Glowplug discovery

Submitted: Wednesday, Mar 23, 2005 at 12:42
ThreadID: 21462 Views:1738 Replies:7 FollowUps:7
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In post 21258 I asked a question on glowplugs for a 2H Diesel. Haven't got around to testing them individually yet, but have discovered that by turning the key on to glow and off, three times, the truck starts on first crank. Only takes about 5 seconds to do this and I have no starting problems.

Maybe one can wire the busbar to a switch which will then heat the element longer and then the glowplugs will last longer....?
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Reply By: Davoe - Wednesday, Mar 23, 2005 at 13:00

Wednesday, Mar 23, 2005 at 13:00
you certainly can. My module that controls the glow plugs died and the leccys just put a glow button in - said it was a fairly common fix rather than buy a 500 part
AnswerID: 103585

Follow Up By: V8troopie - Wednesday, Mar 23, 2005 at 19:51

Wednesday, Mar 23, 2005 at 19:51
Willem, if you wire the busbar directly to a switch it better be a good one, you can expect perhaps 60Amps current draw when all glowplugs are 'firing'.
Much wiser to use a relay so you don't have to run heavy gauge wire through the firewall.
My troopie has the glow timer behind the glove box, the relays are located near the brake booster on the fender inside. It had a two stage timing interval for the 2H motor, the glow light on the dash went out when the first relay switched out. The glowplugs then ran for a further timing interval on reduced voltage. I wired another glow light to the dash that told me when the second timer had timed out ( it also could be heard if one listened for the 'click'), the motor would start first go every time then.

I would no be keen on feeding too much voltage for too long to the plugs, should reduce their life span i would think.
Klaus
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Follow Up By: Davoe - Thursday, Mar 24, 2005 at 01:40

Thursday, Mar 24, 2005 at 01:40
I dont think they fitted a relay but overglowing is deffinitly not recomended and not neccesary 10 sec max in summer no glowing is needed. In winter you can eliminate that pesky double start unique to 2h motors by not glowing and turning it it over until it starts oil pressure comes up quickly and it doesnt cut out
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Reply By: muzzimbidgie - Wednesday, Mar 23, 2005 at 13:26

Wednesday, Mar 23, 2005 at 13:26
Willem. Another thing to try is wait a few seconds after the glow light goes out before starting. Also, the relay for the glow plugs is behind the glovebox. It is a very basic and crude attempt, and can be cleaned easily.
AnswerID: 103587

Reply By: Glenno - Wednesday, Mar 23, 2005 at 15:41

Wednesday, Mar 23, 2005 at 15:41
Mate of mine heats the plugs 3 times before starting. He said the exact same thing, starts first time everytime.
AnswerID: 103600

Reply By: Bob of KAOS - Wednesday, Mar 23, 2005 at 17:46

Wednesday, Mar 23, 2005 at 17:46
I bet the Ford Territory starts first time every time ;-)
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Follow Up By: Nudenut - Wednesday, Mar 23, 2005 at 18:43

Wednesday, Mar 23, 2005 at 18:43
well it aint a nissan is it?
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Follow Up By: Willem - Wednesday, Mar 23, 2005 at 20:11

Wednesday, Mar 23, 2005 at 20:11
Geez down from a Lexus to a Ford Territory.....things must be going pear shape down your way Uncle Bob! :o)
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Reply By: Lone Wolf - Wednesday, Mar 23, 2005 at 19:08

Wednesday, Mar 23, 2005 at 19:08
Willie.....

We do the same thing with the Delica in winter...... warm them up a couple of times.

Can't work out why we have the little light on the dash...... it goes out after say 3 seconds, but the relay doesn't click for at least another 4 seconds after that.

Anyway, we have had a new set of plugs, and a relay cleaned, and it still gives us curry on cold mornings. Like you said...... get the buggers nice'n'warm!

Wolfie
AnswerID: 103627

Reply By: Member - John (Vic) - Wednesday, Mar 23, 2005 at 20:49

Wednesday, Mar 23, 2005 at 20:49
Glowplugs, Now your showing your age old fella. LOL.
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Follow Up By: Willem - Wednesday, Mar 23, 2005 at 21:03

Wednesday, Mar 23, 2005 at 21:03
Yeah better to have good old age than being a young upstart, eh? lol
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Follow Up By: Member - John (Vic) - Wednesday, Mar 23, 2005 at 21:13

Wednesday, Mar 23, 2005 at 21:13
Touché !!! LOL.
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Reply By: Member - Phil G (SA) - Wednesday, Mar 23, 2005 at 20:56

Wednesday, Mar 23, 2005 at 20:56
Willem,
If you have to do that, then you do have a problem, most likely, two or more glow plugs are kaput. Its better fixing them - as I said before, the voltage that hits the other glow plugs will increase and more will fail. Your three glows is working because the preheater element in the intake is getting a good workout.

The superglow system on the '84 model works in increments - 4 seconds flat out followed by maybe another 20 seconds at lower current.

By the time it gets down to freezing in Peterborough, I think you'll have them fixed :-))

Cheers
Phil
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Follow Up By: Willem - Wednesday, Mar 23, 2005 at 21:00

Wednesday, Mar 23, 2005 at 21:00
Yeah Phil, Its on the list of must do but there are other things more important at the moment. Will be back home from the Big Trrip in mid July and then it is the dead of winter so will need to replace the glowplugs then. The Tojo is my town runabout and only used for that.
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