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Engines / JP3 Change Over Valves.
« on: May 27, 2023, 02:06:08 PM »
I am running a JP3 in my narrowboat and was recently pushing against a strong flow coming up the Thames. As I was working the engine I used the low compression option for the first time. After the initial experience of the hissing and barking while going from high to low, I found that the engine ran very cleanly (after the engine was at running temp) in low. I am now on a canal which doesn’t require the effort so have been leaving them set to high comp. My problem is that I now have a slight leak in number two (although its seems to have had no effect on the performance). It seems to be hissing through the nut holding the wheel in place. I assume there is a bit of carbon build up - does anyone have a clever trick for getting a better seal?
Note: I stopped reading the manual for removal when it was suggesting that I hammer chunks of wood into the block!
Cheers
Note: I stopped reading the manual for removal when it was suggesting that I hammer chunks of wood into the block!
Cheers