Member Since: 14 Oct 2005
Location: Somerset
Posts: 1146
I have found that I have had plugs break at 30Nm with the vibro gun.
Regards
Steve
27th Jan 2019 8:11 pm
mek
Member Since: 18 Mar 2015
Location: Zurich
Posts: 469
For what it's worth I contacted Laser to ask about what effects an airline with under 80PSI pressure (recommended min) would have, and received this reply:
Hello Andrew,
You are correct in that the lower the input pressure equals the output torque.
I believe this tool will give you the best chance in removing a glowplugs that could be stuck in by corrosion or carbon build up.
We have not known anyone to break a glow plug with this tool on 4 but it is possible if the corrosion on the plug is bad.
I personally found it best on 4 and once the plug starts to unwind go forward and backward so the impact vibration works on the cause until its removed.
Then obviously the glow plug aperture needs vacuuming and preparing ready for the new plugs.
We cannot guarantee this tool will remove all plugs or even damage plugs but it will be your best option I believe.
Kind regards
Ryan Brookes
Technical Support Manager
29th Jan 2019 5:29 pm
dutchviking
Member Since: 07 Oct 2011
Location: Oslo
Posts: 61
Well good to read that writing this 'how to' does encourage people to take on the job
Would be interesting to learn why some have a lot of carbon deposits on the glowplugs and some not. Is it the quality of the diesel? The ones I removed were only ever so slightly corroded at the top, so near the part that is visible outside the cylinder heads. 2nd and third thread from the top. On the piston side they were all pretty clean.
Here in Norway we use winter diesel almost 6 months a year and pre-heat the engine with the webasto before starting. But I hear about breaking glowplugs as well so not sure.
5th Feb 2019 8:03 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10674
The carbon usually builds up along the length of the glowplug (and they are long) and they aren't perfectly straight.
So when you go to turn them, they hit carbon and go tight.
5th Feb 2019 5:47 pm
vegar
Member Since: 08 Apr 2015
Location: Fredrikstad
Posts: 45
Glødepluggverktøy
Hei.
Ser du har gjort jobben med å bytte glødeplugger, og at du kjøpte verktøy til dette. Hadde det vært mulig å leie det verktøyet av deg?
Mvh
Vegar-05 Disco3 TDV6 SE
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4th Jan 2024 9:53 am
ostosix
Member Since: 19 Mar 2017
Location: Lincoln
Posts: 324
Just started glowplugs and havent got the vibro tool. Done glowplugs before on other vehicles without. So i was exceptionally careful. Despite this being ever so careful going back and forth etc, penetrating oil and heating a small socket up to sit over the plugs ive still broken 5 of the 6 plugs. They all nudged with a little click so just kept going both ways and still bust. Only one is out but still coked in.
Either get the tool or tackle these way before they’ve been in 19 years!
1st Feb 2024 5:24 pm
dutchviking
Member Since: 07 Oct 2011
Location: Oslo
Posts: 61
an update after some years.. as part of an engine rebuild I was going to remove the glowplugs while I had both cylinder heads off. 2 days with KROIL presoaking, the vibro impact tool... this time 5 of 6 plugs snapped. Used a glow plug extractor kit but still a time consuming job even with the heads off! What worked even better than the extractor tool was to drill all the way til you see the glow pin stepping up drill diameter from 5 - 5.5 - 6 - 6.5 - 7 - 7.5mm keeping the correct angle. Then it was really easy to get the remaining part out with threads still intact. But then again the heads were off. I bought both heads from a salvage company in the netherlands. They came from a very low milage Range Rover Sport. Might be the different diesel, not several months with winter diesel to cope with low temperatures as we use here in Norway and the fact that I mix the diesel with Liqui Moly 2 stroke oil.
Hello. Rather than starting a new thread thought I'd comment on this one, not entirely unrelated.
Q: is it possible to identify which glow plug by the wire colour under the engine cover?
On each bank we have 3 wires: yellow/brown, yellow/red, yellow/blue (I think!)
Context: on my passenger side (UK) the yellow/blue wire is not carrying any load at all. All others are pretty stable at 12A ish. While not perfect, they all work.
I know of the risks of trying to remove a glow plug. Even more if it's the one under the HPFP. I'd like to know which one to go for without having to extract all 3 on that bank.
Thank you!
Alberto
7th Nov 2024 12:59 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10674
I checked all glowplugs now.
5 of them are 1 - 1.5 Ohm (in engine, checked each glow plug wire with ground on battery negative).
For those 5, clamp meter reads 12 A for each wire as before.
Except for one, front/passenger side, 0A, no Ohm reading.
Could you then conclude that 5 are fully working and 1 is completely dead?
You sure you wouldn't touch it?
8th Nov 2024 4:29 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10674
Yes. 5 are working fine.
The problem is that it is easy to snap glowplugs on these early models. And will cost £700+ to fix.
In reality they are only required below 0C
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