As some may know I recently purchased a Ford Model A Doodlebug. It's a tractor made from a Model A chassis, engine, and sheet metal, with a Commercial Ford Model AA tranny and rear end. She has some issues, both by design and the wear and tear of 90 years of use. To be clear, I bought it with my eyes wide open. The seller was very honest, and a pleasure to meet. The machine ran and was drivable.
My plan is to improve it user-wise, and with time, put my twist on it aesthetically. But, at no time do I want it where we can't drive for any length of time.
Some things that needed immediate attention were a lack of a muffler, a broken exhaust manifold, poor running engine, and a driveshaft that was fairly scary. But, as luck would have it, a week after I bought the doodlebug, I was given a side job to do a large barn clean out. To my incredible good fortune there was a good number of Model A parts included! Including a seized engine and a NOS complete exhaust system!
Here's the engine, after I removed the exhaust manifold, and the exhaust system.
As I said the engine ran pretty rough. After going over things, some wiring was replaced, did the timing, but it just seemed despite me going over the carb twice, it just wasn't metering fuel properly. I have a bud that had a good known rebuild on the shelf, so I traded a bit of cash and the old one for it.
Here's the engine with the replacement exhaust manifold, carb and muffler installed.
After some carb adjustment.........she almost purrs. Also did a compression check. Was happily surprised with a reading of 60, 60, 45 & 55 lbs. from front to back. All are in acceptable range. Three are on the high end. Put a cap of MMM in each cylinder overnight. Good to go.
The back of the frame had been framed with a hunk of oak. It was pretty rotted, so we welded in a piece of channel.
Part of the new design was stretching the DB a bit. This would not only make for roomier seating, but would improve the ride. We settled on moving back the rear end 11 inches.
While we were there we removed the driveshaft, linkage and input/output shafts. Time to redesign, rebuild and fabricate.
My plan is to improve it user-wise, and with time, put my twist on it aesthetically. But, at no time do I want it where we can't drive for any length of time.
Some things that needed immediate attention were a lack of a muffler, a broken exhaust manifold, poor running engine, and a driveshaft that was fairly scary. But, as luck would have it, a week after I bought the doodlebug, I was given a side job to do a large barn clean out. To my incredible good fortune there was a good number of Model A parts included! Including a seized engine and a NOS complete exhaust system!
Here's the engine, after I removed the exhaust manifold, and the exhaust system.


As I said the engine ran pretty rough. After going over things, some wiring was replaced, did the timing, but it just seemed despite me going over the carb twice, it just wasn't metering fuel properly. I have a bud that had a good known rebuild on the shelf, so I traded a bit of cash and the old one for it.
Here's the engine with the replacement exhaust manifold, carb and muffler installed.

After some carb adjustment.........she almost purrs. Also did a compression check. Was happily surprised with a reading of 60, 60, 45 & 55 lbs. from front to back. All are in acceptable range. Three are on the high end. Put a cap of MMM in each cylinder overnight. Good to go.
The back of the frame had been framed with a hunk of oak. It was pretty rotted, so we welded in a piece of channel.

Part of the new design was stretching the DB a bit. This would not only make for roomier seating, but would improve the ride. We settled on moving back the rear end 11 inches.

While we were there we removed the driveshaft, linkage and input/output shafts. Time to redesign, rebuild and fabricate.
