glow plugs burning out

Submitted: Friday, Jun 17, 2016 at 15:55

ThreadID: 132776 Views:3290 Replies:4 FollowUps:7

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Jerry N

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

Reply By: Bigfish - Saturday, Jun 18, 2016 at 07:32

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

AnswerID: 601536

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

FollowupID: 871173

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

FollowupID: 871174

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

FollowupID: 871242