duramax glow plug problem - Pirate4x4.Com : 4x4 and Off-Road Forum
 
Pirate4x4.Com : 4x4 and Off-Road Forum  

Go Back   Pirate4x4.Com : 4x4 and Off-Road Forum > General Tech > Tow Rigs and Trailers
Notices

Reply
 
Share Thread Tools Display Modes
Old 05-26-2012, 02:26 PM   #1 (permalink)
Dear Penis
 
brooks294x4's Avatar
 
Join Date: Nov 2008
Member # 123551
Location: Southwest PA
Posts: 969
duramax glow plug problem

so when i studded my truck, i had a glow plug break in the head and sent to the machine shop to get removed. they told me it didnt mess up any threads and and i didnt need a helicoil, but now im having a problem with the glow plug workin loose when i drive it. i tightened it last night and drove 8 miles to my buddies house and i could hear compression leaking at idle when i got there.

at the moment, pullin the head isnt an option. im gonna get a new glow plug with fresh threads and run a tap through it and try that. anyone have a problem like that or recomend a good high heat/high pressure threadlocker they could recomend. if all else fails i will helicoil it but gonna try to avoid that.
__________________
90 Jimmy 350/465/205/60/14/42's
04 Sierra Duramax ZF6 on 36's

I work hard for a living, millions on welfare depend on me...


Looking for 1 38-42" spare and rim, 16" or bigger. pm me if ya have one
brooks294x4 is offline   Reply With Quote Quick reply to this message
Old 05-26-2012, 03:00 PM   #2 (permalink)
destroyer of worlds
 
Join Date: Dec 2011
Member # 206927
Location: Pniellas Park, FL
Posts: 18
http://www.timesert.com/ Way better than helicoil. That is the FMC specified procedure for the Modulars that blow plugs.

-Rouphis
Rouphis is offline   Reply With Quote Quick reply to this message
Sponsored Links
Old 05-26-2012, 03:06 PM   #3 (permalink)
Registered User
 
Back Woods's Avatar
 
Join Date: Jun 2006
Member # 74825
Posts: 1,359
Wouldnt chasing the threads deposit material into the head?
Back Woods is offline   Reply With Quote Quick reply to this message
Old 05-26-2012, 03:27 PM   #4 (permalink)
Newbie
 
yozsi's Avatar
 
Join Date: May 2007
Member # 91857
Location: Vallejo, CA
Posts: 1,668
Send a message via AIM to yozsi
Quote:
Originally Posted by Back Woods View Post
Wouldnt chasing the threads deposit material into the head?
maybe a very tiny bit if you put some grease in the flutes to catch the bulk of it.. plus, a little bit of aluminum aint gonna hurt it.
__________________
92 Nissan Pathfinder- 3 Link SAS, 4 link rear
02 Dodge 2500 QC LB 4x4, CTD, nv241dhd, 500 hp daily.

Foreign Car Center
Vallejo, CA
yozsi is offline   Reply With Quote Quick reply to this message
Old 05-26-2012, 03:27 PM   #5 (permalink)
destroyer of worlds
 
Join Date: Dec 2011
Member # 206927
Location: Pniellas Park, FL
Posts: 18
Quote:
Originally Posted by Back Woods View Post
Wouldnt chasing the threads deposit material into the head?
Only if not done correctly. But, chasing the threads will not add metal, which is most likely the issue. The machine shop drilled the old plug out, and in the process increased the minor dia. of the hole, yielding a smaller % of thread engagement. Or something like that

-Rouphis
Rouphis is offline   Reply With Quote Quick reply to this message
Old 05-26-2012, 04:00 PM   #6 (permalink)
Registered User
 
Back Woods's Avatar
 
Join Date: Jun 2006
Member # 74825
Posts: 1,359
Add metal?

Aluminum shavings are better than steel though.
Back Woods is offline   Reply With Quote Quick reply to this message
Old 05-26-2012, 04:35 PM   #7 (permalink)
Dear Penis
 
brooks294x4's Avatar
 
Join Date: Nov 2008
Member # 123551
Location: Southwest PA
Posts: 969
did plan on greasing the tap so i catch shavings. then diabling the injector and cranking with the glow plug out to blow out whatevers left.

i work at a GM dealer and know all about time serts, but was gonna try to not drill and put too many shavings in there
__________________
90 Jimmy 350/465/205/60/14/42's
04 Sierra Duramax ZF6 on 36's

I work hard for a living, millions on welfare depend on me...


