's you who seems to think they are there!
Regards
john
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Is that the "real" Micky HH.
If so you've left us with nothing but good said of Xantias for months. How could you do it?
David
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It all depnds where the temperature gauge sensor is. the oil aroud the turbo bearings can get much much hotter than the temp of the oil in the sump. A friend of mines Saab 2.3 turbo almost boils his oil. Last time he hammered it we got out and looked under the bonnet. The turbo and manifold were glowing! Something to do with the bleed valve i think!
Good thing he uses good synthetic oils. When he got it it was filled with mineral base oil, this degraded to sludge in no time at all and recked the turbo (pre bleed valve). He is so worried now about it happening again he changes his oil every 1k miles. Good thing it only costs him £1 a litre. If you use the turbo id reccomend Mobil 1 or similar.
Ben
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