Kevin Kruger Asked What size thread...
> Subject: [CR]Shortening Silca Pump
Kevin, The thread size is 22mm. X 1.
This is the same size as the threads on a Campagnolo crank extractor.
Years ago I ground one of my extractors as a tap to use for threading silca
pumps and it worked great.
As an added bonus I found I could use it to fix, (chase), damaged threads in
NR-SR crank arms. Some had bad threads from cross threading, or partly
stripped from someone not threading their extractor in far enough then
"pulling" some of the threads out.I saved quite a few with this tool!!!
You might find a 22X1 at an industrial supply store.
I hope this helps!
Peter Weigle
Lyme Ct.
>> Has anyone had any success in shortening the length of a Silca pump
>> barrel???
>> The top is threaded, thus I assume threads could be recut if
>> shortened,,,,but what size tap???
>> Anyone know offhand???
>> Thanks!
>> Kevin Kruger - Grantville, PA
>>
>>
>>
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