Matt Lambrech

does anyone have a link to the glow grid wiring for an 89 Cummins. I put one in my 1952 Dodge power wagon with a 5 spd and all the late model suspension and drive gear. It is a slow starter when it gets below 30F at night. I never got around to hooking up the pre heater.

G1625S

Hi Matt, glad you made it to the site! The early trucks use a 'black box' on the firewall to control the grids along with a temp sensor in the intake. Someone with more info will chime in shortly.
greg

Matt Lambrech

Thanks! I have the black box but has a few wires comming out. Some are thin dia. so no real load capacity.

Matt Lambrech

That picture is my old 89. Still looks Great with lots of smoke!!

G1625S

I'm guessing four go to the relays and two go to the switch. I'll run out and snap some pics in the AM---hopefully all the colors will be visible.

G1625S

Thought you might recognize the old girl. Rolled 423k over the weekend. Still gets 21mpg and has been known to embarass the occasional import with $200 stainless steel muffler

Matt Lambrech

Thanks again

Matt Lambrech

How do I post a photo of the M37 by my name?

G1625S

Go to the 'user cp' at the top-left of the page and click on 'edit avatar' in the menu. You'll likely have to shrink the pic down--it only allows for a 20k or so file.

frostie

Sorry, I cant help on the wiring at this time, But Please!!!!! post a photo of your ride. It has to be 1 of a kind.

Tuckerdee

Oh, Matt, you're breakin' my heart! I used to have a '65 M37...which I sold so could afford my current '92 Dodge. I spent many evenings staring into the engine bay wondering how I could wedge a cummins in there! I finally figured it just wasn't possible...the #6 cylinder would come all the way back to the front of the seat! My dream was to put a 4bt in. Please post pics! I'll want my M37 back no doubt...I in fact wanted it back last week when we got 3 feet of snow...it was a snow eating machine with the 38" super swampers. (Need a drool icon.)

BearKiller

I honestly don't believe you will gain anything by hooking up the intake heaters.

My engine fires at the first lift of a piston without the heaters being hooked up, regardless of temperature.

Unlike actual glow-plugs, which are located in the combustion chambers, the grid heaters are, in my opinion, too far from the point of ignition to be of much benefit.

You can temporarily rig them up on a cold day and see if they help.

haloman

Man, we have an M37 at the house that is just kinda sitting there. That thing was so pimp when it was running!!!

Matt Lambrech

done that and they do, but I Have to keep turning on and off mannually