Stationary Running Engine

When keeping a turbo diesel engine running but the vehicle is
stationary, is it necessary to increase the revs? We were told to do
this in Kazakhstan where the temperature was -40 degC and indeed the
Toyota Hi-Lux had a manual choke style knob. Something to do with
lubrication I think.
True?

"PaulH" <[email protected]> wrote in message
news:[email protected]...
> When keeping a turbo diesel engine running but the vehicle is
> stationary, is it necessary to increase the revs? We were told to
do
> this in Kazakhstan where the temperature was -40 degC and indeed the
> Toyota Hi-Lux had a manual choke style knob. Something to do with
> lubrication I think.
> True?

Not true for normal idling at the traffic lights. True if idled for
hours at a time because the bores will glaze and the engine will
consume oil at a disgusting rate, which will be permanent. Certain
engines will be protected to a great extent if a high idle speed is
used, say 1500erpm.
In extremely low temperatures the slow idling engine might also run
extremely cold and the oil might thicken enough to prevent proper
lubrication.

Huw


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"PaulH" <[email protected]> wrote in message
news:[email protected]...
> When keeping a turbo diesel engine running but the vehicle is
> stationary, is it necessary to increase the revs? We were told to
do
> this in Kazakhstan where the temperature was -40 degC and indeed the
> Toyota Hi-Lux had a manual choke style knob. Something to do with
> lubrication I think.
> True?

Not true for normal idling at the traffic lights. True if idled for
hours at a time because the bores will glaze and the engine will
consume oil at a disgusting rate, which will be permanent. Certain
engines will be protected to a great extent if a high idle speed is
used, say 1500erpm.
In extremely low temperatures the slow idling engine might also run
extremely cold and the oil might thicken enough to prevent proper
lubrication.

Huw


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.572 / Virus Database: 362 - Release Date: 27/01/04