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You can. I don’t because I try to limit metal fasteners going into and out of aluminum if possible.

I have learned to remove the air filter, put a lawn chair cushion over it and the front of the engine and then lay on it. With a 1/4” drive ratchet with a 1/4” short socket on it. I can then work a hand under the back of the intake to the hose clamp and loosen it. The hose is also a 1/4” ID...

When I was rebuilding my Gasser M35 16 years ago I had just the cab bottom, a seat and a few other things assembled. I took it for a drive. Watching the rear axles move in every different direction caused me to worry as you did to start this thread. Do your inspection as suggested above. You...

I will try to answer in order asked. No, the engine does not idle up with the compressor engaged. However, it also doesn’t slow down. The injection pump has a low and high speed governor. The low speed governor pretty much maintains the idle speed regardless of the load on it. To a point. I...

Lets tackle the alternators separately. ALT 1 on the drivers side has an isolated ground wire but doesn’t need it since it is for the 12 volt truck system side of the fun. If you can touch a test light to it and it works while the test light is touching the case. Then I suggest checking the...

That is a 6.5 IP. Maybe your engine is a 6.5? Here is a video about what the numbers on the pump mean: It also shows the pink wire and green wire stock attachments. Depending on where you are in New Mexico or where the truck was. Advanced timing and higher idle might have been needed just...

Crank for 20-30 seconds, let it sit for 2-3 minutes, repeat. Here is a video about running an IP dry and priming it again:

The pink wire in a stock configuration is hot with 12 volts when the key is on. The green wire when stock goes to the sensor at the outside rear of the passenger head. That sensor has another wire that is hot anytime the key is on. The sensor is supposed to put power to the green wires...

So, you have heat, fuel and air. It should run. How fast is it turning over? The batteries have to be fully charged and the starter has to be spinning the engine fast. Otherwise it won’t get the heat from the compression stroke to run. My other thought is air in the fuel. Replacing the lift...

Oil is the life blood of an engine. Looping the cooler lines is ok for test running an engine on a stand. But, for a vehicle under load I think it would be a bad idea. I have a stand alone air to oil cooler on one of my trucks with an oil temperature gauge. Driving in 20° F air still has the...

Yes, that is what I see. Seems as if you have it figured out.

The aluminum line across the radiator is a built in cooling feature of the set up. The stock hose and line oil cooler lines have had a bad history. There was a recall on the hoses next to the block. (If you want to waste some time, call a Chevy dealer with your VIN. You might have a truck that...

I drove mine this morning. I did notice the coolant red light came on only while the starter was engaged. I normally don’t watch the lights once the glow light goes out since there is no oil psi to watch. I go to the ALT lights on start up normally. But, I was thinking of this thread and caught...

I just went and tried one of mine. Turning the key on had the following lights come on. ALT 1 ALT 2 OIL Low Coolant Fasten Seat Belts Glow Plug The low coolant went out after 5 seconds of not starting while waiting for the glow plugs to finish. The oil went out within a second or so of...

No check engine light. Mentally figure you have no lights about the engine health. Pay attention to the ALT 1 and ALT 2 lights though. They are part of the charging system and need to be noticed. The stock thermostat is a 195° part that starts to open at 192° and is fully open at 203°...

That looks like a replacement data plate. Which means you get to play detective. Riveted rear motor mount brackets to the frame normally mean the truck came with a multi fuel. 1960 or so and newer was all multifuel production. Solid state flasher and blinkers came along in 1967 or so. Those...

Here is a video that shows the plugs you need to have the solid state blinker system:

I don’t know what the Transgo can and can’t do. CUCV wise. The vacuum pump at the rear middle of the engine has a hose that goes to the throttle vacuum valve on the passenger side of the injection pump. Then a hose and line go to the vacuum modulator on the side of the transmission. A little...

Thanks for the update. Great price too!

That tail gate doesn’t even have THE dent in the middle of it. Someone loved that bed and tailgate. It looks like the latching tabs for the under bed storage are broken off. Could just be the picture angle too. Not only is the tail gate good looking. The hinges and chains are all there. Often...