B7800 with exhaust stack, and muffler removed

[descanso1]

KCENDER said "Very good looking job on a nice modification,definitely better than the factory setup.Would look really good with an exhaust stack on the other side." on the post where I modified the intake and air filter on my B7800. So I did it, removed the muffler and tail pipe and replaced it with a straight through system, home made out of scrap metals (cost 0.00). Now it looks and sounds like a real tractor......

 

[Mendonsy]

What ... no chrome stack??? :laughing:

 

[descanso1]

What ... no chrome stack??? :laughing:

Didn't have any chrome in my scrap pile, but I did increase the size of the pipe and did a slash cut ;-(

 

[kcender]

Looks good.Would love to hear how it sounds,especially with no muffler.I have thought of putting a stack on my B2620,mainly to keep soot off the loader,but haven't got up the nerve to cut a hole through the side panel.

 

[descanso1]

One thing I found interesting is that Kubota uses the same size muffler on the 17hp as they used on my 30hp. You would think that the exhaust is restricted on the larger tractor. I think it sounds good without the muffler.

 

[dieselcrawler]

I would want an additional brace or mounting point on the stack. That much leverage onthe exhaust manifold would likely to break something if you get into some low hanging branches. Most facory ones are mounted in additional places. Mine will be, got a good lung full of fumes hookin chains up to the loader bucket last night, need a stack. Like yours, likely straight piped! How loud is it?

 

[ericher69]

One thing I found interesting is that Kubota uses the same size muffler on the 17hp as they used on my 30hp. You would think that the exhaust is restricted on the larger tractor. I think it sounds good without the muffler.

Yeah that exhaust should now be piped directly into your face and lungs!

We need a video of the straight piped sound

Sent from my iPhone 5s 64Gb using TractorByNet

 

[descanso1]

I would want an additional brace or mounting point on the stack. That much leverage onthe exhaust manifold would likely to break something if you get into some low hanging branches. Most facory ones are mounted in additional places. Mine will be, got a good lung full of fumes hookin chains up to the loader bucket last night, need a stack. Like yours, likely straight piped! How loud is it?

Yes I can see that additional work is needed to allow for flexing and additional bracing is needed. Also I found after operating it the sound is to loud and am going to have to find some kind of baffle to make it a little less noisy. But the tractor did seem to have a little more power, does not bog down as easy..

 

[k0ua]

One thing I found interesting is that Kubota uses the same size muffler on the 17hp as they used on my 30hp. You would think that the exhaust is restricted on the larger tractor. I think it sounds good without the muffler.

what? WHAT? HUH?

 

[descanso1]

Yeah that exhaust should now be piped directly into your face and lungs!

We need a video of the straight piped sound

Sent from my iPhone 5s 64Gb using TractorByNet

Like the smell of diesel exhaust:thumbsup:.... The exhaust actually goes way above my head, it comes out with enough force, plus the heat of the exhaust makes it rise, no exhaust hitting me even when I am running at full speed. The sound is to loud and I am going to figure out how to baffle it down a little.

 

[themichelob]

Nice, but.....I have to remove my bucket every fall to install my front-mount snowblower. No way to back out under that crossbar that I can see if you ever needed/wanted to remove the bucket. Wish I could do work like that....Regards, Mike

 

[descanso1]

Nice, but.....I have to remove my bucket every fall to install my front-mount snowblower. No way to back out under that crossbar that I can see if you ever needed/wanted to remove the bucket. Wish I could do work like that....Regards, Mike

No problem, you could do the same thing only run the up pipe behind the crossbar... I am in the process of modifying it now to take care of a couple issues. Watch for a couple updates...

 

[descanso1]

I modified the new exhaust to take care of a few problems like vibration that could possibly crack the manifold and the loud sound... Took my original mods to a muffler shop I had used in the past and he came up with a flexible connector and he had a used muffler off of a Harley, he modified every thing and I made new bracing for it and added a rain cap, I think it looks great and sounds good now. Very happy with it... I guess I will have to change the RTV over next...

 

[DarrylH20]

Thats really nice, I love it good job.

 

[Notforhire]

I made new bracing for it and added a rain cap, I think it looks great and sounds good now.

Nice job! I was happy to see the rain cap. Hydro lock= bad.

Bill

 

[PHPaul]

I grew up in mid-Michigan on a farm in the 50's and 60's. You could always tell the farmers that had Farmall M's...they were the ones with hearing aids in both ears.

 

[Tags]

Looks good! Cant beat the old school tapety tap sound of a rain cap at idle.

 

[milkman]

How does that motorcycle muffler sound? I had an IH Cub muffler on mine for a while and it was too loud, then I found an oval muffler that fit 97 Civic and sounds much quieter. Good idea on the flex joint, looks just like the one I got, just haven't installed it yet.

Oh yea, we need to know about that breather too, have you done a thread on that?

 

[descanso1]

View attachment 365408View attachment 365409

How does that motorcycle muffler sound? I had an IH Cub muffler on mine for a while and it was too loud, then I found an oval muffler that fit 97 Civic and sounds much quieter. Good idea on the flex joint, looks just like the one I got, just haven't installed it yet.

Oh yea, we need to know about that breather too, have you done a thread on that?

Yes, have done thread on breather, I posted it a couple of days b4 this one, the Harley muffler sounds great, but not as good as the old J.D. one lungers, (pop-pop) and not as good as my Harley sounded when I had one (sure miss it). I have noticed a little more power and it is not using as much fuel..... Don't know what it will do in the 1/4 mile, maybe 17 mph!!!! :laughing:

 

[descanso1]

Looks good! Cant beat the old school tapety tap sound of a rain cap at idle.

I know, raised on farms and miss the old school!!!