HH56 wrote:
What would be interesting would be if someone with both solenoids at hand could compare R9 and R11 solenoid plungers to see if any parts would interchange. I doubt they would but if that were a possibility it would open up some repair or conversion options. If an R11 repro that comes in 6 and 12v versions could also be compared to see if the r9 plunger could be swapped it would be even better.
Here are differences between solenoid plunger length as well as the bare R9 plunger assy with the ball on the end (ball is almost hidden at the end of plunger in the photo). If the repro solenoid plunger also had a similar travel and a screw on end cap that could remove so the inner shaft with the different lengths could be swapped it would open up lots of possibilities.
Note: I believe BDeB posted the R11 photo some years ago but am not sure if the photo shows the plunger extended or not. If not then it would extend around 1/2 inch to bring the extended measurement to about 1 1/2" so overall length of the R11 extended would be roughly 3/4" shorter than the R9.
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