Testing this weekend

[Dienewk]

Re: Testing this weekend

That will not help, and may make the problem worse, because the exhaust housing fills with water to the point of the relief holes and will fill more with extensions, creating even greater back pressure.

thanks Ezeke

straight answer was what i wanted

 

[Dienewk]

Re: Testing this weekend

also if i was to change the height of the motor on the transom then take it on our weekend away would this spoil our weekend?

what i mean would the changes of moving the motor up 1-2 inchs spoil the performance so much i could tow the kids about?

thanks

tim

 

[Willyclay]

Re: Testing this weekend

Tim, a stern view picture of the boat on the trailer with the motor trimmed down until the anti-ventilation plate is as close to parallel with the bottom of the hull as possible would be helpful. For your consideration when raising the motor, the AVP should ride above the water at planning speeds BUT not cause ventilation particularly in turns. Most people start at about one inch above the bottom but adjustments up or down may be needed to optimize the performance. Since you are trying to solve a different problem maybe you can live with one of the negative effects. Bill

 

[Dienewk]

Re: Testing this weekend

here are a few pictures of the motor and the back of the boat also the bolt holes and a few holiday snaps with my shirt off(joking)

so should i adjust the height of the motor on the transom then go for our weeekend away and see what the diffrence is?

thanks

tim

http://s461.photobucket.com/albums/qq332/dienewk/motor position/

 

[ezmobee]

Re: Testing this weekend

That set up looks pretty good from where I'm sittin'. Nice rare TnT unit you got there. Don't ever let that hit the dumpster, it's worth $400 by itself.

 

[Dienewk]

Re: Testing this weekend

That set up looks pretty good from where I'm sittin'. Nice rare TnT unit you got there. Don't ever let that hit the dumpster, it's worth $400 by itself.

i have 2 of those


so you dont think raising it will help get the exhaust relief ports out of the water?

any other ideas?

 

[ezmobee]

Re: Testing this weekend

I think your boat is sitting way too low in the water (judging by the water line). Saturated floatation foam perhaps?

 

[BigB9000]

Re: Testing this weekend

Sooooooooooooo your boat is almost sinking when not underway? Am I seeing this right?


Couldn't you just trim the engine up a tad to get the holes above the water line?

 

[lightwood38]

Re: Testing this weekend

Dienewk where are you located?

 

[Dienewk]

Re: Testing this weekend

Dienewk where are you located?

Wagga mate and you



Sinking ??? no but the motor is sitting low in the waterand when i power on an the bow stand up it is causing these relief holes to go under water and the boat dies.

 

[Willyclay]

Re: Testing this weekend

so you dont think raising it will help get the exhaust relief ports out of the water?

Thanks for the pictures. I think you should raise the motor one hole and see what happens. Trial and error may be more effective than speculation. However, be careful not to kink the steering cable while raising/remounting the motor. Good luck!

 

[lightwood38]

Re: Testing this weekend

Wagga mate and you



.

Shame, Melbourne. There are a few good guys around here.

 

[Dienewk]

Re: Testing this weekend

Shame, Melbourne. There are a few good guys around here.

a few slack ones here but in saying that they are also banned from the lake at the moment.

 

[jonesg]

Re: Testing this weekend

Yeh, stern sits way too low in the water, how many batteries and fuel tanks are stored against the stern?
if none then the hull is water logged, wet foam etc.

Fiddling with the motor is a stop-gap, its not the root of the problem.
If you can live with that, then fair dinkum.

 

[Dienewk]

Re: Testing this weekend

Yeh, stern sits way too low in the water, how many batteries and fuel tanks are stored against the stern?
if none then the hull is water logged, wet foam etc.

Fiddling with the motor is a stop-gap, its not the root of the problem.
If you can live with that, then fair dinkum.

fair dinkum LOL, thats the 2nd time i have said that in my life....

how to i check/rectify wet foam? how did the hull get water logged?

it has about 35 litres of fuel and one battery in the back

 

[ezmobee]

Re: Testing this weekend

how to i check/rectify wet foam? how did the hull get water logged?

Do a search on here for "core sample". Older boats have expanded foam under the deck that over the years can absorb water and add a couple hundred pounds.

 

[Dienewk]

Re: Testing this weekend

just took a look at a few older posts about water logging and it doesnt look good if this is the case.

my question is


how do i know if it is water logged?? is there a test or a way of checking?

 

[Willyclay]

Re: Testing this weekend

Here's a link to some engine heighth guidelines if you decide to go that route.

http://continuouswave.com/whaler/reference/engineMountingHeight.html

 

[wilde1j]

Re: Testing this weekend

just took a look at a few older posts about water logging and it doesnt look good if this is the case.

my question is


how do i know if it is water logged?? is there a test or a way of checking?

There are meters made to measure water entrained in a hull ... they are expensive and usually owned by boat surveyors. It requires drilling test holes to test the core for water.

 

[Dienewk]

Re: Testing this weekend

Hi all, i have noticed a lot of post finish on the forums with no closing post.

so this is mine, i thank everyone for there help over the few months i have nutted this out.

I took the boat away for a 5 day weekend with the family and friends and have just returned. Before i left i raised the motor on the boat about 1 3/4 inchs, shifted spare fuel to the front of the hull and added a drum of water to the hull as well.
Got the boat on the water and started as per instruction in above posts, warm up bar all the way up and choke on, she fired and ran sweet, now for the test lets drive it.......

BLoody awesome she goes like a rocket but the real test is add a skier or some tubes.......................... yyyeeeee hhhaaaaaa lol was great ran like a dream and a awesome weekend was had by all.


the verdict::::

the last mechanic i called told me that the exhaust ports would be under water causing it to stall, he was correct, i evened out the boat wieght and raised the motor as well as keeping excess passangers out, hence lifting the ports from the water making the boat go like a rocket, when ever someone. larger, went to the stern of the boat for extended time the boat would stall, so if the exhaust ports are covered with water then the boat is a dog

Fix::::

as said. asjusted motor height and played with ballast and dont cart extra weight and the little 115hp 14ft hull is a awesome machine for time on the water with the family.

Again thanks to those that shared there knowlege and time with me

Tim