Argument at work: Too much plug gap?
Argument at work: Too much plug gap? I was helping a guy out at work who just changed his plugs but forgot to gap them. He says his car turns over but doesnt start the first try, it takes him 2-3 tries to start his car. I said maybe the gap is too big, some people at work seem to think it has nothing to do with the ignition sys.
WHAT DO YOU THINK?
WHAT DO YOU THINK?
Tell them they are full of ****.
Call an autoparts store and ask for the gap for the particular vehicle you are working on. Then tell the guy that he needs to gap them to specs.
Call an autoparts store and ask for the gap for the particular vehicle you are working on. Then tell the guy that he needs to gap them to specs.
Originally Posted by zracer28
Tell them they are full of ****.
Call an autoparts store and ask for the gap for the particular vehicle you are working on. Then tell the guy that he needs to gap them to specs.
Call an autoparts store and ask for the gap for the particular vehicle you are working on. Then tell the guy that he needs to gap them to specs.
TECH Fanatic
Joined: Nov 2004
Posts: 1,118
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From: TX
It must be that time of the season. I just changed my plugs today. I swapped NGK's for those same Delco iridiums. There's a bunch of stuff floating around about those Delco plugs. I came upon a service bulletin of some sort warning against adjusting the gap on em, said they should all come gapped at 40 and if they're not, take it back. They dont look too fragile, not sure why they're not supposed to be adjusted but I just checked em all to be about 40 and put em in. I didnt have any trouble with the NGK's a few of em were under gapped so i just opened them up to 55 as was suggested on this forum. Anyway, we'll see what happens when I turn the key tomorrow. Good luck with your co-workers.
Originally Posted by OldeSkool
It must be that time of the season. I just changed my plugs today. I swapped NGK's for those same Delco iridiums. There's a bunch of stuff floating around about those Delco plugs. I came upon a service bulletin of some sort warning against adjusting the gap on em, said they should all come gapped at 40 and if they're not, take it back. They dont look too fragile, not sure why they're not supposed to be adjusted but I just checked em all to be about 40 and put em in. I didnt have any trouble with the NGK's a few of em were under gapped so i just opened them up to 55 as was suggested on this forum. Anyway, we'll see what happens when I turn the key tomorrow. Good luck with your co-workers.
TECH Fanatic
Joined: Nov 2004
Posts: 1,118
Likes: 0
From: TX
ok, just went for a 30 minute drive. AC Delco iridium plugs. They were gapped at .040 out of the box, give or take .002 and as per the service bulletin I found, I just left them alone and installed them.
I felt little to no difference in engine performance on my drive, and keep in mind I went from long tube headers and NGK plugs to stock manifolds, cats and Delco plugs.
So unless your friend got a bad set or something, I dont think its his plugs.
I felt little to no difference in engine performance on my drive, and keep in mind I went from long tube headers and NGK plugs to stock manifolds, cats and Delco plugs.
So unless your friend got a bad set or something, I dont think its his plugs.
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Originally Posted by SlpLS1
it could also.. have to do with fuel.. is it a hard start... or just plain out wont start unless he CRANKS it over 3 different times.. when i say that i mean crank... stop.. crank.. stop.. crank
Originally Posted by slow
make sure the ECT sensor wiring is connected.
I have forgot to reconnect this sensor, and the car does a similar hard start.
ryan
I have forgot to reconnect this sensor, and the car does a similar hard start.
ryan
I gapped all my AC Delco Iridiums to the factory .060 spec. The box they came in said to gap to specific application. I also left my ECT disconnected. The tipoff was when I fired it up and the engine was cold. The temp gauge read ~150.
Originally Posted by slow
Engine Coolant Temp sensor.
It is located at the front of the drivers side head, and is easily broken, or disconnected during a plug swap.
Ryan
It is located at the front of the drivers side head, and is easily broken, or disconnected during a plug swap.
Ryan