| Author | Message | ||
| David Guglielmetti (Daveg)
Registered Member Username: Daveg Post Number: 79 Registered: 2-2009 Posted From: 66.122.182.185  Rating: N/A |
I have a friend with a couple of seated coaches that is considering repowering one of them with a C-12 I have for sale. Both of his current engines are 8Vs, one a 71, one a 92 Anyone have input on what is involved? Thanks | ||
| John and Barb Tesser (Bigrigger)
Registered Member Username: Bigrigger Post Number: 216 Registered: 9-2007 Posted From: 96.42.7.186  Rating: N/A |
I don't know anything about the swap, but I had a c-12 in a quad-axle dump truck set at about 450 hp and it was one of the best most fuel efficient motors I have run. | ||
| Luvrbus (Luvrbus)
Registered Member Username: Luvrbus Post Number: 732 Registered: 8-2006 Posted From: 74.33.54.207 Rating: N/A |
They are too long and tall most guys extend the rear and that doesn't look good to me.But time and cash it can be done. good luck | ||
| George M. Todd (George_mc6)
Registered Member Username: George_mc6 Post Number: 906 Registered: 8-2006 Posted From: 76.171.79.185 Rating: N/A |
One row of six instead of two rows of four, = a lot longer, change the exhaust, fresh air, water in and out, and NO aux drives on the back end of a pussy, so everything would have to be belted off the crank pulley. G | ||
| Ralph Peters (Ralph7)
Registered Member Username: Ralph7 Post Number: 29 Registered: 3-2004 Posted From: 206.251.16.223 Rating: N/A |
About 4-5 years ago I was given a tour of a NEW MCI with a CAT, the driver started it from the rear and it was louder than any DD 2 cycle, and tighter than a MCI-5 with a 8-71,no room in engine comartment. For certain you need a bus oil pan and oil pickup,ground clerance. But there is/was a MCI-8 or 9 near Eau Claire WI. that had a big cam Cummins, and it was not extended also it was a stick shift. | ||
| Jim Shepherd (Rv_safetyman)
Registered Member Username: Rv_safetyman Post Number: 281 Registered: 1-2004 Posted From: 70.59.30.29 Rating: N/A |
The other big issue is the gearing. Four strokes want to run about 30% slower. It would make no sense to go to all the trouble to run a four stroke at 2100 RPM. Brian Diehl did an engine conversion to an ISM in an MCI (http://home.earthlink.net/~diehls0792_1/BusSection10.html). That is a smaller engine that will fit with minimal structural change. Does not help sell your engine, sorry. Jim (Message edited by rv_safetyman on July 14, 2009) | ||
| David Guglielmetti (Daveg)
Registered Member Username: Daveg Post Number: 80 Registered: 2-2009 Posted From: 71.139.244.152 Rating: N/A |
I read the ISM into MCI a while back. The local guy with the four coaches (2 Eagles, 2 MCI 1-8, 1-9) is a friend also, so I was hoping for a win/win deal. Thanks everyone for your input. | ||
| joe padberg (Joemc7ab)
Registered Member Username: Joemc7ab Post Number: 357 Registered: 6-2004 Posted From: 66.38.159.33 Rating: N/A |
David Greyhound here in western Canada has converted some 102A3's with the Cat C10 and also the Cat 3176B mated to a 7 speed manual. Top gear likely overdrive, but not certain. Joe. | ||
| David Guglielmetti (Daveg)
Registered Member Username: Daveg Post Number: 83 Registered: 2-2009 Posted From: 66.122.182.185 Rating: N/A |
Thanks Joe, that is interesting to hear. In my mind, I think the C-12 as of the replacement to the 3176, but could be slightly larger...not sure. I think the Cat C-12 is 49" long from flywheel housing to front pulley. It would be interesting to find out what modifications were done to the 102A3s so that the 3176/7 speed would fit...and what (if any) rear end gearing changes were made...anyone? I might consider a 102A/C3 if I thought the C-12 was a candidate for repower. | ||
| Rob A (Otto)
Registered Member Username: Otto Post Number: 13 Registered: 12-2007 Posted From: 70.76.118.48 Rating: N/A |
Dave, will check with my friends at greyhound here up north.. but I think they had a rad on one side and the charge air cooler on the other btw...my 94 d3 has the cat 3176/7speed and is still my favorite to drive...and it has a 3:73 I'd love to put this in a mc7 or 8 let me know if you do it Otto | ||
| David Guglielmetti (Daveg)
Registered Member Username: Daveg Post Number: 84 Registered: 2-2009 Posted From: 71.139.244.152 Rating: N/A |
Thanks Rob. |