Hi, I have a boat engine question. I'm looking at a 30' Bayliner
Encounter. It's in need of one engine (350/5.7L GM) I may replace with
the same thing or go with diesels either a 6.2L or 6.5L which I
understand the 350/5.7L parts will fit. My question is do the original
engines rotate in opposite directions and if so how does one take care
of that? Thanks, Jim

--

On Nov 25, 10:30*am, "James" wrote:
Hi, I have a boat engine question. I'm looking at a 30' Bayliner
Encounter. It's in need of one engine (350/5.7L GM) I may replace with
the same thing or go with diesels either a 6.2L or 6.5L which I
understand the 350/5.7L parts will fit. My question is do the original
engines rotate in opposite directions and if so how does one take care
of that? Thanks, Jim

--

Jim, I wouldn't recommend changing over to 6.5 GM's in anything,
really. There's a lot more to the swap than simply bolting it to the
flywheel housing . That's the easy part. Then you have to do a lot of
modification to the fuel system and re-routing manifolds etc. Besides.
The 6.5 diesels are low on power and eventually high on maintenance.
In the pick up truck line, they were the lowest of the diesels. they
fell below the 7.3 IH in the Fords and way below the 5.9 Cummins in
the Dodge.

Honestly, the most economical and most satisfying thing to do would be
to get another 5.7 gas and bolt it in. You can get a NEW engine for
about $1500-$2000.00

Greg could have a point on reverse rotation props, but I'm not sure
about the gear ratios in the drives.

On Nov 25, 11:30*am, "James" wrote:
Hi, I have a boat engine question. I'm looking at a 30' Bayliner
Encounter. It's in need of one engine (350/5.7L GM) I may replace with
the same thing or go with diesels either a 6.2L or 6.5L which I
understand the 350/5.7L parts will fit. My question is do the original
engines rotate in opposite directions and if so how does one take care
of that? Thanks, Jim

--

Ask Bayliner, or go HERE, to get real help...

www.marineengine.com

On Sun, 25 Nov 2012 10:30:00 -0600, "James"
wrote:

Hi, I have a boat engine question. I'm looking at a 30' Bayliner
Encounter. It's in need of one engine (350/5.7L GM) I may replace with
the same thing or go with diesels either a 6.2L or 6.5L which I
understand the 350/5.7L parts will fit. My question is do the original
engines rotate in opposite directions and if so how does one take care
of that? Thanks, Jim

===

Buying an older boat with a blown engine is a very iffy proposition
from a value standpoint unless you can get the boat for next to
nothing and everything else is in great condition. It's a buyers
market for used boats and I'd be surprised if you can't find something
similar in good running condition. Having an engine swap done by a
professional mechanic usually ends up costing over $20K.

If you want a diesel powered boat you are better off to buy one
already equipped.

On Monday, November 26, 2012 9:13:53 AM UTC-5, Wayne. B wrote:
On Sun, 25 Nov 2012 10:30:00 -0600, "James" wrote: Hi, I have a boat engine question. I'm looking at a 30' Bayliner Encounter. It's in need of one engine (350/5.7L GM) I may replace with the same thing or go with diesels either a 6.2L or 6.5L which I understand the 350/5.7L parts will fit. My question is do the original engines rotate in opposite directions and if so how does one take care of that? Thanks, Jim === Buying an older boat with a blown engine is a very iffy proposition from a value standpoint unless you can get the boat for next to nothing and everything else is in great condition. It's a buyers market for used boats and I'd be surprised if you can't find something similar in good running condition. Having an engine swap done by a professional mechanic usually ends up costing over $20K. If you want a diesel powered boat you are better off to buy one already equipped.

They used to use reverse rotation engines but more recently they reverse it in the drive system. You don't say if it has outdrives or v drive. Or the age. Even if the engine is blown you may still be able to crank it and have some one watch to see which way it rotates. Failing that you can also trace the spark plug wires, the firing order will be different for a reverse rotation engine so just compare the two.

I agree with the ther poster about the desiels unless you have a good economical source for two of them. Those are not the best and you will have some issues with the accessories on the front. They will bolt up to your drive system though. A normal or reverse rotation rebuilt 5.7 marine engine is the cheapest way to go.

wrote:

On Mon, 26 Nov 2012 11:47:01 -0800 (PST), wrote:

Or the age.

If it is an Encounter, it is probably 20+ years old. Hence, my strong
recommendation to get a survey.

It's a 1978 with Volvo 280 legs and it is cheap. The rest of the boat
is in fair shape and I'm pretty handy since we have a 28'sailboat that
I maintain. I would have to spring for a trailer and haul it home but
we've got an acre of ground, two shops and lots of woodworking tools
and experience. I'm a retired welder and metalworker and mechanic. If I
go with another gas engine I can do it myself. I could also do most of
the diesel swap too. Then take it to the left coast for the final
work.The diesels that I'm looking at are low mileage HUMVEE surplus. Jim

--

On Mon, 26 Nov 2012 18:04:54 -0500, wrote:

No 35 year old Bayliner is a deal, trust me.

===

Absolutely right. Even with a trailer it should be close to free.

On Nov 26, 4:39*pm, "James" wrote:
wrote:
On Mon, 26 Nov 2012 11:47:01 -0800 (PST), wrote:

Or the age.

If it is an Encounter, it is probably 20+ years old. Hence, my strong
recommendation to get a survey.

It's a 1978 with Volvo 280 legs and it is cheap. The rest of the boat
is in fair shape and I'm pretty handy since we have a 28'sailboat that
I maintain. I would have to spring for a trailer and haul it home but
we've got an acre of ground, two shops and lots of woodworking tools
and experience. I'm a retired welder and metalworker and mechanic. If I
go with another gas engine I can do it myself. I could also do most of
the diesel swap too. Then take it to the left coast for the final
work.The diesels that I'm looking at are low mileage HUMVEE surplus. Jim

--

The Hummer engines were non turbo. whether 6.2 or 6.5. The diesel pump
solenoid will have to be changed to 12 volt seeing the hummers were
24v . Then you have glow plugs, timers and sensors to deal ith. Many
of the later ones (6.5's) were computer controlled engines with no
throttle cable, but an accelerator rheostat control and computerized
(instead of mechanical) fuel injection. This isn't counting that you
would have to get different exhaust manifolds because the 5.7's wont
fit.

James, you can do what you wish, but there are a lot of things to take
into consideration before making such a radical change over like you
are suggesting.