So the TD was built some 4 years ago. The engine builders put on this water rail which draws coolant from the cylinder head and back into the cooling system. This is because the TD’s have coolant flow dead spots and this jigger is supposed to help. Well. It’s been leaking since it was fitted. And it’s been back seven times and it still leaks. The water is fed into the head via a brass nut and olive setup. The coolant will only leak when the motor is cold. So my theory is when the engine gets hot, and it does, very hot sometimes, the brass fittings expand and then when it cools, the nut that holds the olive in tight loosens. Which it does, I have re tightened then on a few occasions.
Attachment 81447
So. Being fed up with this. I have hopefully found a resolve.
Using silicone coolant hose, from work of course, on barb fittings, and a special heat shrink hose clamp, compliments of work again, on the engine side of the setup. I cannot use any worm drive or other clamp as there is simply zero room once it’s all in.
I’ve only done one port so far as I want to see if it will hold up or not as the job is quite fidly trying to work around the injector spill rail and injector lines.
Attachment 81448
Attachment 81449
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