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Old 10-03-2018, 12:09 PM   #1
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Alpine Muffler Replacement

I changed out the muffler on the Alpine at 103k miles just recently. Credit to Santa Dave!!
All it took was a short 90 degree 4 od/id, a few hangers, clamps, short piece of angle iron and an Aero 4040.
Part numbers from Ryder Fleet Products:
90 degree elbow: S48 12488A
Exhaust clamp for lap joint: S48 20S400
Exhaust hangers: W26 J008167
Black 6 muffler clamp: W26 M002117

Patty says it sounds like an airplane now.


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Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 36' FDS 72232 Our Photos
We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
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Old 10-03-2018, 01:41 PM   #2
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….looks pretty cool...but have to say--I miss the old Alpine sound--you can tell it from a mile away--well maybe a 1/2 mile [smile]…...
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Old 10-03-2018, 02:31 PM   #3
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Tail pipe looks a little small to me....is that 6"?
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Old 10-03-2018, 03:21 PM   #4
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Tom.....that looks great ! Nice job and thanks for posting the info.
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Old 10-03-2018, 08:53 PM   #5
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Hmmm......
Well it was originally a 5" outlet with a 4" inlet on the OEM muffler. The 4040 is 4" in and out. So it is an inch smaller. I kept the old 5" extention and am toying with adding it to the 4" pipe



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Tail pipe looks a little small to me....is that 6"?
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Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 36' FDS 72232 Our Photos
We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
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Old 10-03-2018, 08:54 PM   #6
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Yup entirely different. At 1200 rpm there is a rumble.



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Originally Posted by Old Scout View Post
.looks pretty cool...but have to say--I miss the old Alpine sound--you can tell it from a mile away--well maybe a 1/2 mile [smile]...
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Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 36' FDS 72232 Our Photos
We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
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Old 10-03-2018, 08:58 PM   #7
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First drive....without the toad 5K lbs, it did feel like it pulled harder. We will see when I get the VMSpc hooked up. Santa Dave says more boost and better mileage.
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Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 36' FDS 72232 Our Photos
We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
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Old 10-03-2018, 09:10 PM   #8
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OS a mile is about right. Camphosts at a COE in CA could hear us 2 miles away climbing the hills. Always knew it was us by the "Alpine Sound"



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Originally Posted by Old Scout View Post
.looks pretty cool...but have to say--I miss the old Alpine sound--you can tell it from a mile away--well maybe a 1/2 mile [smile]...
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Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 36' FDS 72232 Our Photos
We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
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Old 10-03-2018, 09:17 PM   #9
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Quote:
Originally Posted by Tom and Patty View Post
Hmmm......
Well it was originally a 5" outlet with a 4" inlet on the OEM muffler. The 4040 is 4" in and out. So it is an inch smaller. I kept the old 5" extention and am toying with adding it to the 4" pipe
Haha, I stand corrected. Mine is also only 5" outlet.
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Old 10-10-2018, 06:08 PM   #10
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muffler

Our muffler output and tip just rusted/broke off. Saved it and along with the tip. Flipped it over then stuffed it into the muffler. Just enough left of the muffler to clamp it. Looks ugly sticking out but it works.
Now I would like to replace with the Aero.

What is the pitfall of using a 5" Aero and a 4" to 5" elbow?

Dean, I am with you, still like the Alpine sound. Where do you find a new, old style muffler?

Gary
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Old 10-10-2018, 07:14 PM   #11
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The new OE Muffler can be purchased from Ryder Fleet Products. I believe this is the direct replacement but verify.Click image for larger version

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I just used the 4 as it was a bit less and I found the 4 od and id easily.
I imagine the 5 would be a bit louder.


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Originally Posted by Pollo man View Post
Our muffler output and tip just rusted/broke off. Saved it and along with the tip. Flipped it over then stuffed it into the muffler. Just enough left of the muffler to clamp it. Looks ugly sticking out but it works.

Now I would like to replace with the Aero.



What is the pitfall of using a 5" Aero and a 4" to 5" elbow?



Dean, I am with you, still like the Alpine sound. Where do you find a new, old style muffler?



Gary
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Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 36' FDS 72232 Our Photos
We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
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Old 11-30-2018, 02:40 PM   #12
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Update.


After the muffler replacement and the exhaust manifold replacement (small crack) we now have picked up about 2 psi of boost. I'm sure some of this is due to the new manifold too.
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We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
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Old 12-05-2018, 03:08 PM   #13
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from my notes:
Muffler & muffler hangers: exhaust muffler = Fleetguard #86542, the lower straps (2ea req'd for OEM config) of the muffler hanger = Nelson number: Q27375, Fleetguard number: 3918230-S. From Ryder Fleet Products 1-800-759-6479 (http://www.ryderfleetproducts.com/ryder/) muffler part# NEL86542M, $140.00, clamps part # NEL90868A.Experience reported by owner of a 2002, thirty-eight ft. Alpine with the 8.9 liter ISL engine: bought a replacement muffler made by Nelson- part no. 86542M-10, a type 5 oval muffler from Mid South Cummings Branch in Birmingham, AL. This muffler may also fit other models
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Old Today, 11:59 AM   #14
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I replaced mine 3 years ago

I replaced mine 3 years ago and I love it. It has a real rumble when driving along side a concrete barrier and in tunnels but other than that it's great.
I have attached my parts purchased photo and two other photos.
It cost me $75.00 to get it welded up. DO NOT FORGET TO DISCONNECT ALL THE PLUGS IN THE BATTERY COMPARTMENT. TRANSMISSION, VCM, ETC.
Before welding. (I disconnected everything I could and it worked out OK)
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