glow plugs burning out

Submitted: Friday, Jun 17, 2016 at 15:55
ThreadID: 132776 Views:1887 Replies:4 FollowUps:7
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Hi There
I have a problem with my Triton 1997 4m40 2.8 motor glow plugs keep burning out.
can anyone help
The last set did not last long
The relay stays on for about 10 to 15 seconds @ 12.85 volts
Any help will be appreciated
Nic
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Reply By: Member - Ray C11 - Friday, Jun 17, 2016 at 20:23

Friday, Jun 17, 2016 at 20:23
Hi Jerry, How long are they lasting? Are you replacing with a well known Brand? I've only replaced mine once,Ive got 140,000ks on the clock, mines a turbo, and I live in north oz where its warm, I dont know if that makes a difference.

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Follow Up By: Jerry N - Saturday, Jun 18, 2016 at 13:08

Saturday, Jun 18, 2016 at 13:08
thanks Ray
I have been using NGK and also some cheapos
The NGK s last from 2 weeks to the last one burns out at 5 to 6 weeks.
I am south west of West Aus. gets a bit cooler here at this time of year
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Reply By: Bigfish - Saturday, Jun 18, 2016 at 07:32

Saturday, Jun 18, 2016 at 07:32
Get online and join the Pajero forum of Victoria. Many triton owners there and some very clever people.
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Follow Up By: Jerry N - Saturday, Jun 18, 2016 at 13:09

Saturday, Jun 18, 2016 at 13:09
Thanks Bigfish
Will do
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Reply By: Member - ACD 1 - Saturday, Jun 18, 2016 at 20:38

Saturday, Jun 18, 2016 at 20:38
Nic

Not doubting what you have said above but...

Is the relay actually timing out after 10 sec or is there still a current to the glow plugs after the engine has fired?

When the relay is energised how much are the glow plugs getting?

Just thoughts that might help.

Cheers

Anthony
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Too many places - too little time

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Follow Up By: Jerry N - Monday, Jun 20, 2016 at 15:55

Monday, Jun 20, 2016 at 15:55
Hi Anthony

Thanks for your reply
As stated I tested the time at 15 seconds when it timed out(engine not going)
But when as you suggested when engine fired up the relay came on again and the volts were at 13.5 to 14,3 volts and timed out at 3 minutes.
I do not know if this is a normal thing on this type of vehicle .

Once again thank you Anthony
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Follow Up By: Member - ACD 1 - Monday, Jun 20, 2016 at 16:08

Monday, Jun 20, 2016 at 16:08
Nic

I am going to the farm on the weekend where I have a 97/98 triton I use to cart the firefighter around. I will check to see what it does and will post the results for you.

I was curious to see if the timer relay actually shut off as it should. If it didn't, this could explain why they are burning out.

The voltage seems about right, as that would be the battery output in prime condition.

Cheers

Anthony
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Work - a 40 hour interuption to my weekend!
Too many places - too little time

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Follow Up By: Member - ACD 1 - Tuesday, Jun 21, 2016 at 22:25

Tuesday, Jun 21, 2016 at 22:25
Nic

I was in Midland today and was talking to a mate who is the Service Manager for the DVG Group.

I asked him about this issue and he said... "Is he servicing it himself? If so is he setting the torque correctly?"

He said it is quite common to over tighten the glow plug and extend the tip too far into the cylinder which causes them to burn out. He couldn't remember the torque setting off the top of his head - but he said in the end he would seat the plug and then just nip it up.

Hope this helps.

Cheers

Anthony

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Too many places - too little time

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Follow Up By: Jerry N - Wednesday, Jun 22, 2016 at 16:44

Wednesday, Jun 22, 2016 at 16:44
Thanks Anthony

Yes I do service myself
I have been to the over tightening issue , i have done been just nipping up.

Regards
Nic
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Reply By: Member - Timnivo - Monday, Jun 20, 2016 at 20:32

Monday, Jun 20, 2016 at 20:32
Hi Jerry. This is a very well known problem around here in the cold New England area of NSW. I am not sure of the actual cause. Nearly every triton around here has had the wiring redone to a switch, so that the driver can operate the glow plugs. this was usually done by the dealers when they got sick of changing the glow plugs. 1 or 2 seconds in summer through to about 15 seconds when minus 6 or 7 degrees at this time of year works a treat on my boys 1998 MK 2.8 Triton. Good Luck. Timnivo.
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Follow Up By: Jerry N - Wednesday, Jun 22, 2016 at 16:52

Wednesday, Jun 22, 2016 at 16:52
Thank you Timnivo

I have rewired to a switch inside of the cab as you have suggested it works a treat I wait until glow plug light on dash goes out and I switch plugs off its about 3 to 4 seconds then start engine.
As you have stated that dealers in your area have been doing this so it must work.
I only have to wait and see if plugs burn out after period of time

Once again thanks

Regards Nic
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