I have a 2010 Hanse 545 with Yanmar 4HJ4-HTE engine. The previous owner has ignored a raw water leak with the FP 6000i genset which has resulted in quite a bit of corrosion damage to the engine and shaft components.

I'm having difficulty locating information on the rubber shaft coupler, thrust bearing and PSS seal. The PSS seal is 45mm and it shouldn't be too difficult to work out the stern tube diameter, so sourcing correct part shouldn't be too difficult (famous last words)...

I'm more concerned with the thrust (intermediate) bearing which is so badly corroded that identifying make/part numbers is impossible.

Has anyone replaced these components, access is really poor for a boat this size and I'm wondering how difficult this proved to be.

A schematic from Hanse with part numbers would be amazing..... :-)

Kind Regards

Christian

SV Salt - Hanse 545.

Do you mean the gearbox-shaft coupling? Our the shaft bearing?

Pictures??

Shaftbearing

Gearbox to shaft kinetic coupling

Our are you talking about the carbon water injected stator of the PSS shaft seal 

“CF-AGM-50-3”and not “CF-AGM-55-3”

Sorry 

Hi. Thanks for your reply.

I've highlighted the thrust (or intermediate) bearing below.

If the bearing inside is in bad condition try to contact Centa@centa.de www.centa.de

I am going to do the same job on our 575 in Nov or Dec this year before we leave the Caribbean heading for the Pacific. It seems buying the coupling and thrust bearing is no problem from various suppliers in Germany. I am hoping not to need to replace the PSS shaft seal. The access on the 575 is difficult as well. I would be interested in how you go with this job and any tips you may have. Good luck. 

I located the following manual which looks very helpful after reviewing the info Wilfried posted.

https://ck-engineering.ru/index.php?route=information/download/load&file=59" rel="nofollow - https://ck-engineering.ru/index.php?route=information/download/load&file=59

Unfortunately, it's the bearing itself and not just the housing that is corroded, but now I am armed with the part information and how the coupling goes together. How hard can it be.... 

I'm tackling the job in August when Salt is hauled, I'll post any lessons learned.

Quick question, do you have information confirming it's the CF-AGM-50-3 and CENTA-TB-3 for the 545 with 110hp Yanmar. Planning to order replacement and just want to ensure that's the correct part. It appears there are a number of couplers that potentially fit a 45mm shaft, however the one you refer to seems most likely.

Thanks again for your insights.

You can’t find it in any documents  (users manuals: Hanse, Yanmar) so far I know,you can try it in Australia by the local dealer Windcraft yachts They are one of the only Hanse dealers for many years.

I took a lot of measurements of the coupling and the TB 3 and the only who’s come out is CF-AGM 50-3 + TB 3.

I ended up buying the entire coupling (CF-AGM-050-3-2.3) from local distributor in Australia. Cost was approx US$3200 delivered. This was the right decision, there was no way in the world the old coupler was coming out intact.

As my coupling was heavily corroded, it was necessary to cut it out. I used an angle grinder with a cutting wheel to cut the bolts holding the rubber donut and removed it first, then proceeded to cut other bolts removing all components piece by piece. Not withstanding the corrosion on my unit, it would have been VERY difficult to remove this using non destructive measures. Heat can't really be used and bolts have strong thread locker along with high torque and access is poor even after my disassembly. Not sure how you would ever change PSS seal, presumably people have managed it?

Once the coupler was removed, the shaft slid out easily and was just the right length to drop out before being fouled by the rudder. All in all, I probably spent a day disassembling the cupboard and cutting out the coupler.

Unfortunate we broke one of the rubber absorbers of our Centaflex kinetick AGM 50 coupling a month our 2 ago.

After 15 years +2500hours We dicided to refit the whole shaft coupling

Just reused the metal parts like flange’s ,the shaft to Centaflex connection and the propshaft after rectifying the straitness by a specialized company.

new Centaflex absortion rubbers(2x), the shaft end bearing Centaflex, front and back stuffing boxes, new PSS bellow and the 4 Yanmar engine silent supports.To get the engine in line with the propshaft we have to place extra inox washer plates( 8mm) under the front supports to get it right.Conclusion :the engine-shaft where never correct in line from the factory (probably the cause of the broken rubber)

We fix the whole job without destroying anything of the furniture removing the engine our the generator who is on the top.

The engine now run very smootly and quieter as before.

But it was not easy at all because the very difficult acces.