| Author |
Message |
John M. (216.166.161.104)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, February 26, 2002 - 7:48 pm: | |
Is a 6v71 engine always the same. I have an MCI5C
and would like to by a spare engine. I have noticed several auctions near where I live that have dump trucks with 6v71 engines for sale. Would
one of these be a good candidate for a spare engine for my converted bus? John |
Fred B. Batie (Fred) (216.231.139.45)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, February 26, 2002 - 8:24 pm: | |
I think that a 6-71 is an inline engine you probably have eather a 8v71 or a 6v92. most dump truks have had a hard life
fbb |
Jayjay (207.30.115.20)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, February 26, 2002 - 9:20 pm: | |
If you can get it "right", ...sure. Bought cheap and rebuilt would be a good way to go. Cheer...JJ |
John Rigby (152.163.195.178)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, February 26, 2002 - 9:35 pm: | |
John,you would be better looking for a 8v71 as this engine has lots more mains bearings. Due to less mains bearings the 6v92 is not as stong an engine .Know some history on any used engine you buy
John |
Dave Wheat (24.158.28.11)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, February 26, 2002 - 11:09 pm: | |
John M: There are both an inline 671 and a 6v71. Our company has a MC5 with a 6v71 with automatic. Many MC5's came with 8v71's and straight stick.
Dave W. |
Scott Whitney (66.214.66.193)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, February 27, 2002 - 3:08 am: | |
The original post said he had a 6V71, not a 6-71. Why not pick-up a barain exact replacement on auction? If I had space to store one and came across a great deal, I'd probably have a spare around.
Also, there are RH and LH rotations, so make sure any engine you buy spins the correct way. I presume you have a RH engine.
Scott |
Buswarrior (Buswarrior) (64.229.215.194)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, March 03, 2002 - 6:28 pm: | |
Hello John.
As noted, be very careful to get an engine that spins in the proper direction for YOUR bus. Lots of folks don't know that your MC5 is a T-drive. If they tell you they have a 6V71 bus engine, it probably came out of a V-drive transit bus, and spins wrong for you.
Be sure to check with your local engine place for pricing of a fresh engine. 6V71 are pretty inexpensive, relatively speaking. All the fuss of removing it and then dealing with the scrap donor vehicle might not make it worth it to you.
happy coaching!
buswarrior |
Buswarrior (Buswarrior) (64.229.215.194)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, March 03, 2002 - 6:35 pm: | |
And John...
Sorry, missed a point relating to one of the other posts:
If you didn't know, you can't fit a V8 into an MC5 with an automatic, without a mess of re-engineering of the back end of the bus. Not enough room between the bumper and the differential. Manual transmission is shorter and will let a V8 fit.
I have heard that 6V92 turbo change-overs have been successfully attempted, if you feel the need for more power.
happy coaching!
buswarrior |
RJ Long (24.127.8.58)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, March 06, 2002 - 1:32 pm: | |
John -
As you are aware, the 6V71 is a little short on power. Good engine if you're primarily doing airport shuttle work. . . or want to be passed by VW buses climbing 6% grades.
Best swap for the 5C is a 6V92TA, tuned for 350 hp.
You'll have to reposition the turbo and it's associated plumbing, but it will work.
Don't forget to upgrade the radiators, too!
An 8V71/AT combo is possible, but you have to use the smaller MT643 Allison, rather than the more robust HT740 series.
HTH,
RJ
PD4106-2784
Fresno CA |