TAMD41B. Any opinions please?

[colhel]

Went to view a boat earlier with a TAMD41B 6 cylinder 200hp engine. It hadn't been ran "for a while" but I was impressed with the ease of starting and the smoothness of the running. There was some oil in the bilge and an oily/diesely film on the green paintwork , nothing much could probably clean off easilly and certainly no worse than on my old MD11C sailboat engine...
I'd like some opinions please about these engines, the boat is semi displacement, about 3.5 tonnes and according to the book will cruise around 15 knots and top out at 22. The engine meter says 1500 hours ish.

 

[Colin K]

Went to view a boat earlier with a TAMD41B 6 cylinder 200hp engine. It hadn't been ran "for a while" but I was impressed with the ease of starting and the smoothness of the running. There was some oil in the bilge and an oily/diesely film on the green paintwork , nothing much could probably clean off easilly and certainly no worse than on my old MD11C sailboat engine...
I'd like some opinions please about these engines, the boat is semi displacement, about 3.5 tonnes and according to the book will cruise around 15 knots and top out at 22. The engine meter says 1500 hours ish.

Hello,
I have a Fairline Corniche with two of these so same engine but very different boat. Engines are fantastic and easy to work on. If you are not able to check it over yourself then Volvo paul is the one to employ to check over the engine.

All the best. Col.

 

[volvopaul]

Went to view a boat earlier with a TAMD41B 6 cylinder 200hp engine. It hadn't been ran "for a while" but I was impressed with the ease of starting and the smoothness of the running. There was some oil in the bilge and an oily/diesely film on the green paintwork , nothing much could probably clean off easilly and certainly no worse than on my old MD11C sailboat engine...
I'd like some opinions please about these engines, the boat is semi displacement, about 3.5 tonnes and according to the book will cruise around 15 knots and top out at 22. The engine meter says 1500 hours ish.

Moving over to the dark side eh?

I can help you with what you need to know.

You can email me any info or pics , my emails on my profile .

 

[colhel]

Thanks Paul. Early days can I'd appreciate any advice.

 

[PowerYachtBlog]

Bullet proof engine which can last thousands of hours, if correctly maintained.

 

[Montemar]

Excellent engines, make sure the anode in the heat exchanger is still intact.

 

[Jonmendez]

They don’t all have anodes in the heat exchanger. Early ones and A,s did. Mine are later B,s and they don’t by design.

 

[oldgit]

They don’t all have anodes in the heat exchanger. Early ones and A,s did. Mine are later B,s and they don’t by design.

my "B"s have just had their pencil anodes replaced ??? .
......had pair of the earlier "A" engines as well in previous boat.

As a observation,all the easy to get to/actually visible bits on side of the engine will probably have received attention over the years, it will be the bits hidden way and a pig to get to or even see that usually have been neglected.
On my present boat, when checking the pencil anodes the one on the starboard engine had obviously been changed regularly,easy to remove brass cap and replace a partially eroded anode.
The brass nut on the other engine hiding under deck, simply crumbled away under a socket , the anode long gone years ago.
New anode and brass cap about £20.00 in total.

something else worth checking out,the engine is probably connected to a MS3 or MS4 gearbox, thousands of them out there working but problematic getting them repaired.
nice to know if yours is healthy before purchase, believe a nice noisy "clunk" is required on engaging forward or reverse.
Worth mention.

 

[colhel]

Thanks All. I'm going to have a more thorough look this weekend. The boat's out of the water so can't try the gearbox until the sea trial. Anything I can examine whilst the boat is on the hard?

 

[oldgit]

Check gearbox oil. Preferably up to level and bright clear shiney and clean.

Good time to check stern gear, ie prop gives nice ring when (gently)bashed with spanner, no serious lumps or chunks out of prop blades. No dull thud on blades,or obvious pinkness.
Should be able to turn prop shaft smoothly by hand, check for wear in cutlass bearing,try to wiggle shaft about.
Give rudder stock a good shake to check for undue movement and wear .
Now is also time to check hull for impact damage, looking for large areas of gel coat cracks indicating a serious thump which may have caused more serious (unrepaired or ignored ) internal damage.
Every boat afloat will have bit of stress cracking and really of little consequence.
....and of course the dreaded osmosis, if you know what you are looking for of course
Most older boats could well have bottom that could look very rough and pitted with years of coats of old A/F , should not be confused with the real thing.

 

[Montemar]

Service history invoices etc