Quote:
Originally Posted by Saga Lout
It's already been done on this head, I'll take off the manifold and take a picture of the plug, 5/8 UNF tap and a plug after rounding up the hole with a round file. It's the nearest size I could get, I used a new temp' sender and cut it up as I have dozens of them to use as a tester. The nozzle was from an old fuel pump, and soldered into the remains of the temp' sender before I screwed it into the head.
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I have a small water leak from the thermostat O ring in the block, so I've whipped off the inlet manifold today to get at it easier. As you can see in the picture there's a threaded plug in the hole, it's secured with Araldite on the threads. I've also made the nozzle on the other side a bit longer to make it easier to get the clip on the hose. I think it's two worthwhile mods to a known problem, it also rules out the gasket as a cause of coolant loss should it happen.