dumb move silicon instead of dielectrick

[47silver]

was putting some dielectric grease on the sparkplug wiring connectors, moved along nicely.
after i started the car it missed below 3000 rpm. Hmmm, I happened to look at the tube of diectric grease and it was actually silicon grease used for o-rings.

I cleaned it with wd40 but it feels like a cylinder is missing, is it possible the silicon grease is shorting the plug? Is there a better method to clean to inside of the plug connectors?


the title should read di-electric not electrick

[vulcan300]

Give the inside of the connector a blast with brake and part cleaner, the spray it with contact cleaner. The Brake and Part cleaner will blast out and dissolve the gunk. The contact cleaner will finish the job and also leave some dielectric lubricant on the connector. Pull the plug and give the end of it the same treatment.

J

[Tyson Schmidt]

Di-electric grease is silicone grease.
Same thing repackaged.

[dshepp806]

Originally Posted by Tyson Schmidt

Di-electric grease is silicone grease.
Same thing repackaged.

+1,..but don't use the dielectric grease to treat your rubber......

Best,

Doyle

[88-diamondblue]

I use Dow Corning 111 or the silicone di-electric grease on my Magnecore's as they don't like staying on with out it. Has never caused a miss but when the wire doesn't seat it misses. I have had theMagnecore's for 5 years. This grease is recommended by Magnecore to allow the boots to slip on.

[47silver]

So cleaning them wont make any difference?

[JohnJL]

Silicon is light di-electric and performs the same purpose. I use silicon on electric connections to keep them limber and keep corrosion out.

[88-diamondblue]

You should check the wire and make sure there isn't a problem with the spark plug cable/connector. The grease should not be an issue unless you have so much grease in the boot that the grease keeps the connector from snapping on the spark plug. Use a q-tip to clean any remaining grease out of the connector. How old are the spark plug wires?

[47silver]

dont know the age of the wires.. they all check out about 3800 ohms.
i think #4 is not firing, when i remove it the idle or sound does not change at all.
I checked with a spark plug wire checking device and the sparks seems great, i pulled the plug and put in a spare and checked the plug and it was sparking. i am thinking valve adjustment problem i may have adjusted #4 to 35 BTDC (i have an orange mark on it. If I did would that cause the cylinder to not fire.

[burgermeister]

Originally Posted by 88-diamondblue

I use Dow Corning 111 or the silicone di-electric grease on my Magnecore's as they don't like staying on with out it. Has never caused a miss but when the wire doesn't seat it misses. I have had theMagnecore's for 5 years. This grease is recommended by Magnecore to allow the boots to slip on.

Interesting. My Magnecor wires specifically state NOT to apply silicone grease to the various boots. Clearly the Magnecor folk can't make up their mind.

I found that with the silicone grease (which I applied habitually without reading directions) the air pressure inside the boot just pushed the connector back off the distributor cap / spark plug. The metal connector hanism seems to be wimpy compared to the factory Berus. Cleaning the grease out caused the wires to stay put. Getting them off is of course a PITA now ...

[Por_sha911]

You may want to pull the plugs out to see if they're fouled. You can clean the tips of any residual grease while you are at it.

[47silver]

to recap
1. had a bad air box and installed a used one that was vacuum tested and looked great.
2. Used all new orings, injector sleeves, gaskets etc.
3. insalled everything and double checked.
4. Had a cold start valve wiring problem and repaired it.
Car started and ran ok but could tell is was missing.
5. Checked injector volume and spray.
6. Pulled wires on running motor and #4 did not seem to affect the motor.
7. Bought a tool to test spark and checked wires. The spark was ok.
8. Replaced the plugs.
9. adjusted valves (again) did them a couple months ago but thought maybe 4 was not right.
10. replaced distributor cap.
11. Checked the #4 spark plug by connecting to the spark plug wire. noticed that the spark was ok but i would classify it as limp.
12. adjusted co, but know it is not right as the car is missing.
Tonight, pulled off the boot on the spark plug wire and teh wire came out.....dont know if it was like that or i pulled it out. The wire is blue and is crimped on to a male connector that screws into the spark plug connector. Can recrimp or just get new ones?

the odd thing is above 3500 the car seems to run ok.. would a spark plug wire have that effect?