1995 FourWinns cannot do more then a couple miles an hour

[synapes]

Hello Everyone,

I need some help here, I have a 1995 FourWinns 200 Horizon with 74 hours on it. First time getting it out, the engine is a OMC Cobra 5.0FL. Starts right up and when I left the launch area engine was great, the motor will rev up to 3000 RPM's. max? I thought this was low. My 1984 Wellcraft would go up to 4500RPM's at full open. I checked the prop and that looks fine, I have attached a picture of it, when I have it in gear I can spin the prop a little bit. I have been reading about ( engine coupler ) I see this is not cheap to buy. is there any other test I can do before I know for sure if it is the engine coupler.
What is needed to change this part out if need be, Can this be done by someone who has a little knowledge or is this really better for someone who does this kind of thing all the time.

If this is better for a shop to do what price am I looking at.


I know I am asking allot of questions and I don't know if you need anything else from me but that's why I am here.

I think I found the right engine coupler for my boat. P/N 18-21753 Replaces 3853862 fits 5.0L , & 5.8L 1989 - 1996

Any help would be great.

 

[littlebookworm]

Re: 1995 FourWinns cannot do more then a couple miles an hour

If you have the drive in neutral, can you rev the engine above 3000? If so, your problem is probably in your drive, not your engine. If it won't rev, something is wrong with your engine - fuel or spark. Try this: With the engine OFF, put the boat in gear. Try to turn the prop by hand. It should turn freely in one direction and lock up in the other. If it turns in both directions, the hub on your prop is shot. You need to replace the prop or have yours rebuilt. Either way, not a big job. If the prop properly locks up, then something is binding inside the drive, You'll need a marine tech to check it out. To answer your questions on the engine hub: It is not a clutch. It is a rubber and steel connector between the engine and the outdrive. To replace it requires removing the outdrive, pulling the engine, removing the bell housing and the hub, replacing the hub, and reassembleing everything. Before the outdrive goes back, the engine's alignment with the boat must be checked and possibly adjusted. Can an average mechanic do it? Yes. Can someone without any knowledge or experience with engines or boats? Probably not. Hope this helps somewhat. Good luck. Hy

 

[synapes]

Re: 1995 FourWinns cannot do more then a couple miles an hour

The prop spins freely in neutral, When in forward or reverse one way spins freely while the other way stops. I am changing the plugs and so on, once i have changed everything out I will try try the RPM again and see if I get higher then 3000RPM. I looked at the back of the prop and everything looks good, does not look like it spun, Also I cannot spin when in gear either. I did go to the marina and ask some questions about this, they said it sounds like that's the problem but will need to check it out to make sure, that might be my last straw at getting this fixed. I could not believe how much that part cost. I see I can get it for a little over $300.00. in Canada its $540.00. I was going to buy in it the US and ship it over but they said you can do that but they will not be able to guarantee the warranty on the part for failure. So I might be stuck paying that amount.

 

[180shabah]

Re: 1995 FourWinns cannot do more then a couple miles an hour

Your problem is NOT the prop hub or the engine coupler. You would have the opposite problem - lots of revs with no speed.

If you have the drive in neutral, can you rev the engine above 3000? If so, your problem is probably in your drive, not your engine. If it won't rev, something is wrong with your engine - fuel or spark.

WHAT!!! reving an engine to 3k in neutral is both diagnosticaly irrelevent and destructive DO NOT do it.

Click here for 15 possible causes for not reaching proper WOT

 

[bds85466]

Re: 1995 FourWinns cannot do more then a couple miles an hour

Try this: With the engine OFF, put the boat in gear. Try to turn the prop by hand. It should turn freely in one direction and lock up in the other. If it turns in both directions, the hub on your prop is shot.

well....

if your prob turns in both directions after you've put the boat into gear, it could be anything between your shift cable and the shift levers and the clutch as well...

