Now Christmas is out of the way it was time to take a trip over to carry on with the strip down of the Model B engine.
The engine has been soaking for quite some time and unfortunately is still stuck, so we got to work looking for the source of the problem
Upon removing the main and big end caps things were starting to look quite promising, however as we got to the rear main….
We found that the babbit had broken up quite badly and as a result would have been very noisy in operation. The white metal has been done previously in a non Ford type manner but this doesn’t appear to be the cause of the failure. Either way the engine needs a complete re-metalling as there is also a cracked big end.
On the upside the counterbalanced crank appears to be in pretty good shape.
Back to the task in hand and we found the source of the seizure, number one piston is stuck in the bore. We gave it a few gentle taps but it remains stuck. So we’ll be soaking the bore for a while and we’ll get back to it in due course. The bores look good so it would appear that it’s most likely carbon and a lack of movement causing the issue.
As part of the inspection of the Model B engine it was found that the valves were seized due to the amount of time that the engine has been laid up.
With a bit of a two man effort and the correct Ford valve spring compressor and valve guide “knocker” tool the valves and guides were extracted. The guides and followers are in really good shape. Will most likely replace at least the exhaust valves.
Took a trip over to strip and inspect the Model B engine, on the whole it was very encouraging. Looking at the stamping on the block it looks as if it’s a 1939 build.
The engine looks in great shape and we think it was overhauled maybe back in the 1950’s and then just stored before changing hands a number of times. The white metal big ends and mains are in reall good shape as are the timing gears. The issue at hand is a number of stuck valves which means we can’t turn the engine fully at this point. So, more soaking in penetrating oil and get back to it in a week or so.
THE 1932-’34 FORD MODEL B ENGINE MAY LOOK LIKE ITS PREDECESSOR, BUT IT’S A MAJOR IMPROVEMENT
For 1932, Ford introduced an improved version of the Model A four-cylinder to accompany the new V-8 in its cars and trucks. This 200.5-cu.in., 50-hp engine was known, appropriately enough, as the Model B.
The Model B shared many elements with its Model A predecessor, and the two had a great deal of physical interchangeability–attested by the fact that today, many updated Model A’s incorporate some or all of a Model B engine for improved driveability. A prominent change between the Model A and Model B engines was the addition of significantly more bearing area: Larger diameter bearings for both the connecting rods and mains meant better durability and more potential for power.