glow plug replacement
Thread Starter
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i ain't rite
Joined: Mar 2005
Posts: 65,569
Likes: 5,606
From: Marlboro Mental Hospital.
glow plug replacement
it was bound to happen sooner or later. after 18 years, my 88 has been getting harder to start these past few weeks, and today it just laughed at me. the wts light went from 18 seconds all these years to 4 seconds this morning. so it is time. i know it's the gp's, cause if i plug it in, it fires rite up.
i got a set of BERU ZD9's, and need a few pointers. air to blow off the top of the motor is a given, as is the never-sieze for reinstall, 1/4 socket set with swivels for removal, and vacuum hose to use after the plugs are cracked loose. my biggest question is, is it better to do this on a cold engine, or on a warm engine?? i am thinking cold, because everything will be a tad smaller, correct??
also, should i use PB Blaster before i try to crack them loose??
i got a set of BERU ZD9's, and need a few pointers. air to blow off the top of the motor is a given, as is the never-sieze for reinstall, 1/4 socket set with swivels for removal, and vacuum hose to use after the plugs are cracked loose. my biggest question is, is it better to do this on a cold engine, or on a warm engine?? i am thinking cold, because everything will be a tad smaller, correct??
also, should i use PB Blaster before i try to crack them loose??
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
I do mine cold only because I don't like to get burnt.
I run mine through the car wash the evening before and hose off the engine to get as much crud off as I can.
Then I blow out the area around the glow plugs to get any loose stuff out with air.
A dose or three of PB Blaster is never a bad idea.
Actually I hit it before I start them out, then a couple of small blasts as I unscrew them. Makes for easier removal. If one is acting tight I even spray it and run it back in to get the PB down in the threads in the head. Makes for easier reinstall with the new ones.
Yes, don't forget the never-sieze.
I run mine through the car wash the evening before and hose off the engine to get as much crud off as I can.
Then I blow out the area around the glow plugs to get any loose stuff out with air.
A dose or three of PB Blaster is never a bad idea.
Actually I hit it before I start them out, then a couple of small blasts as I unscrew them. Makes for easier removal. If one is acting tight I even spray it and run it back in to get the PB down in the threads in the head. Makes for easier reinstall with the new ones.
Yes, don't forget the never-sieze.
Thread Starter
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i ain't rite
Joined: Mar 2005
Posts: 65,569
Likes: 5,606
From: Marlboro Mental Hospital.
OK!!! ALL DONE!!!
and all the 18 year old glow plugs were still working. 1 was cracked, so it only heated 1/2 way up, and 1 was a son of a gun to get out, it was only in half way, and the new one only went in half way, and it fought me all the way. i think that hole is cross threaded.
anyhoo, the reason the glow circuit was not working was bad connections. there was only 1 of the 8 end caps on the wiring harness that was good. i ended up replacing all of them with .173 female crimp connectors, and now the wts light is a solid 18 seconds, and she starts rite up, no more rumblin and grumblin and indian smoke signals.
and all the 18 year old glow plugs were still working. 1 was cracked, so it only heated 1/2 way up, and 1 was a son of a gun to get out, it was only in half way, and the new one only went in half way, and it fought me all the way. i think that hole is cross threaded.
anyhoo, the reason the glow circuit was not working was bad connections. there was only 1 of the 8 end caps on the wiring harness that was good. i ended up replacing all of them with .173 female crimp connectors, and now the wts light is a solid 18 seconds, and she starts rite up, no more rumblin and grumblin and indian smoke signals.
Thread Starter
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i ain't rite
Joined: Mar 2005
Posts: 65,569
Likes: 5,606
From: Marlboro Mental Hospital.
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Senior User
Joined: May 2001
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glad to hear yours all came out easy also i was worried after hearing the horror stories but all mine turned rite out.
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Thread Starter
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i ain't rite
Joined: Mar 2005
Posts: 65,569
Likes: 5,606
From: Marlboro Mental Hospital.
well, it took a total of 7 hours, but i took 4 breaks, and had to move the truck between sides because there is only 9 ft wide in the 24 ft wide garage due to all the crap thats in there.. the tire step will only fit on one side, then the truck has to be moved over to do the other side. i had to remove the turbo pressure plenum, and the air intake, rewire all the bad power connections, and while i was up there, i also stripped the old air box mounting brackets off the top of the motor. i also checked some other electrical things i was putting off, so it was really not that bad, more of a pain in the butt. the only real bad parts were the 2 rear plugs, the turbo was in the way for ratchet use, so i had to use a wrench on them, and the 2nd plug on the passenger side was cross threaded from the factory, so i had to be easy with that one.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
well it looks like our 9" snow is going to turn to about 3".
Since I hae not even had to plow once this year ( equates to made no dollars ) maybe I should load up and come visit you in Jersey.
I think I was in Laurence Harbor back in the late 70's when I used to drive truck.
Stopped there to visit an old girl friend from school.
Since I hae not even had to plow once this year ( equates to made no dollars ) maybe I should load up and come visit you in Jersey.
I think I was in Laurence Harbor back in the late 70's when I used to drive truck.
Stopped there to visit an old girl friend from school.
Thread Starter
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i ain't rite
Joined: Mar 2005
Posts: 65,569
Likes: 5,606
From: Marlboro Mental Hospital.
Laurence Harbor is in the better part of town. we have the beaches, and the quiet working class neighborhoods. its the same thing here with "BLIZZARD OF 2006" the weather idiots are still calling it that, and talking about the 9-20 inches of snow we are going to get, and how there is at least 12 inches on the ground already. i don't know where it is, but it ain't here. we only have a dusting so far. no more than 3 inches on the streets.
