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Topic: U320 questions (Read 703 times) previous topic - next topic

U320 questions

A nube here.  How many miles should one expect from a 2003 U320 before some major engine repairs?  WE are considering the coach that has 67K and claims to have all synthetic oil changes in the genset and motor.  Also are there any special considerations to take in with this coach.  Thanks in advance, David
David & Lou Ann Bouchard
Summer: Mount Vernon, Ohio
Winter: RiverBend Motorcoach Resort  LaBelle, Florida
2003 U320 38' Build #6174 "Willie"
2013 Cadillac SRX Toad
MC #17151 FMCA #F431393

Re: U320 questions

Reply #1 –
B50 (age at which half would need overhaul) for the ISM is listed as 750,000 miles. Should be even longer in a motorhome, which is VERY light duty for this engine-- it is used to pulling 80,000 pounds.

http://www.frontier-intl.com/Big%20Bore%20Comparison%20Guide.pdf
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: U320 questions

Reply #2 –
Retired Chief, not to worry you will wear out before the motor transmission and drive axle will, as long as you do the proper service on it.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: U320 questions

Reply #3 –
Prolonged storage is the only thing that can appreciably shorten the lives of these otherwise very durable drive trains if recommended service is completed.  Synthetic lubricants are fine so long as they are not used to extend change intervals without analysis.
Regards,
Brett

'99 42' Foretravel Xtreme
'14 Brown Motorsports Stacker
'05 Chevy SSR
'02 BMW R1150R
 

Re: U320 questions

Reply #4 –
I bought an 2000 U320 with 117K miles on it and didn't give it a second thought.  Fear not :)