Recent content by David435

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You need a PH Neutral wash product.

The rev counter works from a sender unit at the flywheel on this engine. I agree wholeheartedly to eliminate the easier and cheaper things first before progressing to employing engineers and dismantling engine parts.

This is now becoming very confusing. As I stated in the first post, Volspec did the pre-purchase engine survey and were happy with the port engine at 2800 rpm and starboard at 2900 rpm. The difference between the two could have been the failure of the starboard sender unit within two days of...

Hi All kashurst: The boat is a 1990 Princess 415. When you mention the valves when using a rod, are you referring to the stop cocks and all filter fuel inlet and outlets? Mr Googler: The throttle cables have all been changed and checked for maximum travel to the injection pump stop. Machaseo: I...

Thanks for your interest, I'll try and answer all the queries in one post: AllanG - Can you check the settings between port and starboard injector pumps without removal from the engine? kashurst: - Both engines accelerate at the same rate. Primary filters are Racor S3201T. Not sure if I could...

Hi All I am still struggling with the problem of loss of revs on the port engine. We have now changed the primary and engine filters and on a sea trial on Tuesday still only managed to achieve 2,500 rpm with the throttle wide open on the port engine. We checked the exhaust at this speed and...

Hi Portofino The stern gear was only fully cleaned and polished so didn't warrant a sea trial. I always use diesel bug mitigation whenever I refuel throughout the year. You are right, I meant the clutch was disengaged but the equal full rpm confused me as I would have thought the port engine...

Hi All I purchased a Princess motor cruiser in September 2019 and since then have only run the TAMD63L engines for a total of 30 hours . At the time of purchase we engaged Volspec to undertake an engine survey and the maximum rpm load while moored was port 3150 rpm and starboard 3350 rpm while...

Due to Covid19 it has taken a long time to complete this thread. Swapped the sensors over as suggested and the rev counter worked OK which confirmed the sensor was U/S. Purchased and fitted a secondhand sensor and both rev counters now working as they should.

I found the sensor, disconnected it and sprayed with electrical cleaner but the rev counter is still not responding so assume the sensor is not working properly but have no idea how to check this. The replacement part no is 862251 and the best price I can find is £200. You mentioned in a...

Hayling Island.

The engines are TAMD63L, 318hp

Thanks for your information. I will double check the wiring on the other alternator as that's working OK to see the difference in the connections. I'm back down to the boat tomorrow so hopefully it will be a quick fix. Could you please advise where the Y connector on the 16 pin dash loom might...

The port rev counter in the saloon and on the flybridge suddenly stopped working while underway on my Princess 415. Back on my berth I managed to connect the alternator signal cable from the starboard rev counter to the port rev counter and the port rev counter worked OK which pointed to a...