Thread: TD5 cylinder glazing

OK, B92, how do you manage to NOT activate the glowplugs on your Disco?
On my understanding, you turn the key on and the glowplug relay is activated... period.
So turn the key to start, but the glowplugs are still activated.
My 300tdi starts instantly I turn the key, but on the coldest mornings I know the glowplugs have also been activated. But she still starts pretty much on the second engine revolution. The quick start comes from the glowplugs????
The glowplugs have a purpose, just like the turbo. But us mere mortals driving the vehicle don't have any say in the matter as to how or when they do their job.
Its a Land Rover thing.
llandro

Originally Posted by llandro

OK, B92, how do you manage to NOT activate the glowplugs on your Disco?
On my understanding, you turn the key on and the glowplug relay is activated... period.
So turn the key to start, but the glowplugs are still activated.
My 300tdi starts instantly I turn the key, but on the coldest mornings I know the glowplugs have also been activated. But she still starts pretty much on the second engine revolution. The quick start comes from the glowplugs????
The glowplugs have a purpose, just like the turbo. But us mere mortals driving the vehicle don't have any say in the matter as to how or when they do their job.
Its a Land Rover thing.
llandro

I think what B92 is inferring, is that some still wait to glow a D.I. engine even when warm. It is true they don't usually require glowing to cold start. Warm, absolutely unnecessary.
JC

Using the glow plugs is fine. It results in less load on everything, less fuel getting past the rings at startup, quicker warmup, etc.
As you said, they are activated as soon as you turn the key, and don't go off till the t/sat/relay turn them off.

Does anyone know how important/useful is ultrasound bath cleaning for engine parts? Is it now standard practice or just used by very well equiped shops? Does it remove anything harmful that dilligent scrubbing with soaps etc does not get? It is a bit of an aside in this case as I guess that if the problem here was poor clenliness then it is more a case of no cleanliness.

Originally Posted by justinc

I think what B92 is inferring, is that some still wait to glow a D.I. engine even when warm. It is true they don't usually require glowing to cold start. Warm, absolutely unnecessary.
JC

Yes, that's what I was referring too (phew, thanks for the "jc bailout")

The 200Tdi ones seemed to run for ages - friend of mine with a 93 Disco drove 250km nonstop solid from Melbourne to Glenrowan, stalled in the Macca's drive through and sat there glowing the bloody thing for 15 seconds...

Originally Posted by Sleepy

re-read and wilco - I must admit as an ignorant user I had always thought a good "warm-up" was the right thing to do - not that I ever have time!.

I am glad my impatience is actual avoiding damage.

Best way to warm a car (not engine only) is to start it and drive it sedately until it is up to operating temperature, that way you warm everything, not just the engine

I can't agree more with^^^^. Mine not a TD5 but We get over 14000 HRS out of our Tractors here by going easy till warm and then give em some.
Same reason my 4D56T Mitsu still works at 360000 km.

The Water Pumps here get a hard life as 80% load from cold but don't seem to glaze bores and get over 20000 hrs with out overhall.

I think stop start and short runs are the killer.

Tony

On my TD5, on a cold or warm start, I turn the key and wait for all the warning lights to go out before starting. That usually takes care of most of the glow plug light time.

I thought that it was a bad idea to start the car before the system checks had time to cycle through!

Of course, I could be totally wrong about that

Cheers

Andy