turbo timing
Submitted: Tuesday, Nov 27, 2001 at 01:00
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Bernie
idling turbos is/was a standard practice, before switching off. Now Toyota recommend no idling after "normal city driving" for it's new Diesel Prados. Any ideas
Reply By: Joe - Wednesday, Nov 28, 2001 at 01:00
Wednesday, Nov 28, 2001 at 01:00
Bernie,
Keeping the engine running for a short while was to keep the oil flow up while allowing the turbo to spin down to a stop. The oil both lubricated the bearings and also performed a cooling function.
Now the need to allow the turbo to spin down is dependent upon whether or not the turbo has been working, and how hard it has been working. If you have been dragging away from the lights and giving the engine some serous toe then I would certainly be following the idle/cool down process and not just turning it off.
However, if you have chosen to drive more sedately for the last five minutes of your trip then I see no real problem with following Toyota's advice.
The catch is in Toyota's definition of "normal city driving" of course.
Good luk.
Joe
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Follow Up By: Alex - Friday, Nov 30, 2001 at 01:00
Friday, Nov 30, 2001 at 01:00
Mmm, is 'normal city driving' bumper-to-bumper gridlock Japanese style, or the more relaxed, faster Australian style?
How about fitting a turbo timer? This eliminates the need to stay with the car while it cools down, and still allows you the option of switching off immediately. Cheers, Alex.
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