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Steve B.

Removing spark plugs

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Steve B.

95 Merc 350 EFI.

This has probably been discussed, but thought I'd ask. Of course, the exhaust manifold wont let a socket get a clean bite on a plug.

Any hints how to do this simple job without removing the exhaust manifold?

The one I broke getting out doesn't look too bad though. Also, they are NGK BR6FS, any recommendations for a good replacement? I"m thinking of trying Accels or Autolites.

Thanks in advance,

Steve B.

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Steve B.

95 Merc 350 EFI.

This has probably been discussed, but thought I'd ask. Of course, the exhaust manifold wont let a socket get a clean bite on a plug.

Any hints how to do this simple job without removing the exhaust manifold?

The one I broke getting out doesn't look too bad though. Also, they are NGK BR6FS, any recommendations for a good replacement? I"m thinking of trying Accels or Autolites.

Thanks in advance,

Steve B.

So, I bought a longer spark plug socket thinking that might help. It was worse because it was thicker.

Ended up going to Lowe's and found a nice "thin" wall socket that made the job a breeze !

Only one had ever been replaced. All others original over 1000 hours on engine. Most looked great.

Right tool for the right job as they say,

Steve B.

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NorCaliBu

Use the NGK TR5 plug instead. The BR6FS doesn't extend deep enough into the chamber.

:thumbup:

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martinarcher

That thin walled socket is certainly the way to fly.

Not an NGK fan...something about putting a Japanese plug in my American V8 that just doesn't feel right. LOL.gif

I use Autolite's in my boat. I know quite a few Corvette nuts that run Autolites exclusively and swear by them for GM motors. I've had great luck with them and you sure can't beat the price.

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Nitrousbird

NGK is the way to go, period. I run the TR55 in my boat and truck, and TR6 in my Formula Firebird. Run them in my wife's Audi as well (which is now th factory suggested plug and what the dealer would put in for the 2.0T replacing the POS Bosch plug).

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alanks98

So, I bought a longer spark plug socket thinking that might help. It was worse because it was thicker.

Ended up going to Lowe's and found a nice "thin" wall socket that made the job a breeze !

Only one had ever been replaced. All others original over 1000 hours on engine. Most looked great.

Right tool for the right job as they say,

Steve B.

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alanks98

what size thin wall socket did you buy to fit?

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Steve B.

what size thin wall socket did you buy to fit?

Alan, it's a 5/8", 12 point I got from Lowe's. I went there, bought the first one, thinking it would be fine. Turns out it actually runs into the block more than anything.

So, went back, and darned if they didn't have the same size in a much thinner walled version. I was skeptical, but bought it.

The thinner one makes it a breeze. Goes on solidly. I use about a 6 inch extension, then the socket wrench. Only $4.87. Hope that helps,

Steve B.

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alanks98

Alan, it's a 5/8", 12 point I got from Lowe's. I went there, bought the first one, thinking it would be fine. Turns out it actually runs into the block more than anything.

So, went back, and darned if they didn't have the same size in a much thinner walled version. I was skeptical, but bought it.

The thinner one makes it a breeze. Goes on solidly. I use about a 6 inch extension, then the socket wrench. Only $4.87. Hope that helps,

Steve B.

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bretski75

Thats good to know. I ended up taking a grinder to mine to make it a thin wall. Had I known I would have run to Lowe's

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