EmilysDad
Senior Member
Pray tell, why?
Because WD40 is a water displacer (as its name suggests ) ..... not a release/penetrating fluid
Pray tell, why?
This is what I did a couple of years ago , just changed a failed one . The reason I changed all of them was that I've heard couple of times that when a gp fails it can blow the relay ?Had one of mine done a few wks ago. Indie wanted to change them all, but I said see how the failed one comes out first. He said it was very tight, so only did that one.
That's what I understand as wellBecause WD40 is a water displacer (as its name suggests ) ..... not a release/penetrating fluid
That's what I understand as well
.... and Plusgas is freely available from stores at work ....
Get yourself a cheap electrical plug pulling pliers from eBayGoing to try to change plugs on the wife’s ML-320 this weekend and looking for any practical advice I can get. I did mine a few years ago without issue but reading some of the horror stories I am now a little paranoid.
I have soaked the glow plugs in WD40 for a few days and plan to take the car out for a run before I start to get it nice and hot. Any other tips eg, max torque to back out etc...
I see lots of kits on eBay to help extract broken plugs. Has anyone experience of using these on the 320CDI ?? The videos look simple but as always they show you how to do it on a very accessible plug, not the same recessed application that I have.
I haven't got one that will do the job pal . Might keep them for a future check just out of interest though .
Good to know , the used GP's all passed a resistance test using my multimeter . The decision to change them was more time/mileage related , and I'm treating the old girl to some sensor freshen ups at 10year/100k miles .Any battery above 9 volts will work. Just a bit of wire - no bulb needed.
Once the wire is connected to one battery terminal and the glowplug is connected to the other, just a brief touch of the wire on the glowplug to complete the circuit will give you the answer.
If there is a spark, the glowplug works.
If there is no spark, the plug is duff.
Any battery above 9 volts will work. Just a bit of wire - no bulb needed.
Once the wire is connected to one battery terminal and the glowplug is connected to the other, just a brief touch of the wire on the glowplug to complete the circuit will give you the answer.
If there is a spark, the glowplug works.
If there is no spark, the plug is duff.
So don't put the end between your teeth when testing ?Be aware that glow plugs get stupidly hot very very quickly if you apply 12 volts to them ..... apparently
This is what I did a couple of years ago , just changed a failed one . The reason I changed all of them was that I've heard couple of times that when a gp fails it can blow the relay ?
Tighten them slightly before trying to loosen them breaks the seal.
If there is a spark, the glowplug works.
Ignorance is blissThe gods were smiling on you to have such an easy time of swapping the GPs out - congrats.
There is a lot to that, if you're aware of the pitfalls I believe you're more likely to suffer as you're aware of them.Ignorance is bliss
I was super confident to do the job , because the glow plug I removed a year or two ago , came out really easilyThere is a lot to that, if you're aware of the pitfalls I believe you're more likely to suffer as you're aware of them.
Shear or stripped......bad and worse !!! Both of them the stuff of nightmare's..Stripped thread is worse!