spark plug recommendation

[Russ]

I've got a couple of cylinders on my 200 that burn a little oil and will foul the plugs after a while. I am presently using autolite 46 plugs. Do any of you have some recommendation for plugs [ brand and number] that would less likely to oil foul?
Thanks,
Russ

 

[Anonymous]

I recently replaced the Autolite 45s with Bosh Platinum 6200s at .035

 

[Titleist16]

Anything but Bosch!

 

[Anonymous]

hehe

 

[Anonymous]

I just got brand new autolite platinum 46's. Seem to be working good.

 

[Anonymous]

I wasn’t aware autolite made platinum

 

[Anonymous]

why's bosch bad?

 

[FrankBoss]

I still have points and I'm using Bosch 7551 with good results. I havent anything good to say about autolites.

Frank

 

[Anonymous]

If you use an MSD on your car.......



.....It won't matter what plugs you use, they will still fire.
Even with the ground electrode removed.

 

[Russ]

Back to my question...does anyone have a recommendation as to a plug more resistant to oil fouling than an autolite 46?

 

[Anonymous]

Russ, if your engine burns so much oil it fouls plugs, ANYTHING will be a bandaid untl you stop the oil usage (new rings, valve guides)

Ever try "non foulers" between the plug and head?

 

[wsa111]

Russ, the autolite 46 is one of the least expensive plugs that you can purchase. I like NGK iridium WR51X, 7510, but they would be a waste of money in an oil burner.

I would go to the parts store & purchase an oil fouler adapter to space the plug out of the combustion chamber. I have used this type of adapter before when I couldn't afford to rebuild the engine.

If your fouling condition is mild, you can enlarge the flame travel hole where it exposed to the combustion chamber, also you may have to go to a colder plug since you are creating a longer heat path for the plug to run at the proper temperature.

Just use the adapter in the cylinders which foul plugs.

Have been down your road many years ago, you got to do what you got to do.William

 

[Titleist16]

I had a bad experience with one of the center electrodes of the Bosch Platinums breaking of and falling into my rebuilt engine, damaging my piston and valves. I'm not saying anything bad about Bosch now but we'll see if that changes when I get a response back from them on whether or not they will pay for the damages.

 

[x21]

When a few of my cylinders were fouling plugs with oil, I used special "oil burning" plugs. I dont know how bad your situation is, but ordinary plugs got fouled within a month. After switching to those oil buners, I never really had that problem again. I dont recall the brand, but they should be sitting in my 68 back home still. I now have a rebuilt motor, so I have no use for them anymore.

 

[Anonymous]

Looking back, my 1970 maverick with a 170 burned a quart of oil every 50-100 miles, and I never changed plugs, or even looked at them, the whole two years I drove it. It never failed to start and run, and run well, actually. It didn't have much compression either.

Maybe you have ignition problems.

 

[SixFoFalcon]

I don't claim any specific knowledge on the subject, so I'll pose a question for the elders. Would a hotter plug help with the oil fouling?

 

[Anonymous]

Would a hotter plug help with the oil fouling?

Yes, but it is hard to find anything hotter than an Autolite 46 or a motorcraft BRF92.

The other solution is make the spark hotter.