Turbo Diesels

[FarmerPug]

Are you supposed to let a Turbo diesel / Hdi sit in idle for a period of time before switching it off, is there any particular precautions about using a turbo diesel car? I just read something in a 405 manual, but perhaps the Hdi is different. Anyhow lets just discuss how to look after the turbo.

[lozz]

iwouidnt think thats the case ,
well anyways ijust park up and switch off, engine is always up to temp (90)
ive never heard of it causing a problem.

as for looking after turbos iread a thread on another forum iused to be a member of and peeps on there recomended a drop of 2 stroke oil added in the tank its supposed to be good for turbos

(yes motorbike oil )

never tried it but a few did and said it make an improvement to the cars performance,

have a read of this if your bored

http://www.freel2.com/forum/topic878.ht ... stroke+oil

[markyp130]

I think its best to let the turbo cool down slightly before turning off the engine, if the turbo has been working hard at high revs or along run.
As the oil feed to the turbo bearings can carbonize if the turbo is shut down when very hot. The turbos on old peugeots are quite robust not like the new ones..

[FarmerPug]

is the hdi 110 turbo one of these older turbos.
I know the 1.6 turbo is known to feck up

[lozz]

is the hdi 110 turbo one of these older turbos.
I know the 1.6 turbo is known to feck up

Never heard of tubos going down on the 110s mate
plenty of taxi drivers have told me there a bomb proof engine some that ive seen have been too the moon and back on miles,
Ithink if the turbos on them where known to feck up the 406s wouidnt be so popular,

[markyp130]

My neighbour has a 2008 307 2.0 hdi and it seems to eat turbos, i think all the 406 turbos are most robust and run at a lower boost.

[Welly]

The 110 turbo (usually a KKK unit) is very strong but it is well within tolerance so will go on happily for what seems like forever letting in run-down is a nice treat but not really essential although you should not switch off if you've just been revving the thing.

My HDi turbo used to be dripping in oil but boosted along like the best of 'em

I think the standard 110 turbo boosts at about 1bar, 14.5PSi but some of the modern 1.6 D turbo's run double that in fact I can't see many of these small-capacity new engines going the distance like they used to

[FarmerPug]

ah so the 110 2.0 hdi is so reliable because its a big engine with a relativley small output therefore everything is under very little stress to do its job. Sort of why big american engines are so reliable because they are not stressing themselves.
That makes complete sense, the 1.6 hdi's turbo is having to make a smaller engine develop the same power as the 2.0 so under more strain. At least its fitted in front of the engine for easy access. But why do beemers eat so many turbos, are they made do too much? And why is turbos so expensive for what is essentially a fan.

[Doggy]

Sure I've read the same precautions applied to 90 / 110/ 136 HDi's, but if (like me) you have to drive a mile or two through town before stopping, you've taken care of it anyway.

I try to have a longish slow down if stopping on a motorway or similar - may not be necessary, but it can't hurt.

[Welly]

But why do beemers eat so many turbos, are they made do too much? And why is turbos so expensive for what is essentially a fan.

The early 530d's had a 'spate' of turbo failures due to 'Harmonic Vibrations' causing them to break up, then there's the crankcase breather system which can block and force the engine to consume it's own pan of oil until an untimely death this is why the owners of ultra-reliable 530 Petrol's could swan about with an air of superiority given that the petrol does nearly the same mpg but has none of the troubles

Turbo's are so costly because they are almost equivalent in quality to aerospace-type engineering with eleventy-million rpm's every day.

[Bailes1992]

Always used to let my Pug sit for a few seconds, just to let the turbo spin down and still have an oil feed. If the turbo is spinning fast and you switch off the engine then the oil feed going to the turbo stops and and the turbos spinning with no lubrication.
Also never put it on boost until at least 70 degrees.

And two strok ein the oil upps the cetane rating and lubricated the pumps

[CountryPug]

I always let mine sit for a few seconds before turning it off for the same reason as Bailes. It can't do any harm and it gives me the chance to tell passengers that my 406 is turbocharged...if I didn't tell them, then they wouldn't know...

[plod]

But why do beemers eat so many turbos, are they made do too much? And why is turbos so expensive for what is essentially a fan.

The early 530d's had a 'spate' of turbo failures due to 'Harmonic Vibrations' causing them to break up, then there's the crankcase breather system which can block and force the engine to consume it's own pan of oil until an untimely death

A mate has a 530d and his did that last year on the M69 on the way back from the footie
Not 100% but think it cost him £2.5 to put it right and that was mate's rates for fitting the replacement engine

[Bailes1992]

But why do beemers eat so many turbos, are they made do too much? And why is turbos so expensive for what is essentially a fan.

The early 530d's had a 'spate' of turbo failures due to 'Harmonic Vibrations' causing them to break up, then there's the crankcase breather system which can block and force the engine to consume it's own pan of oil until an untimely death

A mate has a 530d and his did that last year on the M69 on the way back from the footie
Not 100% but think it cost him £2.5 to put it right and that was mate's rates for fitting the replacement engine

£2.50 dosen't seem at all bad to me?

[plod]

A mate has a 530d and his did that last year on the M69 on the way back from the footie
Not 100% but think it cost him £2.5 to put it right and that was mate's rates for fitting the replacement engine

£2.50 dosen't seem at all bad to me?

Bugger, meant to put a K next to it