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My Commando 750 oil pressure relief valve leaks. It looks to be getting past the cap threads. I annealed some new thicker copper washers thinking the cap might be topping out on the valves thread and not compressing the thinner standard washer. Is this a known problem before I try thread tape or thread sealant?
Same problem
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Thanks Gordon, I've been out…
Thanks Gordon, I've been out with a magnet and mine is an original steel item. I'll try a bit thread tape first, then probably buying a replacement.
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Had the same problem with mine, kept thinking it was the rocker feed banjo bolt though.
Turned out to be the relief valve dome cap threads topping out.
It was a stainless steel one I had fitted, re-fitted the original and all was good.