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spark plug removal ideas neede

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Old Jul 1, 2013 | 02:06 AM
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istmir1969's Avatar
istmir1969
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Default spark plug removal ideas neede
I have a 1974 LS4 with A/C. I can't seem to find a way to replace the front two passenger side spark plugs. The AC unit is in the way from the top and the bottom from what I can see. I will take any suggestions short of removing the AC unit.

Thank you,

James
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Old Jul 1, 2013 | 03:36 AM
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jack it up, reach up , pretty easy then
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Old Jul 1, 2013 | 08:36 AM
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Take right front whel off. Go through the opening above A arm.

just did mine on my 71 454,with AC.

Good luck.

Roger
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Old Jul 1, 2013 | 12:51 PM
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Exactlly right! You may need a swivel adapter to plumb under the A/C compressor a bit; but removing the right front wheel is the ticket.
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Old Jul 1, 2013 | 12:58 PM
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I second the use of a swivel/universal joint adapter.
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Old Jul 1, 2013 | 04:25 PM
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Originally Posted by MelWff
I second the use of a swivel/universal joint adapter.
.... got one of those too, I also have the special jointed twist ratchet for spark plugs, works great with my LS4 with A/C.
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Old Jul 1, 2013 | 09:46 PM
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When the engine is dead cold, on a smallblock at least, you can reach those plugs from behind the compressor. Not from directly above.
Yoga classes help
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Old Jul 1, 2013 | 10:59 PM
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by the time you have the tire off, you could have laid on your back , looked up, had a clear look at the plugs, reached up and swapped them
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Old Jul 1, 2013 | 11:03 PM
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Originally Posted by roger3
Take right front whel off. Go through the opening above A arm.

just did mine on my 71 454,with AC.

Good luck.

Roger
What he said. Piece d' cake.
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Old Jul 2, 2013 | 10:22 AM
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Yep on my '68 BB, drivers side no problem.
Passenger side front two plugs under the AC compressor a different story.
You got to replace from underneath the car or through the wheel opening with the tire removed.
Not a driveway job. They'll come out but gettin em back in is a feat.
I spent a whole lotta time dickin with the last plug to get it started by hand. I like to start by hand so I know they are threading in properly.
I can not get the proper "feel" by starting the plugs inserted into the socket.
Once you look at it from underside or through wheel well the job becomes a whole lot easier.
A long extension makes it a snap through the wheel well.
Master tinkerer minimal progress
Marshal
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Old Jul 17, 2013 | 12:52 AM
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Thank you all for the suggestions. I went the "pull the wheel off" route and it worked. Thank goodness for small wrist and long fingers.
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Old Jul 17, 2013 | 12:55 AM
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Have your wife do it. Her hands are probably smaller.
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