Kanzaki Gearbox

[Richfef]

My gearbox is slipping in forward gear. I have a kanzaki KB W 10 on a Yanmar 3HM35F.

I am hearing that Yanmar no longer makes some of the parts for this unit.

I'm not able to find a new one or any rebuilt unit for sale.

East Coast Marine in New Jersey says he may be able to rebuild mine but if not - there is no solution

Seems hard to believe.

Boat is 1992 Pacific Seacraft - 1800 engine hours ...

I'm on southbound cruise to Florida but stuck in Chesapeake Bay til I can get transmission repaired .

Any help/suggestions?

Thanks

[Bruce Beard]

Give Oldport Marine in Newport a call. They always had a big pile of used Yanmar parts around...
tel:401-847-9109

[GordMay]

Free downloads available here:
➥ https://www.spectrumengineering.com....rvice-manuals/

[coopec43]

yanmar 2qm 15 with kanzaki kbw 10 gearbox - Cruisers & Sailing Forums
www.cruisersforum.com › ... › Engines and Propulsion Systems
Aug 17, 2016 - 1 post - ‎1 author
Hi. dose anyone know where in the UK i can get parts for kbw 10 gearbox . Forward clutch is slipping. Also is there an othere box that will fit the ...
Kanzaki Clutch box failure 15 posts 27 Jan. 2017
Who to talk to about a Yanmar KBW10 Transmission? 11 posts 24 Sep. 2014
Care and Feeding of a Kanzaki Transmission 12 posts 25 Apr. 2014
Kanzaki KBW10 lost forward gear 7 posts 28 Jan. 2013
More results from www.cruisersforum.com


Replied by hayden on topic Kanzaki KBW10 D/E Transmission & Yanmar 3JH2E Failure, Repair & Replace
I just wrote to ALFRED At Schooner Bay, he says he has plenty of KBW transmissions and many parts. He just closes for winter vacation in Feb and maybe Mar. Here is his reply.....
......copy beloy........
Hello Hayden !

We close during February -for winter vacation -but otherwise always here.
Can supply with KBW 10 Gears or any other. Just need to ask for them .

I appreciate your promotion!

Have many resources available.

Thanks a mil. AL

Schooner Bay Marina- Imported Motors
Authorized Dealer for Westerbeke - Universal - Yanmar & Beta Marine Diesel Engines
90530 Pageant Road
Bayfield, WI 54814
715-779-3266
holzralf@yahoo.com
www.schoonerbaymarinallc.com

........end copy.......

[Richfef]

Originally Posted by coopec43

yanmar 2qm 15 with kanzaki kbw 10 gearbox - Cruisers & Sailing Forums
www.cruisersforum.com › ... › Engines and Propulsion Systems
Aug 17, 2016 - 1 post - ‎1 author
Hi. dose anyone know where in the UK i can get parts for kbw 10 gearbox . Forward clutch is slipping. Also is there an othere box that will fit the ...
Kanzaki Clutch box failure15 posts27 Jan. 2017
Who to talk to about a Yanmar KBW10 Transmission?11 posts24 Sep. 2014
Care and Feeding of a Kanzaki Transmission12 posts25 Apr. 2014
Kanzaki KBW10 lost forward gear7 posts28 Jan. 2013
More results from www.cruisersforum.com


Replied by hayden on topic Kanzaki KBW10 D/E Transmission & Yanmar 3JH2E Failure, Repair & Replace
I just wrote to ALFRED At Schooner Bay, he says he has plenty of KBW transmissions and many parts. He just closes for winter vacation in Feb and maybe Mar. Here is his reply.....
......copy beloy........
Hello Hayden !

We close during February -for winter vacation -but otherwise always here.
Can supply with KBW 10 Gears or any other. Just need to ask for them .

I appreciate your promotion!

Have many resources available.

Thanks a mil. AL

Schooner Bay Marina- Imported Motors
Authorized Dealer for Westerbeke - Universal - Yanmar & Beta Marine Diesel Engines
90530 Pageant Road
Bayfield, WI 54814
715-779-3266
holzralf@yahoo.com
www.schoonerbaymarinallc.com

........end copy.......

I'm having issues with KB W 10. Have been told ZF12M is an alternative but may require some modifications.

[GuyFromTheNorth]

No experience with the KBW 10 but I had the same issue (slipping) on my KM2a on my Yanmar 2gmF13.

I also ran into the "no parts" available issue so buying new cone clutches was not an option.

In my case the yanmar manual says the WRONG oil to use in the transmission so the PO's were using the wrong stuff for many years (possibly since assembly). The yanmar manual states to use 30w NON-detergent oil.

If you climb inside and actually reach around the transmission and take a picture of the serial plate on it (I did) you can find out what Kanzaki itself says is the right oil. In my case it was 30w HIGH detergent oil.

What's the difference?

Non-detergent oil has nothing in it to reduce varnish build up and sludge.
High-detergent oil has thinners\additives to prevent and remove varnish.

Why do cone clutches slip?
1) From abuse (hard shifting with RPM up, improperly adjusted shifter resulting in partial engagement, etc).

2) From varnish build up on the cone face allowing slippage.

I changed out with HIGH detergent 30w every 10hrs or so of motoring this summer and by the end of the season my slippage disappeared entirely. It didn't cost me much more than 25$ worth of oil and some alone time in the lazarette with a small handpump lol.