| Author |
Message |
    
Yianni Michaelidis
| | Posted on Sunday, March 17, 2002 - 07:59 pm: | 
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Has any one heard or used this engine.
I hear that is a difficulta engine to ground properly. Any true to this myth?
Any manuals we can purchase? |
David
| | Posted on Thursday, May 09, 2002 - 12:00 pm: |
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To what negative consequances could lead the crankcase high pressure in the industrial diesel engines? |
Elie H
| | Posted on Wednesday, July 24, 2002 - 09:26 am: |
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I own a Volvo MD 22L that is a twin brother in green of the Perkins Prima 50. It is a very modern engine with overhead cam shaft. This engine do not use the block a ground, and each electrical component (alternator, sensors etc., uses a ground wire connection. I'm not aware of any particular ground problem. |
Xavier
Visitor
| | Posted on Monday, March 26, 2007 - 07:50 pm: |
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Hello,
Recent owner of a Prima 50, 1990 on a sail boat. I am until now - still few time - quite happy with this engine, eventhough I have read this is the worst engine build by Perkins. Will see.
It emits a white smoke through the exhaust pipe. And does not stop even when the engine is warm. Any tips, any guesses?
Cheers,
Xavier |
Brian Wormald
New member
Username: brianandmaureen
Post Number: 1
Registered: 04-2008
| | Posted on Monday, April 28, 2008 - 02:36 am: |
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I have a Perkins Prima 50, installed in our Moody 44 from 1992. We purchased the boat 1n 2001 and from then onwards up to Engine hours 1948hrs no problems except a duff rev counter. Normally we run at 2400 RPM for 7.5 knots. My belief is that when an engine is running smoothly, dont touch it, except for oil & filter changes every 100 hrs or once per year regardless. White smoke indicates unburned or dirty fuel, so firstly get rid of old fuel, clean the tank & have the injectors checked. You might find this cures the problem !!!! |
Athanasiou A
Visitor
| | Posted on Monday, June 23, 2008 - 03:17 pm: |
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I have a Jeanneau Sun Magic 44 with Perkins Prima. I think it is very reliable but difficult to repair (especially engin timing ) unless you have the Repair Manual. For grounding mine had a dedicated relay to ground the engine block only during start sequence!
So far I service the engine by myself and I ve done as far as replacing the Timing Belt and the fresh water pump |
jacques P
Visitor
| | Posted on Wednesday, August 06, 2008 - 05:57 pm: |
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I have a Perkins Prima M 50 and I went back and forth in the Virgin Island from Canada.
This engine start well, is reliable and powerfull.
The engine have an isolated ground to protect it from electrolysis.
The weakness of this engine is the electrical system ( harness, control pannel, starter )not designed for marine use.
The replacement parts are expensive and hard to find ( just try to find an oil filter for this motor in USA ). |
Robert Rossi
New member
Username: equinoxsolstice
Post Number: 1
Registered: 02-2009
| | Posted on Thursday, February 05, 2009 - 12:10 pm: |
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I've had great luck with Trans Atlantic Diesel for parts....they seem to be able to get anthing for it. |
A J Mayers
New member
Username: amayers
Post Number: 1
Registered: 02-2009
| | Posted on Wednesday, February 18, 2009 - 09:39 am: |
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Trans Atlantic Diesel is a good source for parts, however ALL sources I have found for parts for the M50 are expensive beyond belief. Parts are easily 4-5 times as expensive as they would be for any normal motor ... even a marine motor. Examples starter $1000.00, control panel $1300.00, wiring harness $900.00 ... lest we not forget, this is a 50HP 4 cylinder ... if you need an injection pump ... good luck. If you are persistent and go to other sources, you can source some of these parts at 40% less than the list prices quoted above.
The motor will keep running and running for a long time ... but it will bleed you to death on the price of parts. I am considering repower with a Yanmar, due to the parts pricing and the constant need to have parts shipped from England.
..ajm |
A J Mayers
New member
Username: amayers
Post Number: 2
Registered: 02-2009
| | Posted on Wednesday, February 18, 2009 - 09:47 am: |
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Filters are easily available in the US, from FRAM and some from NAPA
NAPA Filter Gold 3166 (Fuel)
FRAM P3711 (Fuel) == NAPA 3124
FRAM PH 25 (Oil) – NAPA cross reference filter doesn’t fit my boat as the can is 1/2" longer and cannot be installed.
I think the P3711 is the spin on fuel filter by the injection pump (i am hundreds of mile from the boat now), the other fuel filter is for the fuel water separator and may be different on your application. |
Michael Niedermeier
New member
Username: michaelbisturi
Post Number: 1
Registered: 05-2009
| | Posted on Monday, May 18, 2009 - 07:47 am: |
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Hello, do you know where I can buy such a control panel for the m50? I could not find anything in the web. If possible I would take a used or reconditioned part also. Any tips, any guesses??? |
A J Mayers
New member
Username: amayers
Post Number: 3
Registered: 02-2009
| | Posted on Tuesday, May 19, 2009 - 10:27 pm: |
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TransAtlantic diesel priced the panel at $1300 a couple of years ago. ANY Perkins diesel ealer (perkins.com) can get you the panel. I'd be surprised if you can find a "reconditioned" one. The VDO instruments can be sourced, as well as the push bitton switches (from any Perkins dealer), and the remainder could probably be rebuild by a TV or Radio repair shop ... if you can find one of those. I replaced my keyswitch with a toggle. The panel is pretty simple, some diodes, gauges, 3 Momentary ON switches.
