Saturday, 22 July 2017

To leak or not to leak

While putting the final touches to the DHC's engine bay already two months ago I also gave the water pump a quick look. And at the time there were clear traces of coolant from the infamous slot underneath the water pump. A tissue wedged in the slot would be soaked within 24 hours. But during a circa 300 kilometre tour over a month ago all was normal. When I set of in the morning there surely was a leak. With the tissue stuck in there again being completely soaked in coolant. But there was no significant drop in the coolant level in the header tank. So I decided to ignore the leak and enjoy the driving. And when I returned home some 5 hours later the slot in the engine block was completely dry. Even after the engine had cooled down there still were no traces of coolant in that area. So it looked like my initial thoughts on the problem were correct: due to the cars idleness the mating face of the water pump's seal had corroded slightly, thus causing the leak. And using the car more often should get rid of the corrosion and the leak.
But when I wanted to take the car for a spin last Friday evening, a quick inspection before I set of again showed a tiny trace of coolant from the slot. But more worryingly, the coolant level in the header tank had dropped considerably. But then I remembered that while changing the header tank recently, the hose between this tank and the radiator developed a leak (hose clip slightly loose). And since I hadn't topped up the coolant. So I did it now! After which it was time to enjoy a lovely evening of topless driving.

Of course I kept a keen eye on the temperature gauge. But I needn't have worried. The temperature remained rock steady in its usual position. And a close inspection of the complete coolant system carried out this afternoon showed no leaks and nothing wrong with the coolant level.

So hopefully there's no need to replace or recondition the water pump. But I have made a mental note to use the car on a more regular base in the time remaining for Club Triumph's 10 Countries Run in September. But before that event there are two essential items that will be replaced. They were dropped of at a friend's place for renovating, a few weeks ago because the ones currently fitted to the car have rather worn spindles. As a result of which they have become rather difficult to tune and synchronise. So time for a shiny new set ...

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