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Old 12-16-2021, 09:21 AM   #1
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Slobber tube

I’ve got a 2005 Fleetwood Excursion with a cat 3126 and have been hearing about the slobber tube being extended or a puke tank installed. Has anyone done this and if so how did you do it? Pictures would be great. I did talk with a diesel mechanic and he said it wasn’t a good idea do to may cause back pressure. Also if you have done this does it get on your road? I pull a jeep and don’t really want it covered with oil. TIA
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Old 12-16-2021, 09:59 AM   #2
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My 2006 Cat C7 with 45,000 miles does not leave any noticable slobber on the toad. I have a Demco Sentry Deflector (https://www.demco-products.com/rv-to...-accessories-1) mounted to the towbar so maybe that helps with the slobber, but even the deflector has no slobber on it. It certainly helps protect the toad.
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Old 12-16-2021, 10:01 AM   #3
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I don't have pics, but I ran mine off the slobber tube with 90* to a 1" hose then to the right rear corner of coach. Used a large hard plastic water bottle. Drilled holes in half of one side, filled with steel wool(make shift filter with no restriction). Drilled cap for tight fit, put hose in half way and secured to bottom of coach and keeping the hose in a DOWN hill run to the bottle. Every so often you can clean bottle and steel wool and reuse. Toad stays pretty clean. Good Luck
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Old 12-20-2021, 09:06 PM   #4
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Welcome to iRV2 .

Many post on aftermarket and homemade slobber tube mods .

The biggest improvement to my slobber problem was doing a re-calibration of the dip-stick to insure the crankcase NEVER has more that the factory fill amount .
In my case filling to the full line on the dip-stick was 2 quarts overfull and the toad got covered .
If your 3126 has a steel oil pan then 19 quarts , with filter is the maximum amount of oil on a service ; anything over comes out the slobber tube.
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Old 12-20-2021, 11:23 PM   #5
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Even if you have fairly minor slobber problem-- its worth doing to get crankcase gases/ oil vapor away from the aftercooler and radiator stack. It really helps keep them much cleaner. Safe Travels
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Old 12-20-2021, 11:41 PM   #6
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Quote:
Originally Posted by Jpiland View Post
I don't have pics, but I ran mine off the slobber tube with 90* to a 1" hose then to the right rear corner of coach. Used a large hard plastic water bottle. Drilled holes in half of one side, filled with steel wool(make shift filter with no restriction). Drilled cap for tight fit, put hose in half way and secured to bottom of coach and keeping the hose in a DOWN hill run to the bottle. Every so often you can clean bottle and steel wool and reuse. Toad stays pretty clean. Good Luck
================================================== ==
Why did you put the steel wool in the bottle?
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Old 12-21-2021, 09:01 AM   #7
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The Steel Wool works a diffuser, but does not make a restricting filter. What SKIP426 said, is 90% of the slobber problems.
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Old 12-22-2021, 09:54 PM   #8
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Here is my slobber. Sorry don't know how to flip the pic.
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Old 01-10-2022, 10:32 AM   #9
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Quote:
Originally Posted by Tglass View Post
Iíve got a 2005 Fleetwood Excursion with a cat 3126 and have been hearing about the slobber tube being extended or a puke tank installed. Has anyone done this and if so how did you do it? Pictures would be great. I did talk with a diesel mechanic and he said it wasnít a good idea do to may cause back pressure. Also if you have done this does it get on your road? I pull a jeep and donít really want it covered with oil. TIA
Tglass,
I have a question for you. You say your coach is an '05, correct? And you say it is equipped with a CAT 3125, correct? Well, our coach is an '04 Itasca Horizon 36GD with the CAT C-7 330HP. Its chassis build date is Sept of '03. The coach build date is Oct of '03. When I did some research on this, I was led to believe that it was mid year '03 when Freightliner was changing over from the 3126 to the newer model C-7. And anything produced after the beginning of '04 would have the C-7 in it. But, you state yours is an '05 with a 3126, hmmmm.
Scott
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Old 01-11-2022, 07:35 PM   #10
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Originally Posted by FIRE UP View Post
Tglass,
I have a question for you. You say your coach is an '05, correct? And you say it is equipped with a CAT 3125, correct? Well, our coach is an '04 Itasca Horizon 36GD with the CAT C-7 330HP. Its chassis build date is Sept of '03. The coach build date is Oct of '03. When I did some research on this, I was led to believe that it was mid year '03 when Freightliner was changing over from the 3126 to the newer model C-7. And anything produced after the beginning of '04 would have the C-7 in it. But, you state yours is an '05 with a 3126, hmmmm.
Scott
Its not hard to make a mistake on that. When I first got my 2001 I thought it had a 3126E but as time went on I figured out I had a 3126B, the best way to know for sure when your close to change in model year is to call cat with the vin to confirm.
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Old 01-13-2022, 07:30 PM   #11
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I believe the 3126-E Cat engine became a C-7 in 2004, same block, few changes according to a You Tube video where they give the differences between the two. The author of the video claims the 3126-E was actually the better of the two.

Now as to the slobber tube problem on my coach right out of the factory it had the extended tube all the way down to where it come out just on top of the rock guard where if it did have some oil condensation come out it would not get on the radiator. But the only reason a 3126 engine with the shallow pan would throw oil out the breather tube is because the original instructions from Cat were to put 23 quarts of oil. When all kinds of complaints started coming into Cat head quarters, they right away sent out a revision that the 3126-E or Cat with the shallow oil pan only needed 19 quarts of oil. You will never have a problem with oil coming out of the slobber tube.
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Old 01-13-2022, 07:53 PM   #12
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Its not hard to make a mistake on that. When I first got my 2001 I thought it had a 3126E but as time went on I figured out I had a 3126B, the best way to know for sure when your close to change in model year is to call cat with the vin to confirm.
Well,
I most likely would agree with you on the variations of the 3126 but, if you look at the pics below, you'll see there's a definite "C-7" embossed on my valve cover. It's kind-a odd too that, you'll also see "ACERT" on my valve cover yet, the ACERT versions were not supposed to be produced 'till either '05 or '06.
Scott
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Old 01-14-2022, 10:20 AM   #13
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Well,
I most likely would agree with you on the variations of the 3126 but, if you look at the pics below, you'll see there's a definite "C-7" embossed on my valve cover. It's kind-a odd too that, you'll also see "ACERT" on my valve cover yet, the ACERT versions were not supposed to be produced 'till either '05 or '06.
Scott
The first year/release of the CAT ACERT engines was 2004.
My Coach is a 2005 model year with a 2004 ACERT engine (C13).
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Old 01-14-2022, 12:20 PM   #14
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Very easy to distinguish between the 3126-E and the 3126-B. The E model has a shallow oil pan and the 3126-B has the deep oil pan and holds more oil.
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