Inboard outboard air cooled engine

[Lone Duck]

Re: Inboard outboard air cooled engine

Got a question! Has this project inspired anyone to build there own inboard/outboard air cooled boat?

Here's one other thing I left out on the build. These are pictures of the way I ran the gas line, I'm undecided if it's the safest way or if it may boil the fuel but it worked well on the test run in the garage. Any opinions?

Gas line looks good to me,fuel filter? There are after market muffs cheap, and there are omc muffs and reasonable. Get the good one. How did the coupling work? Is your system charging the batt? Did it shift smooth? I would like to build one but there is no place close to run it. Damn fine job I'd say.

 

[Lone Duck]

Re: Inboard outboard air cooled engine

Wild, 1st of all you're supposed to use a lock ring on the threads to hold the muffler on (this is the same lock ring electrical piping uses to fasten to an electrical box) it is like a small spanner ring with a std. pipe thread, and usually can be found in any hardware store that has electrical supplies.

I also suggested maybe using 2 of these muffler, in place of 1, to take the load, & wear & tear off 1, they appear reasonably priced. You can add an I.P.S. (Iron Pipe Size) galvanized Tee, plus 2 Galv I.P.S. Elbows, then just screw them into this.

A tee would cause more heat build up.

 

[maxum247]

Re: Inboard outboard air cooled engine

Gas line looks good to me,fuel filter? There are after market muffs cheap, and there are omc muffs and reasonable. Get the good one. How did the coupling work? Is your system charging the batt? Did it shift smooth? I would like to build one but there is no place close to run it. Damn fine job I'd say.

Forgot to put the fuel filter in the line for the test run, I was excited to see how it was all going to work out and forgot to put it in!

The coupling works nice.

Don't know if it is charging haven't checked it yet.

"Pull the positive cable with the engine running to see if it's charging or don't these engines work that way?"

Idles down shifts smooth!

No puddles, nothing?

 

[wildmaninal]

Re: Inboard outboard air cooled engine

The gas line looks fine, it makes no physical contact with the motor anywhere, besides,,, that, and the exhuast system will have air circulating around them at all times when in use to help keep them cool, unless you plan on covering the motor in the future? Also, I'd say you found some great creative uses for eyebolts on this project.

Well sense I guess I'm supposed to be the outcast on this thread, and nobody else's suggestions or input seem to be welcome here. I guess I shouldn't of posted MY WARNING ABOUT THESE CHEAP MUFFLER.

If Maxum decides to use those cheap mufflers (be it 2 or 1 of them) best of luck because they suck. SIMPLE AS THAT , he will be buying replacements most likely if he decides to go with those. IF YOU WANT TO BUY A MILLION OF THOSE MUFFLERS GO FOR IT, you'll have plenty of replacements. And as Lone Duck mentioned

A tee would cause more heat build up.

VERY TRUE

 

[MikDee]

Re: Inboard outboard air cooled engine

Well sense I guess I'm supposed to be the outcast on this thread, and nobody else's suggestions or input seem to be welcome here. I guess I shouldn't of posted MY WARNING ABOUT THESE CHEAP MUFFLER.

If Maxum decides to use those cheap mufflers (be it 2 or 1 of them) best of luck because they suck. SIMPLE AS THAT , he will be buying replacements most likely if he decides to go with those. IF YOU WANT TO BUY A MILLION OF THOSE MUFFLERS GO FOR IT, you'll have plenty of replacements. And as Lone Duck mentioned VERY TRUE

Well Wild, nobody said you're an outcast here and we all respect your opinion, usually everyone has posted good suggestions, there's no reason to get riled up, I believe you about the muffler, that it's cheaply made, But it should work for the time being, until he comes up with a better idea, and it certainly would be easy to change at a future date. I've been doing my own searching, and can't find any other "straight thru" type mufflers for these motors, unless you adapt a straight thru car muffler, but most of them start with a 2" inlet, & outlet, and are much larger. Unless you make your own custom design muffler? So, what is the lesser of 2 evils, and I doubt a Tee would get hotter, the exhaust has 2 ways to go then, instead of 1, Besides, does it really matter (outside away from the boat?)

 

[MikDee]

Re: Inboard outboard air cooled engine

Forgot to put the fuel filter in the line for the test run, I was excited to see how it was all going to work out and forgot to put it in!

The coupling works nice.

Don't know if it is charging haven't checked it yet.

"Pull the positive cable with the engine running to see if it's charging or don't these engines work that way?"

Idles down shifts smooth!

No puddles, nothing?

Wow! That's Great News! I'm really excited for you!

Build my own boat? love to, but I have a truck, and 2 cars lined up waiting for me to work on,,, The 96' S-10 needs a new (in tank) fuel pump, the 98' Neon has a mystery antifreeze leak, on top of needing a replacement head gasket, and the 89' Buick Regal has a mystery interior rain leak,,, and every day it either rains, sleets, snows, or blows! and my garage is full, so here I am champing at the bit, getting frustrated by the day, figuring I hafta wait for winter to be over to get anything done.