 

[synapes]

Re: 1995 FourWinns cannot do more then a couple miles an hour

At this point I am doing a tune up as well as change the filter on the carb. gas tank was cleaned out before I put everything back in so I know that is good. prop is fine, and the prop does move free when in neutral, when in forward gear it will move free one way and stop the other way and this goes for reverse as well. one I have finished installing the new plugs and everything else I will test in water again. I have to say, these plugs are a real pain in the but, I don't understand why they would not give you enough room to be able to use a spark plug socket, each one has to be done with a wrench. I learned the hard way and I snapped one of the new plugs, had to go and get another one.

But I have to say with only 73 hours on this boat, could I really have a problem with the engine coupler? but the other thing is if I was able to get up to 3K in RPM that should get me out of the hole even if the carb has a problem?


Thanks for everyone helping out,

Steve

 

[synapes]

Re: 1995 FourWinns cannot do more then a couple miles an hour

Ok, I changed the plugs/distributor cap/rotor/Oil and so on. When I looked at the card to change the filter I noticed it was a Holly carb. did they come with the OMC Cobra engines? Also from the fuel pump there is a plastic hose to goes to the carb but its not connected at the carb? this was like this when i purchased the boat so I don't know if they changed the carb or if the hose is to be connected?

Any help would be great.

Thanks,

Steve

 

[Sparkinator]

Re: 1995 FourWinns cannot do more then a couple miles an hour

You've got the same engine and drive that I've got. It is a Ford 302 with a Holley 2 barrel carb (if still factory set up.)

You have an OMC in name only. It is basically a Volvo penta SX drive. You need to download the manuals for your engine/drive. Here is a link to a thread where Don gave them to me.

LINK

If you post your serial numbers, Don can verify that it is the same drive, but mine is a 95 OMC cobra 5.0FL, on a 95 Four Winns Horizon.

 

[Sparkinator]

Re: 1995 FourWinns cannot do more then a couple miles an hour

Ok, I changed the plugs/distributor cap/rotor/Oil and so on. When I looked at the card to change the filter I noticed it was a Holly carb. did they come with the OMC Cobra engines? Also from the fuel pump there is a plastic hose to goes to the carb but its not connected at the carb? this was like this when i purchased the boat so I don't know if they changed the carb or if the hose is to be connected?

Any help would be great.

Thanks,

Steve

Download the manual and it explains that plastic hose. It should be hooked up to the carb and should be empty. It allows fuel a path back to the tank in case your fuel pump malfunctions (that's my understanding)

 

[synapes]

Re: 1995 FourWinns cannot do more then a couple miles an hour

Hello Everyone,

Ok I just got the boat back from and marina, they changed the engine coupling and now the boat is working again. I have done a complete tune up on the boat as well. They said they could only get it up to 30-35MPH? which this pisses me off, you would think they would check to see if there is something wrong? I just put it all back together to take it out, I will bring my GPS to see
if the speedometer is correct. Also they were saying the prop could be wrong?
they said it was a no name prop? So I looked it up and its a Stiletto. number on the prop is 40319 V/01419.

Again the boat is a 1995 FourWinns 200 Horison OMC Cobra 5.0LT


Thanks to everyone that has helped.

Steve

 

[Sparkinator]

Re: 1995 FourWinns cannot do more then a couple miles an hour

I'd verify speed and rpm. What is your tach showing at WOT? I bought a plain looking rebuilt prop off ebay that was 19 alum, and it didn't have enough cup on the blades (as much as my good one anyway). I couldn't get much speed out of it, and the engine kept wanting to over-rev and couldn't get much speed. Not sure if it was all a cup problem or if the hub was slipping. I could only get about 35 at half throttle and my rpms were at 4600.

Have you weighed the boat? If it has a lot of waterlogged styro, there may not be anything wrong with the prop/drive/engine. Maybe just can't push it that fast.

Just for reference, my GOOD 19 pitch aluminum (which sounds like you have a 19 pitch) will pull 4800 rpm and do 46-47 speedo. I have to keep an eye on my rpms with that prop, cause 4600 should be max for the engine. My 21 pitch stainless will do 45-4600 rpm and do 50. These speeds are speedo, not GPS, but close enough for me.

 

[synapes]

HELP!!!! 1995 FourWinns Need a distributor or Electronics !!!!

HELP!!!! 1995 FourWinns Need a distributor or Electronics !!!!

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