Re-threading a stipped thread in Dynamo Mount - Part 1

for those with Series MM sidevalve cars produced between September 1948 and February 1953

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gtt1951
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Re-threading a stipped thread in Dynamo Mount - Part 1

Postby gtt1951 » Mon Apr 29, 2019 7:30 pm

My Low-light is giving me problems at every turn.
The dynamo that it came with was a later C40 version with the wrong size pulley.
It was also not mounted in a way that lined up with teh adjuster bracket, so I had to take it off whilst I decided what to do.
I decided, in the end to refit the one it came with, pending getting something better - but more problems, the front mount thread was knackered.
SideValve Dynamo mount with stripped thread.jpg
SideValve Dynamo mount with stripped thread.jpg (714.14 KiB) Viewed 116 times
I forgot to take a picture of the drilling operation - sorry.
I had to pull the waterpump pulley and fan blades off to give me extra clearance for the Tap handle, this still wasn't enough
tap in use.jpg
tap in use.jpg (591.54 KiB) Viewed 116 times
as the smallest tap Handle I had, that could take this size of tap, was still too long and was snagging on the water pump (could only do about a quarter turn at a time and then refit the handle each time (very time consuming).
New thread cut
new thread cut.jpg
new thread cut.jpg (853.63 KiB) Viewed 116 times
M8 Fine V-coil kit, as bought
IMG_20190416_180519.jpg
IMG_20190416_180519.jpg (2.05 MiB) Viewed 116 times
V-coil about to be inserted with special tool
IMG_20190416_180739.jpg
IMG_20190416_180739.jpg (1.22 MiB) Viewed 116 times
Insertion time - see part 2

'51 Hi-light with Sidevalve 918 engine,
'55 4-dr with 803 engine,
'56 Traveller with 1098 engine.

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