Looking for 1 38-42" spare and rim, 16" or bigger. pm me if ya have one

Last edited by brooks294x4; 05-26-2012 at 04:36 PM.
brooks294x4 is offline   Reply With Quote Quick reply to this message
Old 05-26-2012, 07:34 PM   #8 (permalink)
bobbing for fries
 
billy bones's Avatar
 
Join Date: May 2011
Member # 190574
Location: Salt City NY
Posts: 942
Check the head near where it tapers for the electrode. There may be a burr or something not allowing the plug to be torqued properly. Just a thought, I've never had one come loose on its own, but have removed dozens of broken Dmax glow plugs without having to tap the head. Only done that once. You can get 90% of them out without removing the head. Its tedious but possible.

Also, there is no timesert available that will match perfectly, you will have to re-thread the plug to match.

For the locktight, its up to you. Sure, it wont come loose, but if you ever need to replace it again, it wont come loose.

I wouldn't chase the threads with a tap, you run the risk of opening up the hole even more. Like Rouphis said. If the hole is already loose, you will only make thing worse.

If the head looks ok, try a wrap of teflon tape to tighten things up.
__________________
If everyone is thinking alike, then somebody isn't thinking.
billy bones is offline   Reply With Quote Quick reply to this message
Old 05-27-2012, 11:27 PM   #9 (permalink)
Dear Penis
 
brooks294x4's Avatar
 
Join Date: Nov 2008
Member # 123551
Location: Southwest PA
Posts: 969
well i need to figure out whats up with it now, i was driving last night after i tightened it up again and blew the glow plug completely out of the head. put the 4 ways on and limped it the 1.5 miles home, and was pissed so i didnt even look at it and jumped in my car and left. looks like some research and a good look at the head is in order for this one.

any suggestions are appriciated.
__________________
90 Jimmy 350/465/205/60/14/42's
04 Sierra Duramax ZF6 on 36's

I work hard for a living, millions on welfare depend on me...


Looking for 1 38-42" spare and rim, 16" or bigger. pm me if ya have one
brooks294x4 is offline   Reply With Quote Quick reply to this message
Old 05-28-2012, 10:26 AM   #10 (permalink)
Registered User
 
Join Date: Feb 2007
Member # 86724
Posts: 6,208
Quote:
Originally Posted by brooks294x4 View Post
well i need to figure out whats up with it now, i was driving last night after i tightened it up again and blew the glow plug completely out of the head. put the 4 ways on and limped it the 1.5 miles home, and was pissed so i didnt even look at it and jumped in my car and left. looks like some research and a good look at the head is in order for this one.

any suggestions are appriciated.

when they drilled out the old plug they got into the threads.
You've retorqued it a few times and probably started pulling the threads out.

glo plug stripped the threads and has left the building.

you're doing the timesert thing I would guess.
__________________
ko derf
87manche is offline   Reply With Quote Quick reply to this message
Old 05-28-2012, 03:46 PM   #11 (permalink)
Dear Penis
 
brooks294x4's Avatar
 
Join Date: Nov 2008
Member # 123551
Location: Southwest PA
Posts: 969
pretty much what i figured. ill probly get into it tomorrow and go from there, hopefully we have so time serts at work that will fit.
__________________
90 Jimmy 350/465/205/60/14/42's
04 Sierra Duramax ZF6 on 36's

I work hard for a living, millions on welfare depend on me...


Looking for 1 38-42" spare and rim, 16" or bigger. pm me if ya have one
brooks294x4 is offline   Reply With Quote Quick reply to this message
Old 05-28-2012, 06:06 PM   #12 (permalink)
bobbing for fries
 
billy bones's Avatar
 
Join Date: May 2011
Member # 190574
Location: Salt City NY
Posts: 942
If you do find a time sert that fits, post up the part number. As far as I know there isn't one. Been down that road before.
__________________
If everyone is thinking alike, then somebody isn't thinking.
billy bones is offline   Reply With Quote Quick reply to this message
Old 05-29-2012, 01:53 AM   #13 (permalink)
Wheeler
 
Join Date: Jan 2012
Member # 210335
Posts: 203
Try using hydraulic pipe sealant. Basically looks like a white RTV tube full of white teflon tape goo. I forget full cure time, but, it when I have used it for brake jobs I let it sit for 24 hours. It "should" hold up to the heat on the head, but, I never tried it in that app.

