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[Lazydocker]

Did the Annual Plug change today. Actually, it's more like 18 months but anyway...

The plugs I removed (GM Twin Electrodes) were showing very slight signs of wear but nothing to really worry about Although I wouldn't want to leave them much longer than the 35-40k (or so) they've done.

I did have a slightly lumpy idle on LPG (fine on petrol) which appears to have been cured but that may be due to what I am about to say

2 or 3 of the plugs were a little loose... Still needed to use a ratchet to undo them but with very little effort One plug, however, wasn't even finger tight

I know they were all tightened correctly when they were fitted because I did it! So they appear to have worked a little loose over time.

This is something I have noticed with previous LPG converted vehicles too so it's not just an Omega foible so I would suggest checking them at least once a year

[PhilRich]

Thanks for that

[feeutfo]

whats the torque setting for plugs, i know there is one, think i tend to do mine up until i can feel the crush washer is fully crushed, which i believe is more than most people do them up to, that being just nip the washer....?

But yes, will check em soonest.

Ta.

[Welung666]

IIRC 25nm

[Lazydocker]

Was going to say... Not that much!!

Just thought it worth mentioning

[Kevin Wood]

I had the odd loose one after 40k before converting to LPG. I hate to think what would happen if I went for the 80k service interval that's specified for the 3.2. I suspect one would make its' bid for freedom through the bonnet before reaching 80k.

Kevin

[Lazydocker]

I had the odd loose one after 40k before converting to LPG. I hate to think what would happen if I went for the 80k service interval that's specified for the 3.2. I suspect one would make its' bid for freedom through the bonnet before reaching 80k.

Kevin

That's interesting... I've only ever encountered it with LPG converted vehicles, which is something I can't explain! :-? :-?

[Kevin Wood]

That's interesting... I've only ever encountered it with LPG converted vehicles, which is something I can't explain! :-? :-?

Well, actually, thinking back, the last 10k or so of that 40k would have been LPG, because I remember kicking myself for not replacing them while I had it apart for the LPG install, so you may well be right.

I also can't see any reason why the fuel might make a difference. I suppose if knock were occurring it might shock the plugs leading to their eventual loosening, but that should be less likely on LPG. :-/

I wonder if it's less of that oily residue that works its' way into the threads? Perhaps it's been acting as a thread locking compound?

Kevin

Kevin

[MartinP]

I need to replace the plugs in my LPG 2.0, what should I be putting in?

Martin

[Kevin Wood]

I need to replace the plugs in my LPG 2.0, what should I be putting in?

Martin

No reason to use anything other than the standard GM plugs IMHO. Cheap and work nicely on LPG.

Kevin

[Lazydocker]

I need to replace the plugs in my LPG 2.0, what should I be putting in?

Martin

No reason to use anything other than the standard GM plugs IMHO. Cheap and work nicely on LPG.

Kevin

Seconded... I removed GM Twins after... Errm... 20 months or so so 35-40k and they were still in reasonably good nick Looked like the gaps were a little bigger than the new ones but nothing major