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Old 07-15-2020, 10:04 PM   #1
GB SISSON
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Join Date: Jan 2014
Location: Orcas Island Washington
Posts: 4,845
Default Stumbling, hunting and missing

No, not another elk camp story.....My homebuilt woodie has a recently overhauled 221 replacement block set up as a 59ab. It developed a miss at #3 cyl and I finally traced it to a very black, corroded terminal in the crab distributor cap. New cap, now running on all eight! During the shotgun approach to tracing it down I swapped out both the distributor and carb. Now I'm finding new symptoms and poor running. The current distributor came off the 59 ab I pulled when I installed a diesel engine in the tonner. Fresh Bubba with the echlin condensor etc. Running a blue bosch coil 12v neg ground. Ran well on the otherwise worn engine. Carb is a 91-99 that I bought a few years back from an enthusiast here on another island. It was in the shipping box from Jere Jobe, well known carb guru and never installed. Here is my question of the evening. This carb was built for the owner's 255 cu in 59ab in 47 woodie. If I recall it also had a mild cam. Is this perhaps too much carb for my little, stock 221? On the flat at 30 it surges and hunts and lurches. On the long grades it stumbles and sputters some. Fuel tank is new poly and two filters. Also have an inline electric fuel pump that has been in the car since built with no problems. The pump has a switch and used for after sitting startups. Hitting the switch while climbing hills has no effect. On my last trip, yesterday, I drove it hard coming up my hill and killed the ignition and coasted to the shop. This morning I pulled the plugs and they were uniformly a sort of chocolate brown. Not white, not black, not the perfect tan, but clean looking and ok I think. Just not sure what to check tomorrow. The Jere Job carb is beautiful and totally rebuilt. Could it have jets too large? If so are they the jets reached horizontally through the bottom of the float bowl or the vertical ones by the acc pump nozzles, which btw, squirt with authority. To those of you guys that know this stuff and haven't fallen asleep reading this, thanks, and I will check back in the morning. ZZZZZZZZ
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Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson)
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