Spark Plugs.
#1
Staging Lane
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Spark Plugs.
95 Z28 148K on FACTORY plugs, looking to change them. Rear passenger looks like ill have to pull the whole damn engine out the car Any tips on doing this? or should i just buy 5 spark plugs at the store and give up the ghost on this one?
#2
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Just did the plugs on my 95 a few months back, i ended up dropping the y pipe to get to some of them. Some are much easier from under the car, some are easier from the top...it goes on a plug by plug basis. The wire routing was what really made it a pain for me
#3
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hell honestly id leave the damn things in there but im pretty sure a nasty tick is coming from the rear passenger plug, and they are factory plugs so might as well just go ahead and throw some NGKs at it and call it a day.
#4
148k is well beyond service life of a plug. Just replace with same plug and forget about plugs for another 100k mi
if plug swap does not resolve your "tick" from rear cyl may be a broken/missing exhaust manifold bolt. look/feel around rear bolt when swapping plugs
if plug swap does not resolve your "tick" from rear cyl may be a broken/missing exhaust manifold bolt. look/feel around rear bolt when swapping plugs
Last edited by BALLSS; 12-04-2014 at 11:23 AM.
#5
TECH Fanatic
You mean 100K miles, plugs today easily last that long if you're not running rich or have other mechanical issues. I changed the plugs in my '98 silverado at 168K, they were original as well as the wires. Didn't run any different but they were smoked.
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I looked under there today, so far no broken bolt or anything out of the ordinary, i really think its a loose/bad plug.
#7
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For real, if it aint skipping i usually wont change them.
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#8
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plugs arent that bad as people say. it is a tight fit. did all but one from under that car. they will be a pita to get off because the threads will have some rust on them. use antiseize on the new plugs and dielectric grease on the boots to make them go on and come off easier. took me about 2 hours to do.
#9
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#10
TECH Fanatic
Another thing that helped me, I cut a spark plug socket in half and bored out the center so the plug could protrude through, then I could get a wrench on the socket and get them out that way. Although I have headers, I've never done them with the stock manifolds.
#11
yeah did the same thing for my headers...although I suspect this would help any hard to get to plug with stock manifolds. once you turn it with a box wrench to loosen, plug should then just unscrew by hand