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Topic: Aqua Hot Black Exhaust (Read 2458 times) previous topic - next topic

Re: Aqua Hot Black Exhaust

Reply #25 –
Quote from: GleamB –
Can you use Camco Genturi with a slide?
How long do they " hold up?"
Anyone try and make one themselves?
I don't have slides. However, I would think a person "could" make a bend after the first Gen-turi section with a length of flex exhaust tubing that so many utilize when mounting one of those ity bity turbo mufflers.

According to my heat gun. The hottest part (when running rich) was 180F just where the metal shield ends inside the Gen-turi. And as it was designed to deal with diesel exhaust gasses. I'm sure it will be fine. And my neighbors appreciate not being blasted with AH vapors.

As for longevity. Well these are RV's we drive. They break on a regular schedule. So $180 every few years for a new Gen-Turi shouldn't be too big a hit to deal with.
Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: Aqua Hot Black Exhaust

Reply #26 –
Quote from: bigdog –
$180 every few years for a new Gen-Turi shouldn't be too big a hit to deal with.
That'll almost get you one new HWH solenoid!
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Aqua Hot Black Exhaust

Reply #27 –
Elliot, another consideration is the type and age of fuel in your tanks.  If it has corn in it (B10 or higher), or not a low sulfur blend, this may contribute to the soot you are seeing.  As we discussed off line, your soot spotting is not unusual from my experience, just the quantity may be a bit more than I see.  Woody.
2001 4010 U320 build #5865 "Bluto-d-Bus" since 09/18
2006 Honda Element ESP Toad
Full timing since 2016 in Western MT
Copilot: Sitka
1975 GMC 260 Avion: sold

Re: Aqua Hot Black Exhaust

Reply #28 –
Quote from: Pyolet –
...If it has corn in it (B10 or higher), or not a low sulfur blend, this may contribute to the soot you are seeing.
Not sure where you got that info.  Soot and other emissions are actually reduced with biodiesel.  Although corn oil could be used, Biodiesel is much more likely to be made from soybean or canola oil. 
Dave and Kelli
1997 U295 40' Build #5188 CSGI
1995 U240 36' Build #4621 SBID-SOLD
2006 Jeep Wrangler Rubicon

Re: Aqua Hot Black Exhaust

Reply #29 –
Quote from: Dave Larsen –
Not sure where you got that info.  Soot and other emissions are actually reduced with biodiesel.  Although corn oil could be used, Biodiesel is much more likely to be made from soybean or canola oil. 
Not sure about pyolet. But I read that in my (now sold) Mercedes Benz twin turbo diesels manual. "do not use a bio-diesel blend higher than B-8" due to engine damage. I'm not sure why a "cleaner" burning bio-diesel would damage an engine. Unless it wasn't so clean after all.
Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: Aqua Hot Black Exhaust

Reply #30 –
Quote from: Rudy –
Elliott,  Make sure your air shutter on the bottom of the burner is at least 1/2 open.  The phillips screw should point straight into the side of the burner or even moved more toward the tank.  The burner is not sensitive to too much air but is really is to too little air.
Rudy can I get at the shutter without removing the burner? I don't want to mess with it too much since we're depending on it for heat this week but would crawl down there and play with it if it's accessible with just the cover off.

We've descended to lower elevation and are still shooting lots of black soot on the ground so I think we're running rich.
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Aqua Hot Black Exhaust

Reply #31 –
I'm not Rudy but, on my '01, when you take both covers off the unit you can get to it.  It is on the bottom of the motor.
Glen
PS my wife and I Love our socks!!!

Retired Nurse and Bat Chief
2001 U320 36' 450 Cummins
Past 1981 Bluebird 36' 3208 Cat
HD2500 Chevy Toad

Re: Aqua Hot Black Exhaust

Reply #32 –
Elliott,  The round air shutter is located on the bottom of the burner.  Once the covers are off the burner is easy to access.

