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andrew
| | Posted on Sunday, September 28, 2003 - 09:55 pm: | 
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Dick Day sent in the following:
Quote:This is a very rare YT-1. Never seen one like it. Note the water inlet is above the pump not on the aft face. Cannot see the priming cup
boss between the push rods. No oil level petcock in the lower aft face of the crankcase. Interesting exhaust extension. Suspect the engine is between 1924 and 1926 as it has vertical spark plug and no oil level petcock... Regards Dick
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Richard Day
| | Posted on Monday, September 29, 2003 - 08:54 am: |
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In addition to thanking Andrew for posting these photos for me I would like to add a couple of comments. This engine was located by a long time AU, Palmer Collector, Allan Roney. You will see his engines listed in the annual listing. Allan does beautiful restorations and he has a number of interesting and different Palmer engines. He provided me some of the best catalog material on Palmer Bros. regarding the early NL and NR series.
Just when I thought I had seen every change in the YT series there ever was this engine turns up with the water inlet flange on the Starboard lower face of the water jacket. To make matters worse who should turn up a similar set up but Ernie Darrow on a YT he got from Ken Gallup. In thinking about this I have to conclude that these cylinders were made in the era of the YT-2 production. Should have recodgnized this difference a long time ago as it would never work for the forward cylinder to have the water inlet on the aft face of the cylinder as there is no clearance for it. The water inlet manifold on the YT-2 is in this location. For some reason when YT-2 production ceased Palmer chose to relocate the water inlet to the aft lower face of the water jacket and left the two bolt flange boss on the starboard side for the cylinder water drain. We do know that some cylinders did not have this boss and were simply tapped for an 1/8th NPT drain cock. It may have been the change was made to make the castins in the foundry easier. Guess we will never know. One valuable addition is this engine has its serial number 2432127 (1927) and this engine shows the crankcase clearly tapped for the oil level petcock. This fact contributes to the idea that the addition of the oil level petcock took place in 1926. |
Ernie
| | Posted on Tuesday, September 30, 2003 - 07:47 am: |
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Here is the second YT1 with side water inlet.
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Ernie
| | Posted on Tuesday, September 30, 2003 - 07:52 am: |
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