Hello from Belgium

[Junior butts]

Hi, i have just registred and i would like to say hello to everyone from Belgium! I make boating since i am a kid with my father and we bought a bayliner 3988 new in 97 with cummins. And i often travel on the web to find informations on bayliner and cummins so i found tony’s site and loved the repower project and the job they do! In Europe cummins is not well known compared to US because here Volvo is almost always the first engine choice…. Forgive my mistakes, french is my mother tongue….

Topic

[Junior butts]

thanks for the history, i cross fingers with my hurth and hope repitch propellers will give some fresh air to the gear…

i ‘d like to share with you my story of my baylinerS, in fact one 3988 of 1995 and one 3988 of 1997… the first one was reshipped to US and a brand new one was given back to us… why?

in fact, the first one was hino powered but that’s not the problem, when the ship was lifted out dor winter ,the mechanic noticed cracks on the hull, after investigations it appears that the hull was too thin and to avoid a trial they send us back a brand new one with cummins because it was 2 years later and during that time they changed engine supplier… the reason was that in this factory the workers were pushed to make a maximum number of boat and the result was that they closed the factory… a sad story. but we are glad to have cummins and no Hino anymore because they were more smoky compared to cummins… and  a new boat by the same way!!!

here it’s 8 pm, goodnight!

 

[Tony Athens]

Yes,  the HSW 800 Hurth ( AKA ZF80A) has a very colorful history and it all started when ZF Padova bought the CH Hurth Company in  Germany and moved production to Italy in about 1994-ish.. Something was lost in the translation, so to say,  as the early German made gears never had issues..I still have some running just fine.  A “new & improved” plug & play replacement for your gear should it come down to that,  is a ZF85A   But you are still over propped regardless, and that needs to be addressed.   Tony..     

[Junior butts]

Thank you, the boat is still out for winter so i’ll talk with my mechanic if he can remove the propellers and make them repitch. And i found on the bayliner owners forum that there is a problem in the 3988 with cummins/hurth… It looks like, if i understood everything, that the link beetween engine and hurth is wick so it break, not the engine, the hurth… Even in the meridian with 425 it’s still the hurth 800 with the link problem… The pb doesn’t comme from cummins neither hurth, it looks like it comes from bayliner because it’s them who make the link between the engine/gear so reduce pitch i think is even more crucial on my boat…

[Tony Athens]

Propping for maximum available power and engine life

Rob is being easy on you.. You need to make OVER  an accurate 2900++ RPM under fully loaded conditions, and make that EASY..

 

If your ARE NOT  doing that, then plain and simple in my book, you are leaving HP on the table,  and over loading your engine besides……………….. Making this 100+++ RPM over MINIMUM RATED and making it EASY is the key..

Your call from here.

Tony

[Rob Schepis]

On the edge…

First sea trial and clean bottom and you “make” 2,800.  We call this propped “on the edge” (at best)….  sure your propping could be worse but there is still definitely room for improvement.

More reading:

Engine Life vs. Engine Loading

 

 

[Junior butts]

Thank you, i’ve just read the cummins discussions and learned already a lot such as the 370 is the same as 330 under 2800… we have also repitched à few years ago because we were unable to make 2800 because tender, davits, bikes, stuff… And now, first sea trial after winter, full fuel, no water, no food, clean hull we make 2800. We have Hurth gear. 

 

 

[Rob Schepis]

Learning Your 6BTA 5.9

 Aymeric, Below is an invaluable link for any 6BTA 5.9 owner.  Be sure to click on the “Learning Your Engine” tab under “Technical Resources.” http://www.sbmar.com/engine-info/cummins-6bta-specifications/  

[Rob Schepis]

Welcome Aboard

You’ve come to the right place if you want to learn and share about your engines.  There’s probably no one single source of information anywhere on the globe that will give you more..

[Author]

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