L

leesp38v8

New Member

• Jun 7, 2012

• #1

took me plugs out to day and there was a carbon build up, is that normal, its also running on lpg????? 4.0 v8 thor engine

 

Saint.V8

Dyed-in-the-wool 100% RR Junkie

Full Member

• Jun 7, 2012

• #2

As attached....Goooooogle is your friend

 

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  Plugs.jpg

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L

leesp38v8

New Member

• Jun 7, 2012

• #3

thats great mate. sounds like i weak spark, i have just brought some new ht leads, that might sort it, the plugs r 8 week old i think i set the gap at 9mm its running on gas, i wonder if gap is to biggg

 

Saint.V8

Dyed-in-the-wool 100% RR Junkie

Full Member

• Jun 7, 2012

• #4

9mm.....hmmmmm that is way to big, you could park a fecking bus in that gap....

As attached....

 

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nick2303

Well-Known Member

• Jun 7, 2012

• #5

we needs a picky of a 9mm gap on a spark plug....

doubt in could be done...

 

L

leesp38v8

New Member

• Jun 7, 2012

• #6

bloody hell wats up with me tonight i mean 0.9mmm, i am a hob nob

 

Saint.V8

Dyed-in-the-wool 100% RR Junkie

Full Member

• Jun 7, 2012

• #7

leesp38v8 said:

bloody hell wats up with me tonight i mean 0.9mmm, i am a hob nob

Click to expand...

:hysterically_laughi: :mooning::behindsofa:

 

ovalandrover

Well-Known Member

• Jun 8, 2012

• #8

LPG needs a hotter spark than petrol so a smaller gap is better than bigger one.
I run some old engines on LPG only and to make starting easier I set gap to 25 thou rather than 32 thou. thats inches not metric.

 

H

Hawaii

Active Member

• Jun 8, 2012

• #9

when I had mine converted to LPG, the installer (local LR Indy) changed the HT leads for magnacor and the plugs for iridium ones which, apparenlty, suit the lpg engine better.

At last service (about 3 weeks ago) plugs all nice & clean