(help me) Read My Plus + Ques.

[karmavore]

I just pulled my plugs. They've been in for maybe 500-600 miles tops. What do you think? Not sure about the red deposits.





Also, I've never gapped the two pronged plus before. Since the manual calls for a .9-1 mm gap I gapped each so there is between a .45 and. 5mm gap between the end of each prong and the electrode. Is that right?

Luke.

[karmavore]

I was reading on google that the red can be due to fuel additvies. Sound right? Since I've ben using octane booster I bet that's what it is.

Luke.

[Dr.Hess]

I don't think that is the right way to gap them, Luke. From my understanding of the multiple electrode thing, the arc only goes to one electrode anyway at any particular time, not split between the two (or 4) electrodes. What was the gap when you started? I think you are better off using a good NGK single electrode plug. But, stick them in and see what happens.

Don't know about the weird color. Could be a fuel additive from the gas company.

Dr.Hess

[Zhastaph]

Yup, I used to use Octane Booster in my Scooby and when I changed the plugs they looked just like that.

[NJGSX96]

Red or brown deposits can be either timing is off or fuel/oil additive is used. Since you said you used octane booster, I would say that is the cause. Clean them off, reinstall and stop using octane booster. Substitute it with Sunoco 94 instead. Going from 93 to 94 will raise the octane more than 93 and octane booster will anyway.

Gap each side accordingly, so if the manual says .9-1.0mm (.035-.039 in), then do that on each electrode.

I bet you will find some better performance from properly gapping them and cleaning the deposits off.

[karmavore]

Thanks a million as always fellas!

Luke.

[cnh1990]

Hess,
The twin electrode NGK are an oem part for SE's.
It is the only plug to use. others do not last as long.
Use a wire gauge only no flat blades for gapping.

I usually replace plugs once a year or 10K miles.

KFM from the fact file has gone over 20K miles with his from what I recall.

Keen Young (an old timer) and I agree with the 10-12K replacement.

[Dr.Hess]

cnh1990 said:

The twin electrode NGK are an oem part for SE's. It is the only plug to use. others do not last as long.

Ah, yes, the BPR6EKN. I see it now. I am running Iridium BPR6EIX in my 89 non-SE.

Dr.Hess