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Jun 14th, 2026
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Joined: Dec 2009
Posts: 413
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OP
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Joined: Dec 2009
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Spark plug info Very interesting to learn more and more, 1 plug is black (oil!!) 3 are well Next winter I have to look to the motor  Perhaps I put I wormer plug in to burn the oil temporary Stupid question what is you spark plug for a Ford 1600 CHV from 1985
Don't Worry, Be Happy
Morgan 4/4 1985 2,0 Zetec
BMW R1200 GS
Triumph TR140
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Joined: Dec 2008
Posts: 22,358 Likes: 353
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,358 Likes: 353 |
A hotter plug might work for now. There are several reasons why a plug oils, and once oiled, they seldom clear themselves.
Try a compression test - if that's OK it might be a valve stem oil seal.
The BL A Series engine was prone to oiling number 3 cylinder. I once had a valve fail and the plug oiled immediately. Despite several attempts at cleaning of course, it had no effect. Sometimes if the plug wets on a cold start it won't self clear, and will appear to be oiled. If you suspect that, then try warming the plug on the gas ring before starting. That problem may be the choke, but could also be a compression problem.
It's a case of trying one thing at a time.
According to the NGK website - Morgan 4/4 1985 is BCP6E, Escort 1600 1985 is BCPR6E, or Iridium plugs for both - (Expensive) is BCPR6EIX
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: May 2009
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South Wales Correspondent Talk Morgan Expert
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South Wales Correspondent Talk Morgan Expert
Joined: May 2009
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According to the NGK website - Morgan 4/4 1985 is BCP6E, Escort 1600 1985 is BCPR6E, or Iridium plugs for both - (Expensive) is BCPR6EIX Dave, I've fitted the iridium plugs to my 2000 Zetec. As you say, pricey- but they do perform very, very well regards, G
GLLHG
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Zyl 1 140 PSI black deposits Zyl 2 165 PSI normal brown/with Zyl 3 160 PSI normal Zyl 4 160 PSY normal gap all 0,7mm all BCP R6 E NGK R
Don't Worry, Be Happy
Morgan 4/4 1985 2,0 Zetec
BMW R1200 GS
Triumph TR140
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Joined: Dec 2008
Posts: 22,358 Likes: 353
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,358 Likes: 353 |
140 isn't too bad although a bit down. It (possibly) points to leakage round the valve. Consult a Ford CVH expert & find out what the expected reading should be, then consider having the head off.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Sep 2010
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New to Talk Morgan
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New to Talk Morgan
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Hi Sukram,
for far as i know oilfouling of a spark plug is mostly caused by worn valve guides , bores or piston rings or (but i think this not the case)whilst a new or overhauled engine is running-in.
fyi NGK BCP6E = Champion OE023 (gap= 0.9)
BCPR6E = OE005 (gap= 0.8)
BCPR6EIX= OE179 (gap= 1.0)
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