Though a fine vessel, of solid construction and noble seaworthiness, she requires a fair amount of attention to her systems and power plant. The unbreakable, the unwavering Ford Lehman 120 inline 6 cylinder has suffered a transmission failure. A failed transmission oil heat exchanger caused water to flood the gear housing thus ceasing the internal shaft bearing. Yesterday was spent removing the tranny components (photos to come). Cpt. Sequoia and Cpt. Ray, with the help of Fred Piasecki, have found a marine mechanic in Massachusetts that will, hopefully, rebuild it to original working condition, and in relatively short order. We are hopeful she will join the fleet in carrying out her mission. Stay tuned.

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Comment by Greg Parks on August 17, 2014 at 7:50am

Sounds like the engine coolant is diverted to the hot water heater.  It is adjustable by a valve.  Just open it up a little and make most of the engine coolant go through the seawater heat exchanger.  Nice to have some hot water if our running engine anyway. If you divert all the coolant to the hot water heater, it will boil at 212 degrees and pop off into the bilge and your engine can not cool itself.  Just open the hot water valve a little bit.

Comment by Margaret A Baker on August 16, 2014 at 9:48am

Hi all,

I noted that there was a overheating problem somewhere as, after running the engine, the cold water in the sink was over 100 degrees F. Not knowing what components lie near those lines, couldn't diagnose.

Also,maybe this thread will give some pointers to prevent future problems after tranny is repaired.


Comment by Captain Ray Thackeray, IRG on August 16, 2014 at 6:21am
Both heat exchangers definitely need replacement. I had a Lehman/Velvet Drive combination on my last boat and blew the main engine raw water cooling heat exchanger, was very glad I had a spare in the middle of the Pacific 2,000 miles from land in any direction...
Comment by Greg Parks on August 11, 2014 at 10:20am

Was the tranny a Borg Warner Velvet drive?  Just wondering.  What about the heat exchanger?  I wonder if the Main heat exchanger (the engine coolant / sea water) exchanger needs inspection?

Comment by Captain Ray Thackeray, IRG on August 9, 2014 at 9:27am
Tandemeer's hydraulic transmission blew up on the way to Connecticut to complete restoration, João was a major help in getting it out of thee boat and on the way to be rebuilt. Fred Piasecki, VP Engineering of Piasecki Aircraft Company was remarkably gracious and helpful in diagnosing our drive as in reasonable shape for rebuilding, thank you João and Fred!


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