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Old 25 March 2004, 18:47   #11
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there's a simple solution to all of this. It's called the Bravo 2
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Old 26 March 2004, 04:27   #12
DGR
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What's the difference in price between Bravo 1,2 and 3? Roughly?
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Old 26 March 2004, 05:58   #13
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Quote:
Originally posted by jwalker
Yep, but there's also the cracked block issue.
Yes but that was just in 1 boat or am i wrong again?
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Old 26 March 2004, 07:11   #14
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Quote:
Originally posted by Redbay Rover
there's a simple solution to all of this. It's called the Bravo 2
But you'll loose the benefit of contra-rotating props.
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Old 26 March 2004, 10:10   #15
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Countered (slightly) by the fact that the bravo 2 can swing a larger prop. I'd rather have better reliabilty than fancy props.
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Old 26 March 2004, 12:56   #16
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Quote:
Originally posted by DGR
What's the difference in price between Bravo 1,2 and 3? Roughly?
To a boat builder, hardly anything, just a few hundred pounds.

As for Bravo's being "cheap american crap", they may be crap, they're certainly american but if you think they're cheap then your in for a big suprise.

As for the reliability of a "2" compared to a "3". I wouldn't be too sure about that. The part that tends to fail in a Bravo tends to be the top end, hence the reccommendation of Dave Crawford for fitting a shower, but guess what, all the Bravo X's use the same top end, both casing, gears and all are identical, all having the same part numbers.

Now B1X's are imho bulletproof, but those big props on a 2, or pair on a 3 are possibly the cause of the problems. Again IMHO..

Oh, and I know of at least 7 broken blocks......
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Old 26 March 2004, 22:24   #17
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seafariskye: I think you may be correct. Last year my work tried to buy two Yanmars for a big rib doing diving charter and sight seeing tours. The yanmar agent wouldnt sell them with a warranty for a commercial application - even a fairly light duty rating like this one. Kind of put me off buying them.
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Old 30 March 2004, 06:10   #18
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Quote:
Oh, and I know of at least 7 broken blocks......
Duff legs is one thing, but brokens blocks is pretty fundamental.
I have always been led to believe that Yanmar engines were good and reliable. I also thought that the yamaha diesel engine was the same as yanmar, but with yanmars modifications. Also that this engine was sourced from the toyota land cruiser.
Are yanmar doing something to their blocks that weakens them?
There are a few yanmar powered ribs on the secondhand market, if I thought the engine was possibly going to need replacing as well as a very likely drive leg replacement, I would not want to touch it with a barge pole.
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Old 30 March 2004, 06:32   #19
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Yes, the Yanmar and Yamaha are both Toyota Landcruiser motors, and both have suffered breakages in the past. I'm not familiar with the way Yamaha mount there motors, but Yanmar for some reason don't use all the available bolt holes for the mounts.

There are several rib racers who are using a "custom" mount from a rib builder in Southampton, and that seems to have cured the problem.
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Old 01 April 2004, 15:35   #20
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At last i have finally logged back on under a different name!!.


Right then, Yanmars are very very good, (but i would say that!!)
As far as cheap ones go, im not sure as i dont deal with the sales side of things but i will endeavour to find out tomorrow.

I have seen hundreds of yanmars doing 10k+ hours. Almost every MoD diesel powered rib fitted with Yanmars. All new Pacific 22s, and 24s have them. All combat support boats have twin yanmars. All the new Small landing craft have them. The Pacific 22 MK2 has had them for a long time now with no major problems, and they get abused more than most boats!.
Lots of them use Hamilton jets rather than props, so they dont go through so many props and gearboxes!.
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