seized Volvo MD11C

[Deleted]

My engine has overheated and seized. Volvo Penta MD11C.

Inlet strainer, impeller, thermostat, oil level are all fine.

I noticed water dripping from the back of the pump after it had stopped - seals? When I checked impeller and thermostat, there was no water there as I took them apart..? Is that normal?

Any idea how to unseize? I was planning on removing the injectors and squirting some penetrating oil in.. Further dismantling and rebuilding is, I fear, well behond me.

Any ideas, help, advice.. much appreciated!

Cheers,
Peter

[ishtar]

Peter,

Can I suggest that you post this on the YBW forum as well? It has a much wider readership and there are some good mechanical types there. If it was me I'd perhaps wait and get some advice before squirting anything into the engine. To me, it sounds fine, but I'm no mechanic, and I'd hate to see you do something which could make the problem worse in the long run.

www.ybw.com/forums/ubbthreads.php/Cat/0/C/1

[robinstall]

Well if you think about it, even if you get the engine turning again
would you just fill up with fuel and start using it knowing you may have a defect engine?
I perhaps not, surly you would take the engine out of the boat and get it overhauled knowing you have a top bit of kit when underway.
So my advise would be to do that, and get an engineer to overhaul the engine and check all components rather than guess the possible problems.

Good Luck

[Deleted]

Thanks for the advice guys

I would love to take the engine out and have it thouroughly checked / overhauled - or preferably replaced. Unfortunately my wallet says otherwise. I will just have to learn myself (with help from these forums etc.) YBW and others have loads of info. too.

Latest developments:

have removed injectors (they didn't look too hot - all sooted up), sprayed plenty of WD40, replaced ...and managed to turn and start it ! However, there is now no water flow at all . Scince getting home, I wonder if I put the impelloer back the wrong way round - but I don't think so. I have also removed exhaust manifold to check for blockages. There's certainly loads of crud in there, but it doesn't look blocked.

returning for a moment to its original symptoms. I had just replaced oil / filter. I used 15/40 (as recomended and provided by the Volvo dealer). The manual says 10winter / 20summer. Anybody any thoughts here? The oil light was probably on for approx. 10 mins before it stopped - appeared to be plenty of water flow during that time. Is it more likely to be an oil system problem or a cooling problem? - surely it can't be 2 seperate problems developed at the same time?

...anyway I'm off to the club for the work party - maybe see some of you there....

Cheers,
Peter

[draycott]

hi sorry to here about your engine
it may be wise to check the water in take on your hull as this may be blocked with mussel preventing water from reaching your pump and alowwing the pump to run dry
hope this helps regs kevin

[Deleted]

I haven't checked the water inlet from the outside yet - but I have taken the top off the filter and opened the seathingya bit - there's certainly a reasonable amount of water coming in.

I think the overheating was far more likely to be due to lack of oil pressure - the light was on for about 10 mins before it started complaining and I shut it down. The temperature only shot up in the last 30secs. or so. I've been told that this sounds like big end trouble.

Anyway, I'm still investigating...

Anybody got spare parts for this engine? - or even the whole engine?

[draycott]

Hi i will have a spare engine and possibly some parts after the 1st of april will keep you posted

[Deleted]

Sounds good! - where is the engine coming from? What have you replaced it with? Keep me informed

Cheers
Peter

[Deleted]

I've located a couple of possible 2nd hand engines. Anybody got an idea of how much they should be worth? Both have been recently run (removed, working last season)

[draycott]

The engines are out of a westerley and i am picking up the boat next wednesday from chichester chers kevin I am fitting a volvo 2003 into the westerley

[Deleted]

helo draycott - I sent you a personal message -did you get it?

can you tell me what condition this engine is in. Was it running / did it run before you decided to take it out? Did you just want something newer and more reliable?

[draycott]

hi peter bad news im afraid the volvo 2003 series engine that i was going to fit in my westery has a prblem so i willl be keeping the md 11 for now until i can aford to have the 2003 rebuilt sorry for any inconvince chers kevin

[azraq]

Mar 25, 2009 11:34:05 GMT @peter said:

I've located a couple of possible 2nd hand engines. Anybody got an idea of how much they should be worth? Both have been recently run (removed, working last season)

[azraq]

Mar 28, 2009 10:15:21 GMT @peter said:

helo draycott - I sent you a personal message -did you get it?

can you tell me what condition this engine is in. Was it running / did it run before you decided to take it out? Did you just want something newer and more reliable?

[azraq]

Mar 28, 2009 10:15:21 GMT @peter said:

helo draycott - I sent you a personal message -did you get it?

can you tell me what condition this engine is in. Was it running / did it run before you decided to take it out? Did you just want something newer and more reliable?

[azraq]

Hi. I found this old thread while searching for information about replacing my rather old and tired Volvo MD11c for a Volvo 2003. I noticed that someone else here was going to attempt this in a Centaur. Anybody know how complicated this is likely to be? Will the shaft & prop be compatible? Any adjustment required to the engine bed?