Exhaust System 2005 Holiday Rambler Navigator

[MDMiller3]

I am Looking for any information on the original design of the hole exhaust system for a 2005 Holiday Rambler Navigator with a Series 60 Detroit Diesel 515 HP engine.  If you have photos can help or blueprints.

Thanks for the help.

[JDCrow]

Is yours missing something? You have an absolute beast of an engine. Envious am I 

[MDMiller3]

The Exhaust on it now cover the oil pan drain plug.

[JDCrow]

12 minutes ago, MDMiller3 said:

The Exhaust on it now cover the oil pan drain plug.

Wow, that would suck 

[vito.a]

The Monaco Executives and Signatures with the Detroit 60 should be identical.  

Has yours been drug and possibly bent to cover the drain plug?

[waterskier_1]

I have an 2005 Exec with the DD Series 60 engine.  What part of the exhaust system do you need.  Just what's below the engine to the muffler?

  -Rick N.

[Chargerman]

I replaced my exhaust last year from the turbo back. If your exhaust is covering the drain plug then it has been pulled out of its original position. A little surprised it could have happened as there should be a pretty stout cross brace right in front of it. If your system is still in good shape then a good ratchet strap or load binder can pull it forward back to it’s original position. If it needs replacement I don’t think drawings will be of much help as there are some tricky bends as it comes down from the turbo to avoid the frame and engine. I fabricated mine after ordering a series of bends, tubing and flex pipe from a truck supply house on-line. There is a special flattened section that goes under the engine from the factory. I replaced it with standard round pipe. To me the flattened section just restricted flow and the round pipe is still higher than the crossbrace. All of the system from the turbo to the flex pipe are a welded system and require some decent fabrication and welding skills to pull off a good job. Sorry that I can’t seem to find pics of mine as it would have given you a good idea of the job. 

[Hypoxia]

8 hours ago, vito.a said:

Has yours been drug and possibly bent to cover the drain plug?

That's what I would think also.  I used FleetPride for my exhaust parts although NAPA or any truck supply should have them.

[waterskier_1]

I have an 2005 Exec with the DD Series 60 engine.  Here are some pics.  If not what you need let me know and I'll try and get better ones.

  -Rick N.

[MDMiller3]

To waterskier_1, what is the diameter of your pipe from the turbo to the muffler?

[waterskier_1]

13 hours ago, MDMiller3 said:

To waterskier_1, what is the diameter of your pipe from the turbo to the muffler?

The Outside Diameter is 5.0"

 

[Paul A.]

You will find any part you need for an exhaust system on your coach at; https://www.dynaflexproducts.com/. Largest Mfg. of Class 8 Truck exhaust systems in the U S A. You can order thru any class 8 truck dealer, or many class 8 truck repair entities. 

[georgecederholm]

On 3/9/2022 at 9:26 PM, MDMiller3 said:

The Exhaust on it now cover the oil pan drain plug.

Mike,

Another 2005 Exec with the Series 60 here. Mine is very similar to the pictures that Rick N posted and, yes, the pipe runs very close to the oil drain plug. When I tried to replace the plug with a Fumoto valve, it was right up against the exhaust. What a mess.

What I did was add a 3/4” brass pipe thread “street elbow”. The drain plug is 3/4” NPT. I put the elbow in the oil pan hole and then the Fumoto valve into the elbow. This gives a much better angle for flow than even the original plug relative to the exhaust. The new assembly is still higher than the exhaust, so I haven’t had an issue with dragging the Fumoto on low clearances.

I do have a protective cross member near this area, but it is located under the transmission, more towards the front of the chassis than the exhaust. This cross member is definitely the “low point” as I’ve dragged it several times over the years.