Author Topic: How to buy a used diesel pusher and inspect the engine  (Read 209 times)

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Offline ByronWhite

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How to buy a used diesel pusher and inspect the engine
« on: February 06, 2020, 10:19:51 AM »
I am looking for a Used diesel pusher. Year 2003 or so. 30 or 32ft Read somewhere that the ISB275 is adequate but underpowered. Found a 2003 Monaco 32 but the owner thinks it is ISB275 so have walked away from this one for now. Any way across the country and don't want to fly out until get better info. What are the experts thoughts on a ISB Cummins vs the 300 for this size unit will also tow 4200 lb.
What should I be doing to educate myself on Diesel ownership besides going all over this site. Presently own a 26ft 2005 Fleetwood A with workhorse gas.

Offline Brett Wolfe

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Re: How to buy a used diesel pusher and inspect the engine
« Reply #1 on: February 06, 2020, 11:02:41 AM »
How much HP is "needed" is a very widely debated topic.

Our first coach, a 1993 Foretravel had the 250 HP Caterpillar 3116.  Sold it with 170,000 miles on it.  When EVERYWHERE.  No complaints.  Did others pass me on long grades-- sure, but my ego was not bruised.

Your question may have two parts-- engine AND transmission.

Many of the low HP Cummins B engines did not come with the excellent Allison 6 speed electronic transmission-- just a smaller 4 speed unit.  To me the transmission is a big part of the decision.  I personally would be happy with the Cummins B as long as it was mated to the Allison 3000.

Offline ByronWhite

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Re: How to buy a used diesel pusher and inspect the engine
« Reply #2 on: February 06, 2020, 11:39:41 AM »
Thanks Brett,
I checked the brochure on the unit and it is a Allison 2000 which is 5 speed from information gathered. It is rated for no more than 300hp. Don't know what you think of this 2000 transmission. The seller claims it will go anywhere and gets 14mpg, Hum? I don't know when your 3000 trans model started.
I am dealing with a woman on RVTraders and she does not share her phone number only email responses. Maybe she is a widow. Very polite and responsive though. Biggest problem, we are in Nashville, TN the unit is near Portland Oregon. Hard to drop in for a visit. Trying to get all info available as possible
2003 Monaco Cayman 32ft.

Offline Brett Wolfe

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Re: How to buy a used diesel pusher and inspect the engine
« Reply #3 on: February 06, 2020, 11:44:54 AM »
The Allison 3000 has been around a very long time.  We had that transmission in our 1993 Foretravel.

Not sure I would rule it out just because of the Allison 2000, but that would not be an asset and the reason the B engine was de-tuned.

14 MPG-- would suggest a very optimistic speedometer or they only drive downhill!  Driven conservatively, it will do 11-12 though.

Brett
« Last Edit: February 06, 2020, 02:36:22 PM by Brett Wolfe »

Offline ByronWhite

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Re: How to buy a used diesel pusher and inspect the engine
« Reply #4 on: February 06, 2020, 12:20:32 PM »
Thanks again
I knew just from campground talk the 14mpg was out in left field. Will keep an eye out for the Allison 3000. Want the greater gear capacity if can get it.

Byron