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Thread Tools | Display Modes |
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#1
22-05-2010, 22:17
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was number three finger tight or thereabouts? if it was loose it could cause low compression and a miss that improves with rpm...
Oil on one plug is a little concerning, so would be worth a compression test if tightening the plugs properly doesnt yield results. 
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#2
22-05-2010, 23:37
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no.3 was medium to take off with a tool, so pretty easy.
what do my plugs look like? ive been reading when they look like that along with the white tops its a problem with the fuel mixture i.e. too rich. what are the spark gaps for NGK Rs? they are .70mm. cheers
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#3
23-05-2010, 07:03
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how old are the plugs?? i think for piece of mind i would change them anyway, ive had similar trouble before with a dodgy spark plug, also was the problem there brfore you changes the plug leads, as our forklift at work used to run on 2 cylinders, untill you revved it, and that was leads.
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#4
23-05-2010, 09:48
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just quickly about the plugs.
being an NGK r really doesnt say much about the plug. Its detailed specifications are buried, encoded in the part number, for example bcr6es and bcr7es. the numbers relate to the heat range of the plug a 0.7mm gap shouldnt cause any problems although for mild tuning is a bit narrow. From memory until you're running aproximately a bar then a 0.8/9 mm gap did people fine with the heat range 7 plugs.
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#5
23-05-2010, 11:42
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they are bcr8es plugs. ive set them to .9mm...
the car is running 1 bar of boost. i will put them in today and fingers-crossed it will work.
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#7
23-05-2010, 14:30
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ye, 0.7 on 8s is right for that boost
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