19' wellcraft with evinrude 115 have hardtime plane out

[nguyen80]

my boat have a hard time plane out unless someone stand at the bow for a minute or two. just recently change fuel/water separator, fuel filter, rebuild carbs, new spark plugs, new power pack. the primer bulb stay firm all the time, i m so confuse.

 

[wilde1j]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

What is RPM at wide open throttle (WOT)?

 

[nguyen80]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

i think it was between 2000-2500 rpm , but it got to 4000-4500 after i got it to plane out. I was wonder timing have anything to do with it.

 

[wilde1j]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

Sure, the motor should be turning 5800 @ WOT after planing. Run it again and get it to plane. Then adjust trim for maximum RPM and note the value. Figure about 150 to 200 RPM increase for each inch of pitch reduction, and select a select a new propeller accordingly.

You motor will perform way better and last much longer as well.

 

[nguyen80]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

i will run it again next time out , how do you adjust trim and what size impeller is the right one for my engine ? it's a evinrude E115TSLECM 98. thanks

 

[nguyen80]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

my boat has hydraulic trim/tilt does that make a differrent? because i didn't have this problem before.

 

[ezeke]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

Start by going to a lower pitch propeller than you have now. If you have a 19 pitch, try a 15 pitch.

There's a propeller forum and also a Wellcraft forum on this site which will be helpful to you. http://forums.iboats.com/Wellcraft_Boats

 

[blimp]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

when you say "because i didn't have this problem before" did the boat used to get on plane quicker? Do you remember what RPMs the engine Used to get up to? You may be dropping a cyl, I would run a compression test and spark check before investing in another prop.

 

[bob johnson]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

my boat has hydraulic trim/tilt does that make a differrent? because i didn't have this problem before.

bluntly but truthfully, you know very little about this boat you have...

no not the end of the world... but even for us to help you..which most really want to do, you should make an effort to help yourself....

which makes it easier for us to help you...


you really should learn some basics of your boat-motor combo..

do you have a boat manual, or a motor manual??

in the manual i have for my 1995 115. there are 20 pages in the back on learning about your boat and the motor and the description of the terminology used.

there are some pages up from about what to do before you use your motor...

easy quick reading, that gives you lots of insights about whats going on...

I only say this because I would think from your answer about the hydraulic tilt and trim says you really are not sure.......

you could easily buy a boat set up perfect , hop in and enjoy years of trouble free boating with out doing anythign extra

then the next boat has issues and you are at a total loss as to why this is happening!!!!!

and boats -expecially boat motors, can have all kinds of issues!!

good luck

bob

 

[bob johnson]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

Sure, the motor should be turning 5800 @ WOT after planing. Run it again and get it to plane. Then adjust trim for maximum RPM and note the value. Figure about 150 to 200 RPM increase for each inch of pitch reduction, and select a select a new propeller accordingly.

You motor will perform way better and last much longer as well.

do the crossflows run that high and rpm???

I know the 60 degree loopers are generally run a little higher than the books WOT range...but I hadnt heard that the crossflows would run that rpm as well...


bob

 

[nguyen80]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

when you say "because i didn't have this problem before" did the boat used to get on plane quicker? Do you remember what RPMs the engine Used to get up to? You may be dropping a cyl, I would run a compression test and spark check before investing in another prop.

the boat used to get on plane quicker, and i already did a compression test. I bouht a spark gap tester but didn't know how to use it yet. what do i do if i have a drop cyl?
cyl 1 85 psi
cyl 2 100 psi
cyl 3 75 psi
cyl 4 95 psi

 

[blimp]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

That 75psi cyl is worrysome, they should be within ~10% of each other. If you determine one cyl is not sparking correctly, there are a number of things you can do to determine what part is faulty, such as switching coils to different cyl or testing the powerpack with a special multimeter.

Let us know if you have spark on all cyl.

 

[ezeke]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

do the crossflows run that high and rpm???

I know the 60 degree loopers are generally run a little higher than the books WOT range...but I hadnt heard that the crossflows would run that rpm as well...

bob

There is no book "WOT" range. There is a a book "full throttle range" in which the 115 crossflow specification is 4500 to 5500 RPM.

We recommend that these engines be propped such that the engine can reach a maximum of 5800 RPM at WOT with the average load so that the engine will not be lugged under normal operating conditions.

Many of these 115 crossflow engines came stock with rev-limiting powerpacks set at 5800 RPM. Most of the loopers are set at 6200 or 6700 RPM.

 

[wilde1j]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

do the crossflows run that high and rpm???

I know the 60 degree loopers are generally run a little higher than the books WOT range...but I hadnt heard that the crossflows would run that rpm as well...


bob

You bet.

 

[Chinewalker]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

Your compression readings aren't very good. A 25 psi variance between high and low may account for your lack of giddyup. Motor sounds like it is getting tired. Might respond to a de-carbon treatment if it is coking up. Unless you can address the compression issue, propping and set-up won't help...

 

[bob johnson]

Re: 19' wellcraft with evinrude 115 have hardtime plane out

i will run it again next time out , how do you adjust trim and what size impeller is the right one for my engine ? it's a evinrude E115TSLECM 98. thanks

well one thing at a time is best...

go get some BPR decarb fluid...

I wouldnt suggest the seafoam yet for you...there is a fluid you can add to the gas and over a few tanks will help remove carbon deposits( or is supposed to anyway)

then take the boat out with a light load maybe one other person..

when you launch the boat you raise and lower the angle of the motor with a buttom , probably on your throttle control... right?


you probably lower it all the way down till it doesnt go any more ... right?

thats fine....take the boat out preferably on a calm day and get it up on plane..which ever way you can....

make a note of your speed( gps unit or speedomiter is fine) and make a note of your RPMS...


now while going as fast as the boat will go, touch that button on your throttle control and RAISE the motor..


lets say hold it for 2 seconds..and let go and see what the speed and WOT are now..

then hold for another 2 seconds and let go..and monitor the rpms and speed.

if the motor is ACTUALLY moving...which it should be...you SHOULD notice more speed.... continue that until the speed and rpms drop back down.

remember the number of 2 second sessions you did..

then come back and let us know...

what happens is the boat wants the motor all the way down to get up on plane the fastest....then once up on plane the boat will actually go faster if your trim the motor higher....

you ahve the button for trim and tilt on your control ...right?

now depending onthe rpm and speed numbers....we might be able to offer a suggestion about the best choice for a prop.. or at least a place to start...


watch your temperature while doing this ...

do you have a water pressure guage????

if not , next trip into the mechanic have him add one....

it is good and will help you make sure you dont over heat your motor..

g ood luck

bob