Fish Nautique Repower

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Hey all, 
About to start a repower on my 79 fish nautique, taking out the original 351w PCM engine.  Sourced a donor Mercruiser/Cummins 2.8EI 200 engine(800hrs).  From my research the torque and horsepower figures line up perfectly around 2300-2400 rpm on both engines with a considerable fuel savings with the diesel.  I have sourced the correct flywheel housing and coupler.  

Just curious as to if anyone has done this repower or something similar.  I know I'll have to make a new harness (I have all the gauges from the donor engine)  but other than that the stringer width measurements all line up pretty spot on.  I plan on documenting the refit in pictures as well as I can but looking for anyone who has put a turbo inline four in any of these boats.  The company I work for is a Mercury dealer and we have access to all the databases and parts they have but I feel like there still may be some unknowns.  Currently have a 71C and I know this is a little higher than the rated horsepower max on these gears but I'm going to rebuild the gear prior to hook up.  

Starting this in the next week or two so any input would be greatly appreciated! 

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jims79 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: September-24-2019 Location: Newport Beach Status: Offline Points: 2	Post Options Post Reply Quote jims79 Report Post Thanks(0) Quote Reply Topic: Fish Nautique Repower Posted: October-15-2020 at 11:21pm
	Hey all, About to start a repower on my 79 fish nautique, taking out the original 351w PCM engine. Sourced a donor Mercruiser/Cummins 2.8EI 200 engine(800hrs). From my research the torque and horsepower figures line up perfectly around 2300-2400 rpm on both engines with a considerable fuel savings with the diesel. I have sourced the correct flywheel housing and coupler. Just curious as to if anyone has done this repower or something similar. I know I'll have to make a new harness (I have all the gauges from the donor engine) but other than that the stringer width measurements all line up pretty spot on. I plan on documenting the refit in pictures as well as I can but looking for anyone who has put a turbo inline four in any of these boats. The company I work for is a Mercury dealer and we have access to all the databases and parts they have but I feel like there still may be some unknowns. Currently have a 71C and I know this is a little higher than the rated horsepower max on these gears but I'm going to rebuild the gear prior to hook up. Starting this in the next week or two so any input would be greatly appreciated! Picture for attention

GottaSki Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: April-21-2005 Location: NE CT Status: Offline Points: 3365	Post Options Post Reply Quote GottaSki Report Post Thanks(0) Quote Reply Posted: October-16-2020 at 8:33am
	Welcome, and we look forward to learning more as your project goes!
	"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing." River Rat to Mole

Fish Nautique Repower

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