CUCV: What glow plugs to buy? (24volt origial military) - Steel Soldiers::Military Vehicles Supersite

MuddWeiser · 05-27-2006, 17:43

I tested 4 glow plugs before I decided I need a new set. 3 out of the 4 did NOT register any voltage with the test light. And I am having starting problems.

I need to know WHAT GLOW PLUGS TO BUY FOR STOCK MILITARY CUCV. I haven't modified any of the glow plug system electronics. I think I need the SELF REGULATING kind?

Are these just regular A.C. Delco 60G's ? I will have to trim the tabs to fit the harness correct?

gasser · 05-27-2006, 19:01

I have the same, original 24v setup. However, remember you got 12V at the GPs. 24V is only for the starter.

I went with plugs from SS Diesel Supply; self limiting. However, they have spade/tabs on them - they are not the nipple type. My ends were 'looking bad' anyway, so I didn't mind putting on spade ends.

http://www.ssdieselsupply.com/produc...low_Plugs.html

I think you will be pleased with these; I know I am and sure there are tons of other folks here at that can second that.

Hope this helps, take care.

-graham

Recovry4x4 · 05-27-2006, 19:35

Those that Walt sells are similar to the 60G plowplugs. For a quick backwoods way to see if your glowplugs are working unplug the harness from the plugs and make a jumper wire from the batt to the glowplugs. In a low light condition strike the hot wire against the GP terminal. If there is sugnificant current draw, a spark will be visible.

MuddWeiser · 05-27-2006, 19:38

BUT can I get glow plugs at my local autoparts store? Can I buy the AC Delco 60G? Basically I have 3 hrs until the autoparts store closes and I don't have any transportation until at least Tuesday (3day weekend) I NEED IT RUNNING TODAY and would like to know what plugs I ask for at the auto parts store (like NAPA etc...)

I have the same, original 24v setup. However, remember you got 12V at the GPs. 24V is only for the starter.

I checked with a voltmeter and get 24V at my engine glow plug harness?

Recovry4x4 · 05-27-2006, 19:44

Mudd, there's supposed to be a drop down resistor on the firewall right above the vacuum pump. Its actually 2 resistors about 8" long with a shield over them. Perhaps an unknown source has bypassed this.

gasser · 05-27-2006, 19:51

Mudd,
Yes, the glow plugs are the same as the civvy. If you can't get the 60gs, I believe the 9g are pretty close.

While you are at the auto parts store, get some ether starting fluid. That way you can get the truck started, and diagnose any other issues.

-graham

Recovry4x4 · 05-27-2006, 20:00

If you use starting fluid, PLEASE unplug the GP system. You don't want to lift a head off with a bang.

gasser · 05-27-2006, 20:01

Quote:

Originally Posted by MuddWeiser

I checked with a voltmeter and get 24V at my engine glow plug harness?

I believe that is OK; with the truck off, I get approx 19v where the power goes into my GP soleniod. However, with the GP system on, it goes way down (as the GPs are drawing the power). I believe this is where the resistor on the firewall comes into play - to make sure the system gets the 12v when it's 'on'. Am I off base Ken?

-graham

gasser · 05-27-2006, 20:03

Quote:

Originally Posted by Recovry4x4

If you use starting fluid, PLEASE unplug the GP system. You don't want to lift a head off with a bang.

Yes! As I have said before ... but it cannot be said enough - thanks ken.

mangus580 · 05-28-2006, 00:48

Quote:

Originally Posted by gasser

I believe that is OK; with the truck off, I get approx 19v where the power goes into my GP soleniod. However, with the GP system on, it goes way down (as the GPs are drawing the power). I believe this is where the resistor on the firewall comes into play - to make sure the system gets the 12v when it's 'on'. Am I off base Ken?

-graham

You are exactly right, the resistors will drop the voltage only when there is a heavy draw on them.

If you get 9g's, replace them ASAP with the self regulating style so you dont run into swelling issues.