Yanmar 315

Keith Poe · Post by **Keith Poe** » Mar 5th, '18, 17:15

So I have these 2 motors gears shafts props rudders looks like he was taking salt water in the intake some rust from the valve cover pan.
I don't have time to mess with this stuff any suggestions

moguls2go · Post by **moguls2go** » Mar 5th, '18, 17:40

Hi Keith! Not following... are you hoping to sell these motors?

Keith Poe · Post by **Keith Poe** » Mar 5th, '18, 19:32

I'm open to anything they're just sitting here and that's no good

Keith Poe · Post by **Keith Poe** » Mar 5th, '18, 20:03

Video of motors
https://www.dropbox.com/s/fe8zcva4u3on2 ... 1.mp4?dl=0

Tony Meola · Post by **Tony Meola** » Mar 5th, '18, 22:15

Keith

If they can be rebuilt and they did not cost you a fortune, I would put them up for sale. Post them here on and on other boards. I would say ebay but they take a good chunk out of the sale.

Keith Poe · Post by **Keith Poe** » Mar 5th, '18, 22:24

Thank you

Now the 64000 question how much should i ask for them ?

Carl · Post by **Carl** » Mar 6th, '18, 08:15

If you wanted to double your cruise speed...and ears, you could put in your boat.

Keith Poe · Post by **Keith Poe** » Mar 6th, '18, 10:45

Nice

Fuel the same ?

Will they fit ?

Tony Meola · Post by **Tony Meola** » Mar 6th, '18, 22:35

Keith

The 315's will fit just fine. Figure on a cruise between 26 and 28 Knots with a top end around 33 knots. This all depends on how much the boat weighs and if you have a tower or not.

Fuel Burn would be about the same as the cummins may be a tad better on fuel.

The only issue would be that everything on a Yanmar is more expensive than Cummins. Filters, parts etc.

Otherwise Great engines.

I don't remember what size Cummins you have, but if they are the 250 or 270's the Turbo is fresh water cooled and on the Yanmars and larger Cummins they are Sea Water cooled. So more upkeep. Turbos need to be cleaned every couple of years.

Keith Poe · Post by **Keith Poe** » Mar 6th, '18, 23:59

Thank you Tony

250

Carl · Post by **Carl** » Mar 7th, '18, 10:02

Keith...I must have missed a few posts along the way...I thought you were running Detroit 4 bangers.

315's would be a heck of an upgrade to those.
Personally I'd stick with 250 Cummins over 315 Yanmars...but thats just me. I like simplicity.

Charlie J · Post by **Charlie J** » Mar 7th, '18, 13:11

the only draw back with the 315s is the timing belt need to be changed
I think every 1,000 hrs, its not mechanical
other then that I know a lot of people running them and are very pleased

Keith Poe · Post by **Keith Poe** » Mar 7th, '18, 14:58

Awesome information gentlemen thank you very much so far I'm very happy with the 4BT

bertram31.com

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