Serpentine drive belt

[monacosquire]

I have a 2006 Monaco Diplomat fitted with a Cummins ISL400 engine.I have been carrying 2 replacement belts as spares as listed in the handbook documentation - 1 serpentine belt to drive the water pump and alternator via a tensioner and a notched v belt to drive the air con unit via the water pump.However, it turns out after the alternator seized that i have only one serpentine belt which drives all the pulleys. The belt is missing so i have no length to measure and no idea as to the belt configuration through the pulleys. The belt is approx 28 mm(1.125 inches) wide with 8 ribs.Is there anyone can help please with a similar set up. As i live in the UK information is not easy to obtain.

[Twomed]

My 2006 ISL 400 with the two belt setup uses a Dayco 5080690. You may also find it listed as a Cummins part # 3289257 both are serpentine belt numbers.

Hope this helps.

This crosses to a NAPA #25080690 or same number with HD on the end about $10US more for the HD (heavy duty}

Good Luck

[ArmyEOD]

This may help you out, take a peice of line/small rope and install it on all your pullys including the tensioner. Then measure the line, subtact and inch or so for the tensionor to adjust to. Sorry I can not give you a part number. Also, you might call monaco with the coach ID number and they should be able to help you to.

[walt2137]

Quote:

Originally Posted by monacosquire I have a 2006 Monaco Diplomat fitted with a Cummins ISL400 engine.I have been carrying 2 replacement belts as spares as listed in the handbook documentation - 1 serpentine belt to drive the water pump and alternator via a tensioner and a notched v belt to drive the air con unit via the water pump.However, it turns out after the alternator seized that i have only one serpentine belt which drives all the pulleys. The belt is missing so i have no length to measure and no idea as to the belt configuration through the pulleys. The belt is approx 28 mm(1.125 inches) wide with 8 ribs.Is there anyone can help please with a similar set up. As i live in the UK information is not easy to obtain.

Send me the coach S/N last 6 digits (not chassis) should be by the door or just to the left of the driver on the wall and I will call Monaco Tec service for you tomorrow afternoon after I get home.
My E mail is walt2137@yahoo.com if you had rather e mail me.

[RVThere]

Here is the routing diagram for my ISL 400 that Freightliner emailed me when I had the same problem.

[nodine]

Quote:

Originally Posted by monacosquire I have a 2006 Monaco Diplomat fitted with a Cummins ISL400 engine.I have been carrying 2 replacement belts as spares as listed in the handbook documentation - 1 serpentine belt to drive the water pump and alternator via a tensioner and a notched v belt to drive the air con unit via the water pump.However, it turns out after the alternator seized that i have only one serpentine belt which drives all the pulleys. The belt is missing so i have no length to measure and no idea as to the belt configuration through the pulleys. The belt is approx 28 mm(1.125 inches) wide with 8 ribs.Is there anyone can help please with a similar set up. As i live in the UK information is not easy to obtain.

Althrough I have not replaced it yet so can't be absolutly sure it will fit, I carry a NAPA part# 080830 Micro-V belt. I was told that it would work. I believe it is actually made by Gates and the number on the belt is 761078V5.

Bob

[William Willard]

We have a 07 Camelot with the side radiator -- The belts are easy to change on these models -- I purchased both the serpertine & v belt that was listed in the owners manuel to be used as spares -- One day I decieded to change the belts, & keep the old ones for spares -- Glad I did the change -- Neither belt would fit -- So don`t go by what`s in the book -- It also had the wrong hydraulic filter listed -- Bill Willard

[Barlow46]

Bill is right on the money. Based on information I received on this forum, I bought new belts and put both of the new ones on immediately and saved the old ones for the spares. That way, I was sure they fit.

[Diplomat Don]

monacosquire......"RVThere" gave you a nice drawing of the routing. My picture is drawn on a piece of cardboard with a pencil.

Bob....your Napa part number is correct. When I changed out the radiator and CAC last year, I also had the two belts listed in the manual. I went to Napa and they crossed the original to your part number. I've been running that belt for over 5000 miles.

The tensioner/idler is in the upper middle of the diagram and is easy to move and release the tension.

[monacosquire]

Many thanks to you all for your assistance.Between you,i now have all the information to allow me to get the coach back up and running.
Thanks again

Richard.