1989 Evinrude 110hp wont plane out.

[jjasonlfine99]

I just bought a 89 tracker 1800fs with a 110hp evinrude. I have replaced all fuel lines and had the carbs cleaned. The prop has been restored and i still am having trouble. When i hammer it it comes up like it wants to palne but when it hit 3500 rpms it feels like it is cutting a hole in the water. It wont plane or gain any speed. I was told this was because of a spun pro but that is not the problem, i just fixed it. When it hits 3500rpms the the tack jumps to 5800 rmp and i don't go any faster most of the time is slow down. Please help!

 

[Dennisanoka]

Re: 1989 Evinrude 110hp wont plane out.

I still wonder about your prop. How did you fix it? Or could you try a different on? Otherwise could the motor be trimmed or mounted too high so the prop beginns to suck air when it beginns to plane out.

 

[jjasonlfine99]

Re: 1989 Evinrude 110hp wont plane out.

I took it to Midwest Propeller and had a new hub put in it. The power trim is out so i have to use the pin system it has on it. I tried every setting with the same results.

 

[jjasonlfine99]

Re: 1989 Evinrude 110hp wont plane out.

I have a 17 pitch Stainless prop on it and i have been told its to small and that i should go to a 20 pitch raker.

 

[Silvertip]

Re: 1989 Evinrude 110hp wont plane out.

17P sounds way too little pitch. What diameter is that prop as that may be a factor as well. You should check how high the engine is mounted on the transom (AV plate flush to just an inch or so above the bottom of the boat). Too high you lose bite and the prop "blows out". If you have the manual trim pin set so the engine is trimmed out too far that can also cause the problem. Finally, an incorrect prop for that engine may have simply spun the prop hub again. Mark the hub and put another mark on the blade area in line with the first mark. Run the engine until the problem occurs. If the two marks are not lined up you spun the hub again. If the marks are still lined up the prop is ok but may still be wrong your setup.

 

[Dennisanoka]

Re: 1989 Evinrude 110hp wont plane out.

jjasonlfine99,

I have a 1989 90hp I have 2 props one is a 13x17 and there other is a 13x19 both work well. Trimmed out they both will run 5500 rpm. This is on a 16' Lund Renegade. I suppose it weighs about 750lbs. w/o gear and 1100lbs. with gear and gas. That may not apply to your set up but the engines are very similiar. Silvertip had good advice, I would also be curious as to how the cavitation plate coorespondes to your boat's hull. It should be roughly even with the bottom of your hull, give or take an inch or so. In your case if it's above the bottom at all I would consider that a real poosible place to start.

 

[jjasonlfine99]

Re: 1989 Evinrude 110hp wont plane out.

I went to midwest propellar today and got a 20 pitch raker they did not have a 19 pitch. This solved my problem. Its slugish out of the hole but she gets right up and planes out. Thanks for everything guys! I thought i had lower unit problems...this was a much cheaper fix. Whats weird about it is the 17 pitch that was on it worked fine the last couple of years but after i bought it from my buddy i tuned her up and fixed the leaking fuel pump i guess the torque was to much.

 

[Dennisanoka]

Re: 1989 Evinrude 110hp wont plane out.

Just make sure you're not over propped so that the engine lugs. You should get 5000-5500 at WOT(check your manual). If you have too much prop you can get carbon build up.

 

[jjasonlfine99]

Re: 1989 Evinrude 110hp wont plane out.

It runs 5600 rmp when shes full throttle. Im going to attempt to trade for a 19 pitch for hole shot purposes.

 

[jjasonlfine99]

Re: 1989 Evinrude 110hp wont plane out.

I found out raker only makes even increments so its either 18" or 20", with it turning 5600 rpm at full throttle if i went with a 18" i would assume the rpms would go up which would not be a good thing.

 

[Dennisanoka]

Re: 1989 Evinrude 110hp wont plane out.

I believe my 89 90hp and yours have the same spec. for RPM which is 4500-5500. I was getting 5200 with my 13x19 Solas until just this week when I decided to raise it on the transom. I raised it 2 holes, about 1.5" which is 3/4of an inch above the hull and now wot is 5500-5600 as well. This is just what I was hoping for. At 5200 RPM I got 43 mph via gps so I estimate about 45 now, but my hole shot is better and the bow raise is less. Well I got way off your question but I would not suggest exceeding 5500 too often unless you just want a new 4 stroke and you need a good excuse.

 

[Dennisanoka]

Re: 1989 Evinrude 110hp wont plane out.

BTW, the 18 would bring it up another 200 RPM approx..