Plugs Fowled

[Don St Peter]

Decided to remove, clean & regap plugs on my original 40 Ply engine. I was suprised to see a lot of fresh oil on the # 1 & 3 plugs while the rest are clean. Can you guys tell me what to suspect? I've not noticed the car smoking on startup or when running.

Thanks

Don

[Don Coatney]

Decided to remove, clean & regap plugs on my original 40 Ply engine. I was suprised to see a lot of fresh oil on the # 1 & 3 plugs while the rest are clean. Can you guys tell me what to suspect? I've not noticed the car smoking on startup or when running.

Thanks

Don

Did you do a compression test while you had the plugs removed?

[Don St Peter]

When I get my brake job done, I intend to take it done for a compression test of each cyl. Would you guess a ring job is needed, or would you suspect something else assuming low compression on the 2 cyl. with oil on plugs?

Thanks

Don

[Rodney Bullock]

Don st peter, you have the original engine 201 right. I have a 1940 Plymouth however my motor is out of a 1952 Plymouth. maybe it's time for an upgrade. Oil on the plug "can't be good"

[Reg Evans]

Did you remove the plugs after running the regapped plugs? Maybe they are OK now.

[greg g]

How fouled were they??? Maybe you can get some good out of running set of plugs with a hotter heat range. The plugs retain the heat longer helping to burn off the fouling materials. If its running and driving well and not blowing a lot of smoke or making untoward noises, you might want to spend a few bucks on plugs rather than a whole mess of pre incentive bucks, saving as much as your cash as possible.

[moparalltheway]

Low compression could be caused by a burnt or bent valve or compression ring. Normally an oil ring problem will smoke all the time. A head problem will smoke on start up. Could be oil getting by the valve stem while not running?

[rolliejoe]

If you have an air compressor at home a leakdown test will let you know if you have bad rings, valves, or a head gasket. Don't ask me how i know.