Spark plug boot stuck
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Supreme Member

Joined: May 2002
Posts: 1,333
Likes: 1
From: Texas
Car: 1991 Z28 Convertible
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.23 with Eaton posi
Spark plug boot stuck
Changed out 7 of 8 plugs yesterday. Could not get the boot off plug from cylinder #2 (second plug from front on pass side?). Its a straight boot. I had a hard time getting the boot off another plug. Yanked on it too hard and pulled the wire out of the boot with the metal conductor still attached to the end of the plug (and yes I was pulling on the boot the whole time). Did not want to revisit the same scenario with the other plug so I just left it alone.
I tried to pry off the boot, but its so damn hard to get any leverage underneathe the 305.
Any ideas. I have new plug wires/boots coming in a few days, so I don't mind completely destroying the old wire trying to get it off. Any ideas? Maybe I should just cut through the boot.
I tried to pry off the boot, but its so damn hard to get any leverage underneathe the 305.
Any ideas. I have new plug wires/boots coming in a few days, so I don't mind completely destroying the old wire trying to get it off. Any ideas? Maybe I should just cut through the boot.
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Joined: Feb 2003
Posts: 263
Likes: 1
From: White Lake, MI
Car: 89' IROCZ
Engine: 5.7 L98
Transmission: 700r4
Try some liquid wrench spray under the lip of the boot, let it sit and then twist until you can rotate the boot on the plug then it should pull off.
Thread Starter
Supreme Member

Joined: May 2002
Posts: 1,333
Likes: 1
From: Texas
Car: 1991 Z28 Convertible
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.23 with Eaton posi
Yeah..I've been using dielectric grease on the new plugs. I'm prob just going to cut it off when I get my new spiral core wires. I've done a ton of things to cars but I've never changed the plugs out before. Definately a learnign experience. I just realized the other day that the plugs I got were gapped to .030....I didn't gap them to .035 before installation...so now I've got to pull them all again and gap them and re-install them. Oh well..at least I'm learning and saving $90 from not having a shop do it.
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Joined: Mar 2000
Posts: 13,414
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From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
I agree with RJR... put a TON of grease inside those boots. Those little packets that come with plug wires are never enough.
I even smear some extra dielectric on the ceramic of the spark plug for more insurance.
My first set of MSD 8.5mm wires tore the boots! The wires were fine, but the lastmost 1/4 inch tip of the boots stayed glued to the plugs... and I had put a thin film of dielectric on there. MSD fixed 'em for free (I love that company) for me. Since then, it's been 4 MSD wire sets later, and I over-do the dielectric like crazy, and it's never happened again.
I even smear some extra dielectric on the ceramic of the spark plug for more insurance.My first set of MSD 8.5mm wires tore the boots! The wires were fine, but the lastmost 1/4 inch tip of the boots stayed glued to the plugs... and I had put a thin film of dielectric on there. MSD fixed 'em for free (I love that company) for me. Since then, it's been 4 MSD wire sets later, and I over-do the dielectric like crazy, and it's never happened again.
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