I just went outside to do a quick inspection under the hood on my 86 GM and I heard a small constant ticking saw every one of my plugs lighting up at the little spot where they are exposed and arcing onto the exhaust manifolds. I checked all of the gaps and they are good and the plugs themselves look fine. The plugs are NGK v-power and the plugs it had before were a set of Champions. Is there any way that the NGK plugs are in the wrong heat range or just don't work well with this car? They're only about 4 months old. I didn't get a chance to check the timing either, would that cause resistance in the plugs if it was set wrong?
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"It is the soldier, who salutes the flag, who serves under the flag, and whose coffin is draped by the flag, who allows the protester to burn the flag."
-Father Dennis O'Brien, USMC -
replace the spark plug wires.....use dielectric grease on the boots
1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
2006 Lincoln Town Car Signature. Stock for now
1989 Ford F-250 4x4 much much more to come, sefi converted so far.
1986 Toyota pickup with LSC wheels and 225/60/16 tires.
2008 Hyundai Elantra future Revcon toad
1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)
please be patient, rebuilding an empire!
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The wires are also only about 4 months old and are the 8mm MSD street fires and I used the grease on the boots. If they had too much resistance wouldn't they want to arc onto something before reaching the plugs? I checked them in the dark and the only arcing I saw was on the plug, the wires never lit up."It is the soldier, who salutes the flag, who serves under the flag, and whose coffin is draped by the flag, who allows the protester to burn the flag."
-Father Dennis O'Brien, USMCComment
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Try using Ford Racing wires, everyone here seems to rave about them.Comment
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Could be too much resistance in the plug itself, or carbon tracks or other dirt on the side of the plugs. Way too big of a gap might also cause that. Should be right around .052 if I remember right. Its on the fan shroud. I've never tried fancy plugs in my cars, but some engines simply do not like certain plugs. Cheapo Motorcraft copper core plugs run fantastic in these things though.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
Everything looks like voodoo if you don't understand how it worksComment
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Your plugs are cracked. Replace them. When you buy replacements, carefully inspect the packaging for any signs of them being dropped. If there are any, find another package.
Also, when you are installing them, make sure you don't cock the socket over them (socket gets wedged on the plug if you put it on or remove it at an angle) as that will crack them. If you hear a crack or pop when you are doing this, you just destroyed a plug, replace it.
Alex.Comment
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Its either bad plugs or wires... new doesn't mean good.Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
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85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereoComment
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I noticed the gaps in the Champions are quite a bit smaller than the NGKs. I'm gonna try putting the Champions back in and see how it acts. Hopefully I just got the wrong type of plug for this engine."It is the soldier, who salutes the flag, who serves under the flag, and whose coffin is draped by the flag, who allows the protester to burn the flag."
-Father Dennis O'Brien, USMCComment
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Plug brand has nothing to do with the gap. You gap it to what the spec is, should be .052 I think. Its on the sticker on the fan shroud.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
Everything looks like voodoo if you don't understand how it worksComment
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The arcing is still happening with the Champion plugs. I don't have a gap tool to check the gaps either. I still don't see the wires lighting up but I can see about 4 very small leaks shooting out of the (street fire) coil onto it's own housing. I'll have to check the gaps of the plugs when I get the tool on Monday. I can hear a slight pinging coming from the engine too, and I already run premium gas. I know the timing might cause pinging but is it possible for the timing to cause resistance in the ignition system? Also, what's the preferred timing on this engine as a daily driver?"It is the soldier, who salutes the flag, who serves under the flag, and whose coffin is draped by the flag, who allows the protester to burn the flag."
-Father Dennis O'Brien, USMCComment
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Sounds like you need a new coil. And wires won't hurt either. While your at the store buy a gap tool. Wire prefered. Not a tapered or flat stamped steel gapper.
Alex.Comment
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Timing should be 10-12 btdc with the SPOUT connector disconnected.Originally posted by dgouge773 View Post
Lookie here...
http://grandmarq.net/vb/showthread.php?t=2150291 Mercury CP, Lopo 302, AOD, 3.08LSD. 3g upgrade, Moog wagon coils up front, cc819s in the back. KYB GR-2 police shocks. Energy suspension control arm bushings. Smog deleted.Originally posted by gadget73
93 F-150 XLT, 302, ZF 5-spd from 1-ton, 4wd.
Daily--07 Civic Coupe. Bone stock with 25k miles
Wife--14 Subaru Outback. 6-speed.
95 Subaru Legacy Wagon--red--STOLEN 1/6/13Comment
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I'm gonna take the wires off tomorrow and test the resistance. I have another question I forgot to mention, when I got the msd wires from Summit, they apparently tried to do a favor and had the boots on the wires already but the coil wire was cut too short. I ended up using the coil wire on one of the cylinders and a regular plug wire on the coil. Would this cause any problems?
91waggin, I checked the timing and it was at 5 BTDC and I got it to about 7 or 8 BTDC and the distributor can't turn clockwise anymore to get it to 10-12 because the ignition module is hitting the engine. Is my distributor gear a tooth off?"It is the soldier, who salutes the flag, who serves under the flag, and whose coffin is draped by the flag, who allows the protester to burn the flag."
-Father Dennis O'Brien, USMCComment
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shouldn't matter. Coil and plug wires are made from the same material.
If you can't get to 10 before hitting the thermostat, the distributor is one tooth off.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
Everything looks like voodoo if you don't understand how it worksComment
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I set the #1 cylinder at TDC and checked the rotor and it was pointing toward the #8 tower. I turned the distributor shaft a few times until it fell into place at #1 and tightened the distributor. I turned it on and plugged the connector back in and it finally ran like a real 302. I hooked up the timing light and it was right at 10 BTDC with room to move either way if needed later on. I let it warm up and checked the plugs and they weren't arcing anymore. The coil that was shooting out of 4 spots before also stopped arcing. The car had a hesitation when I would attempt to rev the engine and now it revs up fine. On top of everything else, the exhaust finally smells normal. I can't wait to take it out on the highway. I'm glad I don't have to put out another $100 for a tune up yet. Thanks everybody."It is the soldier, who salutes the flag, who serves under the flag, and whose coffin is draped by the flag, who allows the protester to burn the flag."
-Father Dennis O'Brien, USMCComment
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