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You don't need that connection. It is an obsolete part. Just plug the hoses directly into the vacuum regulator.

If you have a vacuum gauge, just check the vacuum coming out of the vacuum pump. It should read around 24 to 28 inHg Start there and if the pump is working you can work your way over to the vacuum regulator. Just pull off the rubber hose and hook up your vacuum gauge. Quick and easy, and will...

Possibilities, low fluid, blocked filter, vacumn pump, rubber hose from the vacumn pump to the vacumn modulator, vacumn modulator, vacumn valve at the injection pump. The vacumn valve at the fuel injector pump may need adjusting.

Got it!! I drew it out on a piece of paper. All 90's based on the firing order.

Thank you for explaining the procedure. So you divide the damper into eight equal sections as you explained, and then follow the firing order by turning the damper from piston one to piston 8 as you remove the glow plugs and continue the procedure following the firing order. Hope I never have to...

Okay Keith, my question to you, which maybe most others might already know is, how do you fine top dead center? Do you pull the valve covers off and go by the rockers relative to the amount of play? Thanks in advance.

Thanks Keith, I think your explanation is the first time that I now fully understand the way the system works. I did the glow plug resistor bypass on my truck 20 years ago and never looked back.

You are right, I did know that, but I had a brain fart, sorry guys.

According to Keith J you have a foreign IP that does not work on any CUCV. Once you get the right Injection pump on there you should be able to start that baby up! The only thing on a CUCV that is 24 volt is the starter.

The glow plugs are always 12 volts at the glow plugs themselves. With or without the dog head conversion. The dog head conversion just by passes the resistor coils on the firewall witch drop the volts down from 24 volt to 12 volts. Good work, doing good.

These vehicles have gone up in value considerably. Whatever money you spend, will be a good investment. The doghead relay will not set you back much. Breath life back into that truck and you will be glad you did.

Man Keith, you are on top of it. Good work on figuring out all that is going on with the injection pump. You are truly a wealth of information. Good job and Thanks for your time and help on this site. Good man!

I always enjoy reading your posts. You are a very knowledgeable and explain things in depth. I learn something from you almost every post you make. guy

Have you been under the truck to check and make sure you have a starter, that is wired up and bolted up securely, and is not missing the starter bracket. Check the batteries with a volt meter to see if you have 24 volts. Check all your fuses. Check the volts at the starter, it should be 24...

The pink wire hooks into the spade connector on the top part of the injection pump, and the green wires hook on the spade connector more towards the firewall on the pump. I believe the connectors will only fit the correct size spade on the injection pump.

I was prepared for some possible push back on that one. You are right, I normally would have just told him. But I thought, as Mullaney said, It would be a chance for him to figure out a solution with minimal effort on his own. The wire has about an inch of play which limits the possibilities of...

With out those wires plugged in you'll never get it started. You should be able to figure out where they go fairly easy.

Is that a fuel filter the wires are coming off of? If it is, those wires will not hook up to anything on the vehicle. You have a aftermarket fuel filter not original to the CUCV.