Broken Yanmars

[Dirk Diggler]

I've been reliably informed that a number (rather a lot infact) of Yanmars have broken this year. The majority of them in Ribs.

It seems that they have a tendency to rip the port ( I think ) engine mount off the block. The importer of the engines say that if you have been "jumping waves" you will have invalidated the warranty, and so you are faced with a huge bill for a replacement engine.

Does anyone have any experience or knowledge of this.

[Garygee]

Think a e-mail to Barrus is on its way as I have a Yanmar on order.

I think if they ar likley to break "jumping waves" I dont see this as any different as pusing into a steep sea when like it or not your going to have a few hard landings.

I will advise the outcome of the e-mail

Regards Gary

[Dirk Diggler]

You ought to ask about the 10 metre scorpion that broke one, ripped the side out of the block and filled the bilge with oil, ALLEGEDLY.

[MarkWildey]

An answer, although not a 100% answer, is to fit an engine brace and/or fit heavy-duty engine mounts.

There are a number of people who make these and I would recommend anyone thinking of fitting any inboard diesel to spend the extra now and fit a brace and possibly upgraded mounts.

On the other hand if a 10m Scorpion broke a mount then it was likely that a brace was fitted anyway !

Regards

Mark

[Mike Garside]

Originally posted by MarkWildey
An answer, although not a 100% answer, is to fit an engine brace and/or fit heavy-duty engine mounts.

You can see those bits in this pic of the Yanmar 300 retro fitted to my Ribtec. The brace and heavy duty mounts are in place. It remains to be seen whether or not both are tough enough...

[crazyhorse]

I think I will fit these to My Kad or get something fabricated/sorted out.

I dont want to find the engine mounts fail at a later date

[Brian]

I believe that there are only 4 Twin engined, 10m Scorpions. Mr. Byrnes, Mr. Deacons, Mr. Stricklands and a non-Yanmar engined boat.
If any of these had broken an engine mount I would be surprised. If none of them have, will you withdraw your allegation-for that is what it is?

[crazyhorse]

I am keen on freedom of speech,

Especially when it comes down to people wanting imformation about what boat/engines that are good or bad .

I see no reason why that Question can not be Asked.The Problem is I already know the answer. I see it as the same as asking a turkey what it wants to eat for Christmas,it ain going to say Turkey,now is it?

We will see,There are now going to be alternatives to Hard nose Leisure ribs boats and it will be a interesting time,no more you can have any engine as long as its Yanmars?.Gone are the days of the client only getting a small choice.

Its a Free For all and its comeing,Yipee

[Dirk Diggler]

Bad news I'm afraid, it's now fact. I've probed a bit more and have further imformation on the Yanmar problem, so sit back, read, digest and be afraid, very very afraid.

The 10 metre scorpion that broke a motor was indeed Mr Chris Stricklands, he was using the same brace as the one on Mike G's boat.

Prior to that one, a high performance rib, i'm told that is owned by the son of the lady who runs Merlin Boat Park also suffered the same problem. He was also using a Barrus supplied brace.

The Barrus brace was designed to replace the one normally used by Scorpion. It seems it is not up to the job. What a wonderful thing the internet is.

These two ribs now use a brace designed by the builder of the High Perf boat mentioned above. They are not cheap but quality does cost.

It now appears that Yanmar have now redesigned theirs, ( mk 3 version) and this will be standard fitment on all new motors.

Regards,

That useless no nothing fool

Dirk

PS, how about a little praise for using the forum as it was intended, to pass on useful imformation.

[crazyhorse]

Well done Dirk.
now that was good hot off the press news.

Thats what I want to here,Well done old boy,pat on the back and all that.