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Old 09-16-2017, 09:49 AM   #31
Hawkdriver
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Default Re: Cylinder 1,8,4 not firing

It was worth a shot. I recently had the block rebuilt and got it back in the scout. As I am trying get it tuned to about 5 degrees BTDC when I noticed 4 cylinders where not firing. It is 8,6,4,3. I checked the plugs and they where wet and black. The wires did not arc when I put them next to the block. I also tried other wires on spot 8,6,4,3 against the block and with a gap between the distributor and the wire and still got no spark. I changed the cap and rotor twice. Finally I changed the points and condenser. That gave me back cylinders 8,6. Adjusting the points on Cylinder 4,3 gave me back those cylinders. Know I am on to looking for vacuum leaks to get it tuned to 5 BTDC.
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Old 09-16-2017, 11:25 AM   #32
Scoutboy74
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Default Re: Cylinder 1,8,4 not firing

Looks like the advice given in post #17 of this thread was more than just a little applicable to your situation. Point gap setting is not cylinder specific. The rubbing block simply needs to be resting upon one of the 8 lobe edges of the point cam. Then you adjust the gap with a gap feeler gauge of correct thickness inserted between the contact surfaces. That gets you close enough for gummint werk. To get it really fine dialed from there, you must have a dwell meter connected to measure the dwell angle while the engine is running. For a V8 engine you want to see a steady number anywhere between 28 and 32 degrees. Once that's achieved, along with known good condenser, rotor, cap, wires and properly gapped spark plugs, you can then move on to timing adjustments and finally carb tuning. That is the preferred order to do these things in.

Do you have a timing light so that you can first see where your timing is at before making any adjustments?
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Old 09-16-2017, 01:21 PM   #33
FDChappie
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Default Re: Cylinder 1,8,4 not firing

Check your plug wires with an ohm meter. If they don't all read about the same replace them.
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Old 09-20-2017, 06:26 PM   #34
Hawkdriver
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Default Re: Cylinder 1,8,4 not firing

Thanks for the help fella's I am getting spark to all eight cylinders now.
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