I replaced the VDO lenses and a couple of Momentary on switches and the panel works as if it were new after 18 years.
Good Luck |
P.M. van der Avoird
New member
Username: pavoird
Post Number: 1
Registered: 06-2009
| | Posted on Monday, June 01, 2009 - 03:55 pm: |
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Perkins M50
This weekend the STOP button refused to stop the engine . Had to stop it by shutting off the diesel pump. What might be the cause? any ideas, anyone? |
Van Eerdewegh Marc
New member
Username: mve
Post Number: 1
Registered: 08-2009
| | Posted on Monday, August 17, 2009 - 07:02 am: |
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Perkins Prima Series M50 inboard engine
On my boat since 1992.
only 1200 hours.
Trouble : Engine suddenly blocked while turning at 1800 rpm (no problem of heating nor lubrification).
Technician indicates camshaft being broken (distribution belt is OK and had been replaced)!
Repair shop says this engine has a very bad reputation and is not worth to be repaired.
Any other such occurences ?
Thank you for your answers.
Marc VE |
Robert Rossi
New member
Username: equinoxsolstice
Post Number: 2
Registered: 02-2009
| | Posted on Monday, August 17, 2009 - 08:39 am: |
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Many people would disagree with the technicians claim. This is a marinized version of the same engine that has been used with great success on thousands of Land Rovers. Mine has 2600 hours and is running strong, at the beginning of each season I run it at over 3000 rpm to make sure everything is operating well. Diesel shops make much more money with less effort by selling you a new engine--they make several thousand dollars on the new engine and then the hourly cost for installation. It is also a free wheeling engine, so when the cam shaft broke there should not have been a problem with the pistons hitting the valves unless a valve was held down (unlikely) in the process. Check with Trans Atlantic Diesel in Virginia for part availability. |
A J Mayers
Member
Username: amayers
Post Number: 4
Registered: 02-2009
| | Posted on Monday, August 17, 2009 - 04:17 pm: |
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I have about 10K hours, parts have to be shipped from England, but the engine is rock solid. Most marine mechanics I have asked casually about the Perkins M series say it will keep running when others may fail. Sherry at TransAtlantic Diesel will find you whatever you need. Good luck. |
Amanda Glickman
New member
Username: asthorn
Post Number: 1
Registered: 09-2009
| | Posted on Wednesday, September 16, 2009 - 05:37 pm: |
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Interesting comments on the M50. The presence of this engine was part of the reason for purchasing the sailboat that I eventually shipped to Canada. I've been running it, sometimes quite hard, for 4 years with almost no issues. The only 2 events I've had was 1. sailing in 45 knots with a clogged fuel filter (the previous owner didn't have a primary!) and 2. just a few weeks ago a bizarre problem involving the adapter plate between the engine and the raw water pump - the tab on the adapter plate had worn and the shaft on the pump had an "S" shape as a result. Engine ran fine, just couldn't cool! I'm suspect that this area had been mishandled in the past given that we had to rebore the mounting machine screw holes for the "dust plate".
I usually run at 1800, but the efficiency curves suggest good to about 2000. I read that a few people run up at 2400. Does anyone have any thoughts on this? |
A J Mayers
Member
Username: amayers
Post Number: 5
Registered: 02-2009
| | Posted on Wednesday, September 16, 2009 - 10:21 pm: |
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Had same problem with bracket for raw water pump where the tang that mounts to camshaft drives the water pump. Perkins makes a special alignment tool (I had the machine shop guy make me a different design alignment tool). If the bracket is ever removed, it must be realigned with the tool, and THEN have the bolts tightened. Otherwise you have a diesel driven lathe that will slowly grind the ends off the tang until it is only a post!!! |
russell millard
New member
Username: nuget
Post Number: 1
Registered: 10-2009
| | Posted on Sunday, November 01, 2009 - 01:53 am: |
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I have volvo MD22 in my boat for 15 years.I would like to do complete overhaul.I beleive perkins prima engine is exactly the same engine.Are the parts inter changable.And if so would they be cheaper.Any help would be appreciated |
robin mandy
New member
Username: robinm
Post Number: 1
Registered: 11-2009
| | Posted on Friday, November 20, 2009 - 11:26 am: |
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unable to start the engine, wont crank at all, but had been running and starting well, checked starter/solenoid OK, however found 4 lts water in the sump and clean water system low. any ideas where the transfer is happening in the engine? |
Glenn Simpson
Member
Username: trackhappy
Post Number: 27
Registered: 07-2009
| | Posted on Saturday, November 21, 2009 - 05:05 pm: |
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Hi Robin.
Assuming the starter is actually trying to turn her over but can't, with water in the sump as you found I'd suggest water lock and cylinder head gasket gone. Head off, clean up, crack check and service the head. You can prove it by removing the injectors and see if she turns then.
All the best.
Glenn. |
