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m25

  1. The Art of Sailing and Dating Romance

    E32-3 The Art of Sailing and Dating Romance

    Sail date: June 18, 2021 The Art of Sailing and Dating Romance I had Friday off work and was sailing from Pt. Richmond to San Francisco. The plan was to pickup The Miss at St. Francis Yacht Club and sail back to Richmond for the weekend. We were both excited -- this was our first time doing...
  2. Going Overboard with the Engine Instrument Panel

    E32-3 Going Overboard with the Engine Instrument Panel

    Before... ...After It's amazing what a little fresh paint and new gauges will do for an engine instrument panel. And, a box of new marine grade wire, some fancy LED-backlit buttons, a grip of heat-shrink ring terminals, a heat gun burn on my upper arm, 1/8" weatherproof rubber matting...
  3. Fuel System Refit with a Racor 500

    E32-3 Fuel System Refit with a Racor 500

    Intro When I started thinking about the fuel system on Rumour, I realized there were a few things to consider. I heard a number of recommendations to remove the old metal fuel supply lines and check or replace the old Racor 200 series primary fuel filter/water separator assembly. Both are...
  4. D

    M25 Rough Engine Operation

    The Universal M25 (5421) on the Ericson 33 I sail has not been starting easy or running normal since launch in May. Once started, it coughs and chokes at idle to the point it stops running, but if we keep the RPM at 800 or above it runs OK. We added injector cleaner to the fuel tank to help if...
  5. B

    Universal M25 Tranmission Oil

    I feel silly asking this question, but where do you check/change the transmission oil on the M25 engine? I have an Ericson 27, so it's a bit difficult to access as is. I found a likely-looking bolt on top, but didn't want to go tearing into things without knowing. I have the short technical...
  6. P

    m25 drawings

    Does any one know where I can find measured drawings for the Universal m25 engine? I'm thinking of replacing my m25 with a m25xpb on my E32-3. I have drawings with dimensions for the xpb but can't find a similar drawing (with dimensions) for my old m25. I want to compare the two to see if a...
  7. clohman

    M25 Diesel lost top-end power after service

    After sitting for about 2 years with diesel fuel biocide and additives, I hired a diesel mechanic for preventive maintenance which included: Adjust the valves, check the injectors and generally inspect the motor. Afterwards, the motor in neutral spins to 2,900 rpm but only 2,200 under load...
  8. N

    M25 Oil Pressure Sender Threads

    This was definitely a boring day. I just figured out that Kubota ie Universal Diesels use British Standard Pipe Threads (BSPS) which are very close to our NPT threads - but mostly different. Their Oil Pressure Sender "looks" like an 1/8 -27 NPT but is actually a 1/8 - 28 BSPT. Close! You can...
  9. G

    Wix vs Fram

    I decided to change out all the filters myself this year and did the two Universal engine mount filters (oil and fuel) on my E32-III M25 without a hitch. A couple of weeks later I got replaced the primary filter in the Fram fuel/water separator cartridge canister. The guy at CC Marine here in...
  10. D

    82 M25 Pulley

    This evening had problems with engine. Found pulley not spinning in fan belt loop. It is the top pulley , not sure what it drives. I suspect it is the anti freeze pump. I know it`s not the crank or raw water pump, and it defenitly is not turning. although the other pulleys do turn. Any body able...
  11. R

    Universal M-25 bleeding plug

    Hi folks, does anyone know the part# for the screw on the injector pump bleeding plug on M-25? I opened up the engine compartment to find out that the screw cap somehow (no clue, honestly) broke off. I can open and close it using pliers, but it's a hassle. I've looked all over the...
  12. J

    temp alarm M25, where to put the switch?

    Good afternoon, Any good suggestion where to put the switch for the temp alarm for the M25? There is only one available port on the thermostat block, and I don't feel like drill/tap another hole in the block, as was suggested by a neighbor... thanks, Jolanda Lena, 1986 Ericson 34...
  13. Rocinante33

    Torque Specs for M25

    Does anyone know where I can find torque specs for an M25 for the following; Damper plate to flywheel Trans to bellhousing Bellhousing to engine block thanks,
  14. N

    M25 Speed Adjustments

    Where does one adjust the idle speed on a Universal M25? Sometimes I think I know what I am doing, but now I'm not so sure. The obvious idle speed adjustment is to only adjust the Idle Stop Screw on the top of the governor. See the photo. The other screw is the Full Fuel Stop, I guess. Now my...
  15. D

    M25 Alternator Bracket Upgrade

    Hi Guys I am installing the alternator bracket upgrade on my 82 M25 Universal. I searched the previous posts and see others have completed the upgrade in a short amount of time. I have the old bracket off but cant get the studs out of the coolant case attached to the engine block. Any...
  16. N

    Getting All Oil Out of M25 - How?

    I'm sure this has been addressed before but I could not find the exact answer. The M25 in out E32 is installed at a 13 degree down angle. When changing oil I can only get a little over 3 quarts out thru the oil pan drain plug suction hose. The rated capacity is 4 quarts. I am thinking there...
  17. N

    Did I kill my M25 Alernator?

    Just when I thought all was hunky dory after a week without shore power I noticed my Universal M25 not cranking over very fast. Serious. No AAA service for this. Some quick checking showed the Alternator only producing 13.2 volts and sagging lower if loaded over 5 amps. Not good. Well a new...
  18. N

    Universal M25 Temp Sender Resistance

    :confused: I noticed the temperature gauge in our Universal M25 was reading kind of high at about 195 deg F but the engine did not feel that hot. My optical temp guage and a thermocouple confirmed the actual thermostat housing was 171 deg F. Not liking things that make me worry I decided to fix...
  19. R

    For Sale: Universal M-25 diesel, Los Angeles area

    Used diesel, runs well. We bought it to replace a dead Atomic 4, but found it doesn't fit our boat. New alternator, improved alternator bracket, new fuel pump, other upgrades. Asking $3500. Email rschaffner@gmail.com for more information.
  20. R

    Never happened (RE: Cooling problem on M25)

    Hi, all, sorry - pressed a wrong button and posted a new thread... Back to the M25 cooling issue: this problem never happened on Fire Eater, so I thing Geoff is right - something is wrong with the cooling system. Water pumps - either raw water or fresh - may be out of order, for example...
  21. P

    M25 Service and Parts Manuals

    I am having some engine issues and would like to buy the Service Manual (and Parts manual?). I found two sources online and one says the service manual has a "photocopy quality, with some broken lines, etc." I have a couple of questions on this: 1) if you've found a good quality service...
  22. R

    M-25 fuel hoses

    Hi dear all, does anyone know the diameter of the fuel line between an electric lift pump and the secondary fuel filter for the Universal M-25? One document I found says 5/16, other says 1/8... Thanks in advance, Stanly
  23. G

    M25 alternator mount cracks gear case cover

    I am in the process of installing a Balmar alternator on my 1985 Universal M25 engine. In the course of researching the mounting (on the Catalina site) I came across dire warnings about how the pre-1988 method of mounting to the bracket, which is attached to the aluminum gear case, will...
  24. Sean Engle

    Heater Hoses - M25

    I have a Universal M25 diesel in my 35-3. I just installed a new Iso-Therm water heater, and it's inlet/outlets for the heatexchanger are 1/2" instead of the 7/8" that was on my Raritan. Can I just replace the hoses and fittings, and reduce them to 1/2" - or will I be harming the engine and it's...
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