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MG TD TF 1500 - Route of TD Temp Gauge Tube

My 1951 TD has a dual oil / temp gauge fitted.

The bulb is inserted into a tapping in the centre of the radiator header tank and the capillary tube was tie wrapped to the radiator steady rod on the carb side and entered the car through a hole hacked into the bulkhead just under the fuel pump. (The two heater hoses also used this hole which didn't have any rubber grommet !)

I have now carefully welded up the he hole and cut a new one one the other side, under the dynamo regulator, as shown in the 'Original TD Web Site'. Can someone please explain the route of the capillary from the radiator to this new hole and also what type of clips are used to secure it. (I know tie wraps are wonderful but don't know where to buy the 1951 variety !)


Happy New Year


Jan T
Jan Targosz

Jan,
Merry Christmas!!
my 53 TD has the capillary tube coming off of the rear of the head from the steel plate with a 90 degree elbow and fittings, the tube then goes through the fire wall by the battery under or near the oil pressure line.
I do not know if that is original or not, there is a large amount of tubing coiled under the dash.

Rod
R. W. Zander

Jan,
Check your email, I'll send you a couple of pictures. I hope you don't mind rust, these are from the "before" file....

Happy New Year!

Evan
Evan Ford - TD 27621

Jan
Merry Christmas and Happy New Year. I think you have Horst Schach "The Complete MG TD rest. Manual" on page 131 he shows where the cap. tube line enters the scuddle. In this picture it is on the left side of the car, under the left side horn. On page 135 he explains where and how to route the cable. On most cars that I have seen it is attached to the radiator steady. The remainder is coiled under the dash. I think,off the top of my head, that it was origionally attached with metal ties like the brake lines use on the rear end, but smaller. Most of these are long gone and most use electric ties. That is what I used , but obtained black ones rather than the normal white or clear plastic. Hope this helps. John
John Hambleton

Jan, I think my tube is located as orginal. As one reader said, the tube comes thru the firewall next to the oil pressure line by the battery. It is then routed over to the battery stay rod and secured alont its length with three aluminum wire type tie wraps. I wound the excess tubing around a piece of tubing to form a uniform coil just below the point where the sensor bulb enters the rad fitting. This is to absorb vibrations to keep the tube from work hardening and flex cracking. I will send a photo via email if you like.
I think the coil and the tube routing may be shown in the Workshop Manual or the Owners Manual if I remember correctly.
Jim Merz

CORRECTION! I meant to write that the tube is routed from the battery area over to the radiator stay rod and secured along its length............
I wound the excess tubing around some pipe or tubing to form a coil........
Sorry for the errors, just in too big a hurry to experess myself properly.
Jim Merz

Thanks everyone - problem solved

Nice to see a thread growing quickly

Been a dearth of correspondence recently. Maybe many owners are in hibernation !

A Good New Year to Everyone

Jan T
Jan Targosz

This thread was discussed between 26/12/2002 and 27/12/2002

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