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1998 Catalina MKII - needs new engine. Seeking rebuilt Universal M25X - 3 cyl. Appreciate any tips on where to find/buy a rebuilt engine or have ours rebuilt if that makes more sense. East coast preferred. MD/DC/VA if possible.
 

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What's wrong with your current engine? A rebuilt engine is going to cost half or more of the cost of a new engine and you still have the cost of pulling the old one and installing the rebuilt one if you can't do that yourself. A 14 year old diesel should still have plenty of life left in it.
 

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So you already have a MX-25 and you want to just swap it out for a already re-built MX-25..is that correct? If so then it seems unnecessary as Jim said...should be alot of life in her still...might want to send out a few parts maybe though but...for re-conditioning...
 

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It'd bre really hard to find a M25X engine because they never made one called that.

There's an M25.

There's an M25XP

and there's an M25XPB (B stands for "But you don't want to get this one 'cuz is rattles like crazy).

Here's something that might help: Rebuilding the M25-XP - C34
 

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Or if you want to swap it for a new one, try Beta Marine Engines. Here is the equivalent to an M25-XP Beta 25
 

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The placard on your engine should tell you the exact model.

It might help if you post exactly what is wrong with your engine and where your boat is located. It might help folks recommend where to go for service on the bay. Who knows you may not need a new engine after all.

The Tech Link Stu posted is a great source of info on these engines. A lot of folks here will recommend digging into a rebuild yourself. You may or may not be comfortable doing that.

The most common source for a replacement if you're set on a swap is probably Beta Marine (Beta Marine US Ltd. Distributors for Kubota based marine). A search of this forum will turn up threads from folks who've installed their engines. They also have quite a few dealers on the Chesapeake.

Last fall/winter Catalina had a number of brand new M25XP's still in crates that they were selling off. I'm not sure about pricing, but an email to Catalina will get you the information if they still have them.

Best of luck. Contemplating a new engine is no fun.
 

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One of my fellow yacht club members had his M25XP rebuilt a couple of years ago for a very reasonable price by an American company who rebuilds Kubotas for the non-marine market. I believe it's based on the the Kubota D950 engine which is used extensively in all sorts of devices like tractors, lawn mowers, etc.

The cost was much less than the cost of a new motor.

I don't have the details right now but I can get them. Also, maybe try Googling for Kubota rebuilders.

Final thought, I believe I read not long ago that Catalina Yachts had a couple of M25 XPs in crates that there were selling for a big discount. Might have been M25XPB's though, I can't remember.

cheers,
Graham
 

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hey, Jim. My Newport had the same model. The post from gmackey is what I did. The only thing is the oil dip stick is on the left. The D950 model is correct if you want to change it out. Same engine all the way around. Bolts right in. cheaper than the marinized version.
 

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1998 Catalina MKII - needs new engine. Seeking rebuilt Universal M25X - 3 cyl. Appreciate any tips on where to find/buy a rebuilt engine or have ours rebuilt if that makes more sense. East coast preferred. MD/DC/VA if possible.
Call around to local machine shops and find one that rebuilds marine engines.That will cut down on some labor cost.Most marinas that rebuild engines charge for the tear down and rebuild,plus they still send the engine parts out to a machine shop for cleaning,machining,and rebuilding of certain assembles,like the cylinder head.If it's an industrial based engine,parts should be cheaper and easier to come by.
 

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Contact Ken Roy at Catalina Yachts. I believe they still have several brand new MX-25's they are trying to get rid of. I'm not sure if they are Xp's or XpB's
 

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hey, Jim. My Newport had the same model. The post from gmackey is what I did. The only thing is the oil dip stick is on the left. The D950 model is correct if you want to change it out. Same engine all the way around. Bolts right in. cheaper than the marinized version.
The oil dip stick IS on the port side on Kubota engines. That hole was simply plugged and the port side standard dipstick installed on the boat engines. A friend of mine bought a used M25 (same as the XP except for a few details and a D850 block) and considered using the port side for his Pearson 30-something.

The marinized version only adds the HX - not a big deal

Buy Kubota, save mucho $$. :)
 

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I have a M25Xp in my C-40...a bit underpowered for an 18,200 lb boat but not a bad tradeoff since it's a Kubota tractor engine and parts are very easy to find...the motor was installed in 1988...probably 500 hours...need to find 3 new injectors for her...has a new injector pump... everything else just needs cleaned up...new fuel filters...slap in the injectors and hopefully she will be okay...not that simple sounding but something like that...got plenty of manuals/ info about the engine came with the boat... we'll see how it goes soon enough
 

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Discussion Starter · #14 ·
My engine has been having issues for three seasons. Started with raw water pump going bad, mechanic said it could not be fixed. Called Catalina they thought that sounded odd, but three mechanics laters, it cant' be fixed. Cam shaft stuck, does not turn?? We put on a little electric pump for temporary solution while we figured out what else to do. In the meantime, fuel injector got stuck, had that rebuilt, then after all of this, she still has issues. Started her up this year and she just sputters. Failed three compression tests. Boat is in Oxford. Seems cost of getting engine rebuilt is similar to buying a rebuilt engine (but they want my core in exchange as part of deal). Will look into the Kubotas mentioned and also the crated new Catalinas. If the new one is M25-XPB is that a good choice?
 

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Discussion Starter · #15 ·
I need to see exactly what we have, if it's an XP or an XPB. It rattles like crazy so maybe it is the "B" version.... need to verify.
 

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Contact Al at Schooner Bay Marina at 715-779-5849. He rebuilds Universals. I did a 1 for 1 swap with my M-25XP from my old Catalina 36. Price at the time was $4900 which included shipping, and they knock $1000 off that if you send the orignal back to them (they pay shipping for that).

I could not have been happier with the engine, ran like new, looked new, literally NO issues with it at all; and the rarest gem of all (apparently) in the marine industry, great and proactive communication on their part. If there are delays, he will contact you in advance to keep you up to date.

(No affiliation, just very happy with the customer service and quality of work)
 

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Discussion Starter · #17 ·
Thanks creedence! I have talked with Al, right now he is a very good option on a rebuilt. Exploring a few other options posted here, but I really appreciate your great comments on Al's work. He seems like a good bet when I spoke to him about his process, etc.

Thanks so much for the candid comments!
 

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If the new one is M25-XPB is that a good choice?
Did you read my first reply? M25XPB, B means don't bother. Folks with C36s who have them report they rattle like crazy and can't find an idle speed less than 1400 rpm. Don't go there. Please.

See no reason you can't fix yours without having to replace. Low compression? Replace the rings. Did you read the Rebuild link I provided.

Good luck.
 
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