Something such as this:

http://www.seton.com/loctite-545andt...tings-25t.html

Though mine came in a big tube, not a little bottle. For your app. I would apply to the head threads with a Q-Tip, then lightly coat the injector threads, and then screw the injector in.

Last edited by 4x4prepper; 05-29-2012 at 01:58 AM. Reason: add a link
4x4prepper is offline   Reply With Quote Quick reply to this message
Old 05-29-2012, 08:14 PM   #14 (permalink)
Dear Penis
 
brooks294x4's Avatar
 
Join Date: Nov 2008
Member # 123551
Location: Southwest PA
Posts: 969
http://www.ebay.com/itm/NEW-TIME-SER...7404c9&vxp=mtr

took a new glow plug for my truck, 04.5 LLY, and measured the threads, it they are M10 x 1.25. our dealer does not stock this particular repair kit but it is available. im gonna order one tonight and well see how it goes when i get it.

and yes the threads are gone completely in my head. i retightened it again today to move my truck to mow grass and it blew out again in about 5 seconds.
__________________
90 Jimmy 350/465/205/60/14/42's
04 Sierra Duramax ZF6 on 36's

I work hard for a living, millions on welfare depend on me...


Looking for 1 38-42" spare and rim, 16" or bigger. pm me if ya have one
brooks294x4 is offline   Reply With Quote Quick reply to this message
Old 05-30-2012, 06:02 AM   #15 (permalink)
bobbing for fries
 
billy bones's Avatar
 
Join Date: May 2011
Member # 190574
Location: Salt City NY
Posts: 942
Cool

It's nice to know someone is finally making them! A year or two ago there was nothing. I'm gonna order a set to keep on hand, just in case.
__________________
If everyone is thinking alike, then somebody isn't thinking.
billy bones is offline   Reply With Quote Quick reply to this message
Old 05-30-2012, 06:15 AM   #16 (permalink)
D45
Registered User
 
Join Date: Nov 2007
Member # 102974
Location: NW INDIANA
Posts: 2,547
Quote:
Originally Posted by 4x4prepper View Post
Try using hydraulic pipe sealant. Basically looks like a white RTV tube full of white teflon tape goo.
There is no way this will hold the plugs in with the high compression of the Duramax, especially if the threads are gone......
__________________
'04 QC/LB, 4WD, 305/555 HO CTD, 37x13.50 Toyo MTs on BMF Sota 8, 6" Lift, MBRP 5", IceBox Intake, Air Dog 150, ATS Pulse Flow Manifold, BD Special Turbo, SMARTY SR POD, ARP Studs, T&C WILD Fuel Rail, T&C CPRV, II Dragon Fire 85% CP3, II 100HP Nozzles, Built 48RE, Bullet Proof Steering
D45 is offline   Reply With Quote Quick reply to this message
Old 05-30-2012, 03:23 PM   #17 (permalink)
Dear Penis
 
brooks294x4's Avatar
 
Join Date: Nov 2008
Member # 123551
Location: Southwest PA
Posts: 969
Quote:
Originally Posted by D45 View Post
There is no way this will hold the plugs in with the high compression of the Duramax, especially if the threads are gone......
yea at about ~17:1 compression with no threads left, nothin is gonna hold it in.

im also puttin on a new manifold on that side since the previous owner fucked up puttin in the EGT probe. so my plan is to do the timesert install, take off the old manifold, use vacuum to suck out as much shavings as possible through glowplug hole, disable all my injectors and crank it to blow the rest out, reinstall new manifold. i dont see why this process wouldnt work.

anyone else?
__________________
90 Jimmy 350/465/205/60/14/42's
04 Sierra Duramax ZF6 on 36's

I work hard for a living, millions on welfare depend on me...


Looking for 1 38-42" spare and rim, 16" or bigger. pm me if ya have one
brooks294x4 is offline   Reply With Quote Quick reply to this message
Old 05-30-2012, 06:36 PM   #18 (permalink)
Registered User
 
Join Date: Feb 2007
Member # 86724
Posts: 6,208
aluminum or steel head? I don't know shit about duramaxs.