The shutter adjustment phillips screw is on the right hand side.  Under normal conditions, that screw should be pointing straight into the side of the burner.  At high elevations, the screw should be pushed as close to the tank, the nozzle end of the burner.  This opens the shutter as far as possible allowing the max amount of air into the burner.

Any time black smoke has been coming from the burner, the burner needs to be serviced cleaning up the soot from the black smoke.

All the best dealing with high altitude operations and cleaning the results.
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: Aqua Hot Black Exhaust

Reply #33 –
Quote from: Rudy –
Any time black smoke has been coming from the burner, the burner needs to be serviced cleaning up the soot from the black smoke.
New nozzle too? Or do I just need to clean the burner/swirler/chamber? I installed the current nozzle in December and it's been running daily ever since.
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Aqua Hot Black Exhaust

Reply #34 –
Just clean things up
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: Aqua Hot Black Exhaust

Reply #35 –
Has anyone ever had raw diesel coming out of their AH?  Asking for me.  Hope Im not hijacking Elliots thread.
06 Nimbus 34'
Build #6362

Re: Aqua Hot Black Exhaust

Reply #36 –
Quote from: EddieNel –
Has anyone ever had raw diesel coming out of their AH?  Asking for me.  Hope Im not hijacking Elliots thread.
It can happen. When it happened to me it was the igniter. When the AH is turned on there is a sequence that starts. Rudy can correct me if I have it wrong. First the blower comes on to evacuate fumes, then the pump comes on and sprays fuel after that the igniter starts then the flame sensor detects that it has fired. If the igniter didn't ignite the fuel air mixture the flame sensor shuts the pump off. During that time fuel can accumulate in the pipe and if you keep turning it back on as I did fuel will come out the pipe.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Aqua Hot Black Exhaust

Reply #37 –
Diesel coming out of exhaust pipe is often caused be controller box security circuit failure. It is relatively rare but does happen. In 12 years of rebuilding them I have heard of it only 4 times.
Jim

2002 U320 42'
Jim Frerichs
2002 U320 42'

Re: Aqua Hot Black Exhaust

Reply #38 –
Thats good to know.  I turned everything off and was going to come back and clean up the raw diesel.  I ended up getting side tracked and forgot.  Turned it on a couple of days later when it was supposed to freeze.  The AH fired right up but smoked like crazy for a few minutes.  Its been working fine but I do need to service it this spring.
06 Nimbus 34'
Build #6362

Re: Aqua Hot Black Exhaust

Reply #39 –
Pictures of what happens when you aren't getting clean combustion. This is from about four months of daily use.
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Aqua Hot Black Exhaust

Reply #40 –
Elliot be carful with those mount bolts, torque is real low. Nozzle filter and a brush job. Don't forget to position the welded seam of the burner can goes on top as I recall.
Scott  :giggle:

Re: Aqua Hot Black Exhaust

Reply #41 –
Elliott is experienced as he has broke an eye bolt before.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Aqua Hot Black Exhaust

Reply #44 –
If you have carbon/soot like that in the chamber should you use a wire brush in the exhaust to clean it out? Working from exhaust tip back towards chamber?
Frank & Daisy
NO LONGER  "looking for the perfect Foretravel
36' or less non slide preferred."  She has been found and is ours.
2003 U320 36' non slide  Unit 6103
Cummins ISM 450
Allison 4000MH

Re: Aqua Hot Black Exhaust

Reply #45 –
Quote from: Lt403 –
If you have carbon/soot like that in the chamber should you use a wire brush in the exhaust to clean it out? Working from exhaust tip back towards chamber?


I was told to use a wire brush in the chamber and the exhaust would blow all the soot out the pipe.  It might blow fine ash for a few days.
1998 U320 40'
2005 GMC Yukon
MC# 17609

Re: Aqua Hot Black Exhaust

Reply #46 –
Great thread!  Thanks for posting pics @Elliott
06 Nimbus 34'
Build #6362