www.iFourWinns.com

As some of you know I'm in the process of building an engine for my 95 horizon 180. My question is how would I find out if this was a reverse rotation engine to begin with?

My first thought would be engine firing order, and if I'm correct a std rotation would have the same firing order as a normal car/truck.

If this is a reverse rotation boat can I change it to std rotation by using a specific prop? would the outdrive spinning the wrong way be too weak or are the gears the same size and strength forward and reverse?

Thanks in advance you guys have been great.

It would be extremely unlikely that someone would have installed a rev rot engine and drive.

_________________
88 Four Winns 200 Horizon
4.3 OMC Cobra-4bbl
2002 Walker Bay 10/2012 Suzuki 2.5
2008 Walker Bay 8

1998 Jeep Grand Cherokee 4.0/Selectrac
2007 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II

I agree with LouC --- However if you really wanted to confirm -- get a manual and look at the distributor rotation -- it should be noted in most manuals. then pull distributor cap -- have someone crank engine and you look. the distributor rotation is related to the crank rotation-- if one is backward the other will be also.{at your boat age I am assuming the engine has a distributor)

_________________
DaleG -- West Palm Beach FL
2003 240Horizon -- 5.7Gi -Duoprop

I don't think this boat was modified, I was wondering if they came from the factory that way?
or do they only use reverse rotation in twin engine setups?

No can do on the cranking engine Dale, I'm looking at a bare engine block right now(engine completely town down). Good point about the manual, I usually get one for every thing I own, but I have yet to get one for thing.

Is it safe to say all single engine four Winns came with std rotation?

99.99% safe to say that.

_________________

"Knot Easy" 2000 Horizon 240 Volvo 5.7GS /SX
tow: 2017 Honda PILOT EXL-AWD
prev. boats:
'87 Chaparral 198CXL 4.3 OMC Cobra
'69 Jetstar 16ft Ski Boat, 115hp Yamaha
'68 Aluminum Jon Boat, 3hp Sears
'64 Water Wings

Rev rotation engines were often used in twin inboard applications, I guess it was cheaper than trying to reverse the transmission. If you want to know for sure:
remove the drive
have someone turn the input shaft clockwise
shift the drive into fwd
look at the prop shaft, it should be turning clockwise from the rear of the drive (right hand prop)
That would prove that its a standard rotation engine, as unlikely as it is that someone would have changed this.

_________________
88 Four Winns 200 Horizon
4.3 OMC Cobra-4bbl
2002 Walker Bay 10/2012 Suzuki 2.5
2008 Walker Bay 8

1998 Jeep Grand Cherokee 4.0/Selectrac
2007 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II

Don't the RR engines also have RR props? If so, that would be the telltale too.