Originally Posted by Chasen
I recently purchased a Catalina
27 inboard with a universal diesel
5411. I noticed wear to the oberdorfer water pump and planned on replacing it with the updated 202m15. Today as I removed the existing pump I ran into lots of corrosion
and rust. It almost made removing it impossible. As I got further into the process I noticed a huge issue. The leaking water pump seemed to have corroded a roughly 2 inch hole just under the water pump. Through the hole you can see the exposed gears inside.... I feel like this is a large issue that may require lots of $$$. Has anyone had issues like this and are they reparable? Are there welded plate patches or something of the sort or has the exposed mechanics underneath seen to much fresh air??
Man that's a mess. Don't know how much you know about these things but the Universal is a Kubota-based engine which is now serviced by Westerbeke
, The part you need, 299411 gear case is no longer available.
The base engine is a Z500, which was used widely in many different applications, from boat
engines to snowblowers, so there is a very good chance that you can find a used one somewhere.
The adapter plate for the water pump, is p/n 298477 and is not supplied by Kubota, i.e. it is proprietary to Westerbeke/Universal, and also appears to be NLA.
It may be possible to have the case welded, to do that properly it must be removed, degreased and the mating surfaces ground to solid metal. This may or may not be possible; the corrosion may have progressed to the point that sealing surfaces between the block and the cover are compromised, at which point the cost for welding and reconstruction will probably exceed the price
of a used cover.
Heat-induced distortion may also be an issue.
Same goes for the adapter plate, though a competent machine shop could fabricate one without much trouble. Cost is another thing entirely...