But here's a few of my custom assembled, modded, Fast electric R/C boats, that keep me occupied (in nice weather, again)

http://smg.photobucket.com/albums/v240/MikDee/Model Boats/?action=view&current=Stepd.Syncron.flv

http://smg.photobucket.com/albums/v240/MikDee/Model Boats/?action=view&current=FDM32Video.flv

 

[wildmaninal]

Re: Inboard outboard air cooled engine

Well Wild, nobody said you're an outcast here and we all respect your opinion, usually everyone has posted good suggestions, there's no reason to get riled up, I believe you about the muffler, that it's cheaply made, But it should work for the time being, until he comes up with a better idea, and it certainly would be easy to change at a future date. I've been doing my own searching, and can't find any other "straight thru" type mufflers for these motors, unless you adapt a straight thru car muffler, but most of them start with a 2" inlet, & outlet, and are much larger. Unless you make your own custom design muffler? So, what is the lesser of 2 evils, and I doubt a Tee would get hotter, the exhaust has 2 ways to go then, instead of 1, Besides, does it really matter (outside away from the boat?)

The new muffler (never used) that I had lasted 1 day, in the middle of mowing the yard it blew off the pipe. Really disappointing.

Just a suggestion, they have up right mufflers that look almost like a tractor muffler (that sticks out of the hood), that might be the way to go, if you can get it to clear the top of the transom. I have one around but I would half to search for it to take a picture of it.

Mikdee, I mean no harm to anybody, I try not to steer anybody in the wrong direction. I am just trying to save Maxum from wasting money.

 

[Lone Duck]

Re: Inboard outboard air cooled engine

Forgot to put the fuel filter in the line for the test run, I was excited to see how it was all going to work out and forgot to put it in!

The coupling works nice.

Don't know if it is charging haven't checked it yet.

"Pull the positive cable with the engine running to see if it's charging or don't these engines work that way?"

Idles down shifts smooth!

No puddles, nothing?

Take a reading on your batt. before you start up then take another . after start up the reading will be higher if it is charging. Pulling the pos.cable will not kill your engine. The engine has a stator that feeds A.C. current to your rectifier which changes it to D.C through your ign.switch to your batt. Also under or beside your flywheel there is a ign. coil that gives spk. to the plug which is timed and created by a magnet passing the coil. Your ign. side of your key switch grounds that coil out to shut down engine. Also another wire came from stator on some models to go to headlights which were also A C. Some folks used to get the AC and DC mixed up and fried everything.

 

[MikDee]

Re: Inboard outboard air cooled engine

The new muffler (never used) that I had lasted 1 day, in the middle of mowing the yard it blew off the pipe. Really disappointing.

Just a suggestion hear, they have up right mufflers that look almost like a tractor muffler (that sticks out of the hood), that might be the way to go, if you can get it to clear the top of the transom. I have one around but I would half to search for it to take a picture of it.

Mikdee, I mean no harm to anybody, I try not to steer anybody in the wrong direction. I am just trying to save Maxum from wasting money.

Wildman, I know that for sure, from your previous posts Now a small tractor muffler sounds like it might be a good heavy duty one, and a good idea! I think I'll go search for that

Peace Man!

Hey Maxum just had an idea, for the time being, why don't you just get a 3/4" IPS pipe coupling, and a short nipple (piece of pipe threaded both ends), and extend your muffler further away from the boat? I hope you're using teflon tape on the pipe threads, so in the future, if need be you can get the piping apart,,, I don't know what else you could use?

 

[Lone Duck]

Re: Inboard outboard air cooled engine

The new muffler (never used) that I had lasted 1 day, in the middle of mowing the yard it blew off the pipe. Really disappointing.

Just a suggestion hear, they have up right mufflers that look almost like a tractor muffler (that sticks out of the hood), that might be the way to go, if you can get it to clear the top of the transom. I have one around but I would half to search for it to take a picture of it.

Mikdee, I mean no harm to anybody, I try not to steer anybody in the wrong direction. I am just trying to save Maxum from wasting money.

I to am sorry for not acknowledging your post. But this part of the project has been a long time coming and I guess we got a little excited. About the muff. I can't agree with you. I have put those type on my coustomers engines and they have lasted at least 3 yrs. Maybe you got a bad batch or something. Blew it in 1 day? Some thing is wrong here , Even after market ones should'nt be that bad. We make sugestions and max takes it from there.

 

[wildmaninal]

Re: Inboard outboard air cooled engine

Wildman,

Peace Man!

Peace! .

Maxum I'll try to search that muffler down and take a picture of it, you may or may not like it.

It's all good Lone Duck, I'm sure they have different brands or manufactures making the same style muffler, the one in the link looked just like the junk, I mean mufflers that I have. Yes it only last one day, and the other that I put on before the lawn mower started giving me problems rusted (what seemed like) instantly.

 

[maxum247]

Re: Inboard outboard air cooled engine

The new muffler (never used) that I had lasted 1 day, in the middle of mowing the yard it blew off the pipe. Really disappointing.

Just a suggestion, they have up right mufflers that look almost like a tractor muffler (that sticks out of the hood), that might be the way to go, if you can get it to clear the top of the transom. I have one around but I would half to search for it to take a picture of it.

