http://www.peachparts.com/shopforum/attachment.php?attachmentid=29782&stc=1&d=1133112520[/url][/EMAIL]On the right is the #5 cylinder glowplug #4 on the left. See how the wire ataches to the one on the right, it is right against the wire going to the #4 glowplug. On the #4 plug there is an insulator between the two wires. Is the #5 hooked up wrong?

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nappy.

The #5 glow plug (GP) is not wired correctly. I'm sure by looking at the picture, that #5 GP is not working.

Move the resistor wire on #5 GP to the same place it is on #4 GP.

Be careful, the resistor wires get red hot. Let them cool sufficiently before you touch them.

P E H

Thats what I suspected but wanted some confirmation before I started tinkering with it. thank you

ahhhh...... I dont know the GP physics/layout at all but if the wire from #4 is actually sending voltage from the location it is attached then I would think #5 could recieve the voltage being attached the same way. I would think you can't have voltage come out of #4 but say #5 cant recieve voltage when they are attached the same way.

__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way".
by JerryBro

The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue

My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair

62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels

Coach,

Here's why the #5 GP won't work the way it is wired. Series GP are not grounded to the block like parallel GP. There are 2 terminals on the GP stem and both must be connected. Current goes in one terminal and out the other to the next GP in the series.

There is a difference between current flow and applied voltage. Its the same as if you connected a hot wire to a light bulb. Even though a voltage is applied, it won't illuminate until another wire is connected to the other terminal to complete the circuit so current can flow.

So there must be a wire connected to EACH of the 2 terminals on a series type GP for it to work.

P E H

Jim H,

Close but no cigar.

Actually the "out" of a parallel GP is the threaded body of the GP which makes its connection by being screwed into the head which is connected to the negative terminal of the battery by the battery ground wire.

Also, positive voltage is applied to the input of #5 GP. The out terminal of #1 GP is grounded by a wire to the head.

P E H

how do you know if you have the pencil stlye GP's.. i didnt see the braided ground wire at all connected to #1

TheDon,

Series (LOOP) GP are wired in series. I.E. the first GP (#5) is connected to + voltage and a series of wires runs from one GP to the next. The last GP in the series (#1) is grounded to the head. This is assumed to be conventional current flow + to -. GP numbers are same as cylinder numbers.

Parallal (PENCIL) GP have a separate wire going to each GP and the ground of each GP is thru the shell of the GP.

P E H

2 terminals.. one stim.... ok.... got it that makes since.

ok then from reading this info it would look as if NONE of his glow plugs are working since they appear to be series Wired. PE H.. said + comes in at #5 and then jumps from plug to plug and is then grounded at #1. Wellll.... I don't see anything bringing in + to #5. Maybe you can't see it since pic is so dark

__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way".
by JerryBro

The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue

My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair

62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels

coach,
If you look at the picture you can see the wire bringing the + to the #5 plug coming from the right of the photo.

ok i was asking because i dont have those metal connectors that look like a series of hills.. heres what i have.. sorry for hijacking the thread..

you can have it back now

thats plug #1

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TheDon,

Your picture shows a parallel type GP.

P E H

Thanx PE H I see it now.

Much appreciate!! Learn something new everyday. So the + input is bypassing #5 and not going thru the plug as it is wired presently. Got tya.

__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way".
by JerryBro

The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue

My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair

62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels

P.E.Haiges
Thanks for the knowledge.

0 = GP


Series GP circuit

+V-------0
............. l-------0
.........................l-------0
....................................l-------0
...............................................l-------0
..........................................................l--------GND

NOTE: . added to get correct spacing. Ignore them.

Parallel Circuit

+V-------0<<<<<
+V-------0<<<<<
+V-------0<<<<<
+V-------0<<<<<
+V-------0<<<<<
< is threads on head and shell of GP.

P E H