Tractorable
Veteran Member
- Joined
- Feb 15, 2017
- Messages
- 1,328
- Location
- Marshall, Va
- Tractor
- Tractorless, 2022 F350 Tremor, 24ft Diamond C HDT Equipment Trailer, 1980 Toyota Land Cruiser FJ40
1952 Ford 8N, side mount distributor, 12V conversion.
So I consider myself to be a pretty good shade tree mechanic but I'm having trouble getting my 8N to run. It ran great for two years but now I'm having issues.
I'm getting fuel to the carb and a spark at all four cylinders but it stills runs like its firing on two cylinders. I've done everything I know how to do except to tear into the motor and start replacing manifold and head gaskets.
This is what I've done so far:
- New battery and battery cables
- New coil
- Drained fuel tank and replaced fuel with fresh gas
- Confirmed good fuel flow by removing drain at bottom of carb
- Rebuilt carb
- removed, cleaned, adjusted distributor. New points, condensor, rotor, cap
- checked continuity in distributor in six different places, all good
- new plug wires
- confirmed spark at all four cylinders
- opened spark plug gap to nearly 1/4" and still got spark
- removed and inspected governor, looked fine
- engine oil is clean and full, no sign of coolant/oil mixing
- compression is strong: 120psi, 120, 118, 115 - 90psi minimum
- verified TDC and timing mark on flywheel, points just opening at 4 deg BTDC on #1 cylinder
I'm about to push the tractor off a cliff and go buy a new Kubota.
Should I tear into the motor and replace manifold and head gaskets?
Any other ideas?
So I consider myself to be a pretty good shade tree mechanic but I'm having trouble getting my 8N to run. It ran great for two years but now I'm having issues.
I'm getting fuel to the carb and a spark at all four cylinders but it stills runs like its firing on two cylinders. I've done everything I know how to do except to tear into the motor and start replacing manifold and head gaskets.
This is what I've done so far:
- New battery and battery cables
- New coil
- Drained fuel tank and replaced fuel with fresh gas
- Confirmed good fuel flow by removing drain at bottom of carb
- Rebuilt carb
- removed, cleaned, adjusted distributor. New points, condensor, rotor, cap
- checked continuity in distributor in six different places, all good
- new plug wires
- confirmed spark at all four cylinders
- opened spark plug gap to nearly 1/4" and still got spark
- removed and inspected governor, looked fine
- engine oil is clean and full, no sign of coolant/oil mixing
- compression is strong: 120psi, 120, 118, 115 - 90psi minimum
- verified TDC and timing mark on flywheel, points just opening at 4 deg BTDC on #1 cylinder
I'm about to push the tractor off a cliff and go buy a new Kubota.
Should I tear into the motor and replace manifold and head gaskets?
Any other ideas?
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