If steel, find yourself a rare earth magnet and attach it to a stick with some JB weld. You can find 7MM ones fairly easily, should fit through your hole.
__________________
ko derf
87manche is offline   Reply With Quote Quick reply to this message
Old 05-31-2012, 10:18 AM   #19 (permalink)
bobbing for fries
 
billy bones's Avatar
 
Join Date: May 2011
Member # 190574
Location: Salt City NY
Posts: 942
Quote:
Originally Posted by brooks294x4 View Post
im also puttin on a new manifold on that side since the previous owner fucked up puttin in the EGT probe. so my plan is to do the timesert install, take off the old manifold, use vacuum to suck out as much shavings as possible through glowplug hole, disable all my injectors and crank it to blow the rest out, reinstall new manifold. i dont see why this process wouldnt work.

anyone else?
You could put a small rubber/plastic plug down in the glow plug hole to stop any shavings from getting into the combustion chamber. Since the threads only extend 1/2" from the top, and there is about 1 1/2" to where the hole gets smaller for the tip, you wont be drilling/tapping near it. Use shop air (or a small vacuum) to remove the shavings, and engine compression to remove the rubber plug.
__________________
If everyone is thinking alike, then somebody isn't thinking.
billy bones is offline   Reply With Quote Quick reply to this message
Old 05-31-2012, 06:49 PM   #20 (permalink)
Dear Penis
 
brooks294x4's Avatar
 
Join Date: Nov 2008
Member # 123551
Location: Southwest PA
Posts: 969
Quote:
Originally Posted by billy bones View Post
You could put a small rubber/plastic plug down in the glow plug hole to stop any shavings from getting into the combustion chamber. Since the threads only extend 1/2" from the top, and there is about 1 1/2" to where the hole gets smaller for the tip, you wont be drilling/tapping near it. Use shop air (or a small vacuum) to remove the shavings, and engine compression to remove the rubber plug.
never thought of plugging the hole, good idea. ill look for a plug at work, im sure i can find something, if not a ball of 3M strip calk should do the trick.
__________________
90 Jimmy 350/465/205/60/14/42's
04 Sierra Duramax ZF6 on 36's

I work hard for a living, millions on welfare depend on me...


Looking for 1 38-42" spare and rim, 16" or bigger. pm me if ya have one
brooks294x4 is offline   Reply With Quote Quick reply to this message
Old 06-02-2012, 01:00 PM   #21 (permalink)
Wheeler
 
Join Date: Jan 2012
Member # 210335
Posts: 203
Quote:
Originally Posted by D45 View Post
There is no way this will hold the plugs in with the high compression of the Duramax, especially if the threads are gone......
FWIW: Most pipe sealants will hold up to well over 3,500 psi, many to 10,000psi, and some are rated to 500 degrees F. What is the compression on a Duramax? I don't know. I would have thought it was under 3,000 psi.

You would not use it to hold something in where the threads are gone,

you use it to fill voids to prevent something from vibrating free. Where red loctite will not work (example loose pipe threads) because of the gap between thread mating surfaces, this will, and in the case of hydraulic fluids it fills the gaps to prevent push by between the surfaces.

If you have horrible threads, example Ford's 5.4L, then nothing will prevent it from popping out short of new threads or an insert. I get that.
4x4prepper is offline   Reply With Quote Quick reply to this message
Old 06-03-2012, 01:02 AM   #22 (permalink)
Dear Penis
 
brooks294x4's Avatar
 
Join Date: Nov 2008
Member # 123551
Location: Southwest PA
Posts: 969
my time sert kit came in friday afternoon, but of coarse i wasnt expecting it til monday so i didnt bring home the tools to do it. ill take a few pics and post up monday after work when i put it in.
__________________
90 Jimmy 350/465/205/60/14/42's
04 Sierra Duramax ZF6 on 36's

I work hard for a living, millions on welfare depend on me...


Looking for 1 38-42" spare and rim, 16" or bigger. pm me if ya have one
brooks294x4 is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Pirate4x4.Com : 4x4 and Off-Road Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.

** A VERIFICATION EMAIL IS SENT TO THIS ADDRESS TO COMPLETE REGISTRATION!! **

Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 06:18 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 ©2011, Crawlability, Inc.