15-05-2021, 05:25 AM
I have an Austin 10. Same problem after a rebuild.
Would start but ran rough with little rpm increase hand blipping the throttle.
Discovered 3 and 4 head area was warm, 1 and 2 cool.
Took 1 plug lead off, no charge to rpm. Same for plug lead 2.
Good spark to head bolt from both 1 and 2 HT leads..... mmmm.
Since the plugs were recent I discounted them as a problem and fitted a second Dizzy I had.
No change. Then thought about it a bit more and decided to pull the plugs.
Checking resistance of centre electrode to the plug outer body on my digital multimeter, 1 and 2 showed about 60 k ohms, 3 and 4 showed infinity. Put in two new plugs and all is good.
They were new NGK AB-6.......
Check you plugs Peter.
Cheers
Gary
Antipodes
Would start but ran rough with little rpm increase hand blipping the throttle.
Discovered 3 and 4 head area was warm, 1 and 2 cool.
Took 1 plug lead off, no charge to rpm. Same for plug lead 2.
Good spark to head bolt from both 1 and 2 HT leads..... mmmm.
Since the plugs were recent I discounted them as a problem and fitted a second Dizzy I had.
No change. Then thought about it a bit more and decided to pull the plugs.
Checking resistance of centre electrode to the plug outer body on my digital multimeter, 1 and 2 showed about 60 k ohms, 3 and 4 showed infinity. Put in two new plugs and all is good.
They were new NGK AB-6.......
Check you plugs Peter.
Cheers
Gary
Antipodes