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MG TD TF 1500 - Rehabilitation Exercise

Hi All, This was just an exercise to see if it could be done.
I purchased a TD type thermostat housing on ebay. It was unusable as purchased ($5.00). The upper part that goes into the radiator hose was so badly corroded, that big chunks were missing. Both gasket surfaces so badly corroded that no gasket would be able to stop leaks. No thermostat. That's where I started.

First step was to get rid of the cross piece that supported the original thermostat. Then grip the lower flange in the lathe chuck and open up the housing body to 1.780 - 1.800" for a new thermostat. Then remove what was left of the collar that went into the radiator hose.

Then remachine the gasket surfaces for the bypass hose fitting and the elbow at the bottom.

Obtain a 3/8" thick piece of steel heavy wall tubing to replace the collar. This was roughed out oversize so that for welding it did not have to be precisely jigged.
This was then brazed to the the casting. When cooled it was chucked into the lathe and the outside and inside turned to match the casting. Then the length was turned to match the original overall length (approx.).

The new thermostat was held to the rim inside the housing by two 4-40 screws. Also two 1/8" holes were added to allow air to escape when filling the system.
(continued in next post)
Bob Jeffers

See Ttalk for pictures of the finished housing.
Bob
Bob Jeffers

See http://www.ttalk.info/JeffersHousing.html Bud
Bud Krueger (TD10855)

We've just got to find some sort of award for Bob !!!!!! WELL DONE!!!!!!

SPW
STEVE WINCZE

This thread was discussed between 04/07/2011 and 06/07/2011

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