Mikdee, I mean no harm to anybody, I try not to steer anybody in the wrong direction. I am just trying to save Maxum from wasting money.

Wild, can you give me an idea of the size of the muffler your talking about?
Trying to keep the muffler as small as possible to help keep from tearing it off on something.
I replied to your comment about the muffler you posted earlier tonight thought I clicked the submit button but must have not clicked on it right. Anyway I left the computer to do something else thinking the reply went through but I see it didn't. My apologies!

 

[wildmaninal]

Re: Inboard outboard air cooled engine

Wild, can you give me an idea of the size of the muffler your talking about?
Trying to keep the muffler as small as possible to help keep from tearing it off on something.
I replied to your comment about the muffler you posted earlier tonight thought I clicked the submit button but must have not clicked on it right. Anyway I left the computer to do something else thinking the reply went through but I see it didn't. My apologies!

Once again, it's all good . The muffler is about the size of a coke can, it would be coming off of the motor with the pipe curved up, then the coke can size muffler then it goes back to a pipe that is curved where rain can't fall directly into the opening. Almost like a stack on a big rig.

 

[MikDee]

Re: Inboard outboard air cooled engine

Here's the only thing I can find that appears to be stout enuff, or quiet enuff to fit your engine:
http://www.mfgsupply.com/m/c/18-8942.html?id=uqGb96mC"

 

[wildmaninal]

Re: Inboard outboard air cooled engine

Here's the only thing I can find that appears to be stout enuff, or quiet enuff to fit your engine:
http://www.mfgsupply.com/m/c/18-8942.html?id=uqGb96mC"

You could take something like that muffler in the link above and make it work. The muffler I mentioned would be sorta the wrong style for that motor, but I'm sure there is something out there similar that would work. Personally in my opinion the concept of an up right muffler would be neat on that boat. You could even make a muffler.

 

[wildmaninal]

Re: Inboard outboard air cooled engine

Here is the muffler I was talking about, of coarse considering the air filter, that would be a problem. But it was only a thought. Although it does turn to the left (when looking at it mounted on the motor), so something like this may clear the air filter. To be honest I think it came off of a side shaft motor but I'm not for sure, we have a bunch of lawn mower parts around here.

 

[maxum247]

Re: Inboard outboard air cooled engine

Here is the muffler I was talking about, of coarse considering the air filter, that would be a problem. But it was only a thought. Although it does turn to the left (when looking at it mounted on the motor), so something like this may clear the air filter. To be honest I think it came off of a side shaft motor but I'm not for sure, we have a bunch of lawn mower parts around here.

Wild, went out and looked at the engine on the "SHAKER" tonight, it looks like it might fit, the problem I see is where it bolts to the engine. Looks like it has a curve to the mounting flange. It would be hard to tell for sure by looking at the picture. Looks like it may clear the air filter not sure. On second thought the curve looks like it is in the right direction to curve it away from the air cleaner. Is this type of muffler expensive?

 

[wildmaninal]

Re: Inboard outboard air cooled engine

Wild, went out and looked at the engine on the "SHAKER" tonight, it looks like it might fit, the problem I see is where it bolts to the engine. Looks like it has a curve to the mounting flange. It would be hard to tell for sure by looking at the picture. Looks like it may clear the air filter not sure. Is this type of muffler expensive?

As for how much the muffler would cost....>very good question , I have no earthly idea. We received this along with a bunch of lawn mower parts. I'm not sure if it would clear the air filter either. One thing I didn't get to do is experiment with it, I wanted to at least place it on a couple of different motors to see what it looked like. It was dark out when I went to take the pics, all the parts are in our storage out back.

 

[Lone Duck]

Re: Inboard outboard air cooled engine

Wild, went out and looked at the engine on the "SHAKER" tonight, it looks like it might fit, the problem I see is where it bolts to the engine. Looks like it has a curve to the mounting flange. It would be hard to tell for sure by looking at the picture. Looks like it may clear the air filter not sure. On second thought the curve looks like it is in the right direction to curve it away from the air cleaner. Is this type of muffler expensive?

They cost a bit of money. Some of those type are made to turn from ex. port to around the front of the engine and the ex. is aimed down behind the tractor front axle. Be careful, those are real quiet muffs, but again they hold a lot of heat. More mass in muff, retains more heat. I quess you could point one straight up and aimed to the rear. but the wind could blow it in your face. On a cold day that would be a plus.

 

[maxum247]

Re: Inboard outboard air cooled engine

They cost a bit of money. Some of those type are made to turn from ex. port to around the front of the engine and the ex. is aimed down behind the tractor front axle. Be careful, those are real quiet muffs, but again they hold a lot of heat. More mass in muff, retains more heat. I quess you could point one straight up and aimed to the rear. but the wind could blow it in your face. On a cold day that would be a plus.

The muffler looks kind of cool but I think it would be a little tight in the boat. Didn't do much on the boat this weekend , spent most of my time with the family! I did drag out the electric wench tonight and clean it up a bit. 3500 pound capacity, you think that will haul the ole "SHAKER" out of the water and into the back of the truck? Still unsure if I'll use it but I am thinking it over!