Secrets to changing sparkplugs...BBC
08-06-2019, 03:30 PM
#1
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Secrets to changing sparkplugs...BBC
Okay, I am looking for secrets (not offering solutions) to changing Mercruiser Big Block plugs with Gil exhaust risers installed.
I have twin bored/stroked 454s in a Formula 311 and I can barely see 4 of the 16 plug wires...let alone see/access the plugs.
Are there some secrets?
And I thought it was tight under the hood of my twin turbo Nissan 300ZX!!!
I have twin bored/stroked 454s in a Formula 311 and I can barely see 4 of the 16 plug wires...let alone see/access the plugs.
Are there some secrets?
And I thought it was tight under the hood of my twin turbo Nissan 300ZX!!!
08-06-2019, 03:37 PM
#2
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Pay someone to do it, the best money you can spend..
...........see this another +++++ for CMI sweepers........
...........see this another +++++ for CMI sweepers........
08-06-2019, 03:54 PM
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08-06-2019, 04:20 PM
#4
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check to make sure they change them all... and not just by seeing 16 dirty plugs on a counter.
08-06-2019, 11:29 PM
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Think outside the box a little.
use a hose to go over the plug so you can spin it out and in. Works great.
removing wires done by feel. Putting them back on same way with last snap being a little pressure with just your thumb
to loosen plugs use rachett where possible offset box wrench from below where needed. Tighten same to get plugs out and started back in use rubber hose trick.
use a hose to go over the plug so you can spin it out and in. Works great.
removing wires done by feel. Putting them back on same way with last snap being a little pressure with just your thumb
to loosen plugs use rachett where possible offset box wrench from below where needed. Tighten same to get plugs out and started back in use rubber hose trick.
Charter Member
08-07-2019, 07:14 AM
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I have gils and can actually get in the bilge with ease. Gils absolutely suck for plugs. I made a special tool to get to mine but likely wouldn’t work if you can’t sit in front of the engines. But it’s a cut and trimmed chainsaw tool. Works perfect and makes it easy.
