Anybody know a source for these for a 1946 berkshire?
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Dr. Tinker, has them listed at $2 each.
Dr.Tinker does list 726-65 but as sold out .
In my greenberg manual it list cross head #726-66 with crosshead screw #726-65
Also listed as an alternate 238E -11 cross head with a 238E-23 long shank cross head screw which i believe was for the early "46" berks.
But i think the long shank cross head screws needs to be mated with their corresponding cross heads being one screws in threaded cross head and the other twists in the cross head which must have a different threading.
Worst case not being able to find your part you may have to change the cross head to a 238E -11 cross head with a 238E-23 long shank cross head screw.
Train Tender list both 238E -11 and 238E-23 but would call him in the evening and discuss it he is very knowledgeable.
There is an error in the Lionel service manual with respect to these screws. First, the 238E-11 crosshead is threaded for a 3-48 screw. The 726-66 cross head has a smooth bore and is intended for a drive screw. The 238E-23 screw and 726-70 screw part numbers are reversed. The 238E-23 is a short threaded screw with a hex head. The 726-70 is a threaded screw and has an extension to drive the smoke pump. Since there was no prewar locos with smoke, and 238E was a pre war loco, the 238E would not have a screw with an extension to operate a smoke pump. The 726-70 screw is shown correctly numbered in the Lionel Engineering Standards. One 238E-23 screw and one 726-70 screw would be used in the 238E-11 crossheads in the 1946 726. The service manual implies that one 726-49 short drive screw and one 726-65 extended drive screw would be used the 726-66 crosshead on the 1946 726. However, as far as I know, the 726-66 crosshead was never used on the 1946 726 and the 726-65 extended drive screw was never made.
The short 238E-23 screw is readily available. The 726-70 screw with the extension has been reproduced and is available, but some looking around may be required. Original 726-70 screws come up on eBay, but never properly identified. You would just need to keep looking at the 726 listings. In looking for this screw Jeff Kane, The Train Tender, would be the place to start.
From Olsens:
It shows the 726-65 as a drive screw. If you are unable to find the 726-65 drive screw, it appears you can use alternate parts that @David Johnston suggested.
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