Bad Noice ford truck 1940 1 1/2 ton 95hp

[totalchefen]

noise
went a long distance with the truck this weekend and then got a noise at the uphill, first in fourth gear, got the drop on the gas continue until the sound was dropping off the gas and then get change down to 3rd gear. voice sounded like two plates against one another
suggestions for troubleshooting?

[Reds34]

How are your levels? Ie: Oil, Transmission, Rear Axle. Could you tell where the noise was coming from? Do you have an oil pressure gauge? How were your temps?

Red

[Walt Dupont--Me.]

Are you sure it's not spark knock, timing to far advance? Is the engine new or have a lot of miles? Walt

[totalchefen]

Old engine
normal temp
oil check.
oil pressure normal
the noice will apears then the engine has to work hard running uphill
very difficult to located the noice.in front or under cabin

[41panelmark]

Originally Posted by totalchefen

noise
went a long distance with the truck this weekend and then got a noise at the uphill, first in fourth gear, got the drop on the gas continue until the sound was dropping off the gas and then get change down to 3rd gear. voice sounded like two plates against one another
suggestions for troubleshooting?

Can you post a video with the noise?

[alanwoodieman]

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could the noise be the parking brake band rubbing the drum? small spring is suppossed to hold it off but could need adjusting-reason you are hearing it at high speed could be when it is dragging enough to make the noise ,just a thought

[ford3]

noises or pinging on up hill pulls usually means a lean carb mixture, or timing advanced to much, a ping will sound like a sharp rattle, it happens on throttle opening on hills, more things will cause that noise, but those two are the main ones

[41ford1]

Your description sounds like too much initial timing or a seized vacuum brake. My vote is a seized vacuum brake. The vacuum brake slows the timing under load. The vac brake assembly is on the other side of the distributor in the picture. For starters, remove the brake assembly and clean it. The large hex will remove it. Relubricate it with a light grease like Vaseline. If there is groove in the leather pad. Remove it from the piston. Turn it 90 degrees and reinstall it.