D17 Allis chalmers series 2

[EasyE]

I have a D -17 allis chalmers that I rebuilt engine 2 years ago . It is now not firing on cylinder 1 . I’ve checked plug , wires , adjusted valves and still not fixed. Any ideas?

 

[Fixingfarmer]

Distributor cap?

 

[BarnyardEngineering]

How did you check the plug and wires? Don't just look at them, shrug your shoulders and say, "They don't look too bad" like all the youtube mechanics do. You can't tell if a plug or a wire is bad by looking at it.

Take the plug out and verify you have spark.

Next, do a compression test on the #1 cylinder.

 

[4wdtom]

Swap a pair of wires on the distributor and engine and see if the misfire moves with one of the wires.

 

[EasyE]

How did you check the plug and wires? Don't just look at them, shrug your shoulders and say, "They don't look too bad" like all the youtube mechanics do. You can't tell if a plug or a wire is bad by looking at it.

Take the plug out and verify you have spark.

Next, do a compression test on the #1 cylinder.

Yes sir
I swapped plugs and actually saw spark coming from the wire and felt it too lol.
Will do compression test today.
Thank you

 

[Jim.ME]

Yes sir
I swapped plugs and actually saw spark coming from the wire and felt it too lol.
Will do compression test today.
Thank you

Depending where you were touching the wire, the fact that you felt it can indicate a bad wire, leaking spark to ground.

 

[EasyE]

I have 130 pounds on all 4 cylinders
Double checked plug and wires
Still missing on #4

 

[EasyE]

When it’s running every now and then it pops similar to a misfire

 

[JOCCO]

Look at valve springs or intake leak.

 

[Bruce from Can.]

Swap the coil.

 

[Steve in VA]

I have 130 pounds on all 4 cylinders
Double checked plug and wires
Still missing on #4

Original post said cylinder #1. I'm confused. Now #4?

 

[casecollectorsc]

Swap the coil.

Swap plugs with another cylinder and see if the miss follows...could be a bad plug.

 

[EasyE]

Will do thank you