beebopbogo
Member
Offline
As some of you may know, I'm in the process of replacing the cylinder head on my '79 'B. This is the first time I've dug this deep on any car and I'm learning a ton about engines. Now that the new head is in, I finally got to test it out. I got it running with a bit of starter fluid in the air intake, but it's only running on 2 or 3 cylinders.
Compression is great: 110/110/110/110. Best I ever had.
Spark leaves something to be desired:
Plug #1 has a yellowish spark
#2 has a stronger white spark
#3 has a really strong blue spark
#4 has a very weak yellowish/red spark
So I'm thinking the problem could be due to the spark in the cylinders, but not sure. Distributer? Leads? Plugs?
I gapped the NRK plugs to 35mm, much wider than they were out of the box. That's what the Haynes manual said, though, so I'm trusting it.
Is there a solid way of knowing how the leads are performing? What about the distributer?
Also, I'm open to suggestions on what else may be causing the cylinders to not fire...
Thanks for all your help. This forum is awesome.
Compression is great: 110/110/110/110. Best I ever had.
Spark leaves something to be desired:
Plug #1 has a yellowish spark
#2 has a stronger white spark
#3 has a really strong blue spark
#4 has a very weak yellowish/red spark
So I'm thinking the problem could be due to the spark in the cylinders, but not sure. Distributer? Leads? Plugs?
I gapped the NRK plugs to 35mm, much wider than they were out of the box. That's what the Haynes manual said, though, so I'm trusting it.
Is there a solid way of knowing how the leads are performing? What about the distributer?
Also, I'm open to suggestions on what else may be causing the cylinders to not fire...
Thanks for all your help. This forum is awesome.