| Author | Message | ||
| marvin pack (Gomer)
Registered Member Username: Gomer Post Number: 1016 Registered: 3-2007 Posted From: 71.55.1.12  Rating: N/A |
I found some n-70 injectors that were rebuilt and have set for a good while. Question I have c-60's in an8V-71 and they need to be redone or replaced. what is my good, kind,friendly,knowledgable Bus nut friends think I should do. I believe I can get the 70,s pop checked for a little of nothing also. Gomer | ||
| Jim Wilke (Jim Bob) (Pd41044039)
Registered Member Username: Pd41044039 Post Number: 569 Registered: 2-2001 Posted From: 184.0.3.170  Rating: N/A |
Gomer, I'd have 'em checked & go with them. They are probaby fine as is but such a pain to R & R & run the rack that I wouldn't to take a chance. Unless you want to become proficient at tuning up Detroit 2 strokes! | ||
| marvin pack (Gomer)
Registered Member Username: Gomer Post Number: 1017 Registered: 3-2007 Posted From: 71.55.1.12 Rating: N/A |
JimBob; I haven't had any problem with tune-up for DD's. I have all the tools,gauges and settings even DA Book LOL.. Thanks for the info. gomer | ||
| Ralph Peters (Ralph7)
Registered Member Username: Ralph7 Post Number: 153 Registered: 3-2004 Posted From: 75.206.10.206 Rating: N/A |
I had 70's in my non turbo 8-71 with automatic, they smoke during lead foot, also 70's are used for industral, gen, pumps, etc. My coach ran East coast, if it ran out West on big hills lots of smoke. If your 8-71 is advanced timming and in good shape, 325HP. Yes get those injectors popped, even fresh rebuilt injectors have problems. Now I have a 8-71TA @375HP. | ||
| Mark Renner (Boomer)
Registered Member Username: Boomer Post Number: 226 Registered: 11-2006 Posted From: 206.58.200.38  Rating: N/A |
I would advise not going bigger than N65 in your application. The only noticable difference with the 70's would be more fuel burn. | ||
| Bill Gerrie (Bill_gerrie)
Registered Member Username: Bill_gerrie Post Number: 386 Registered: 3-2006 Posted From: 216.198.139.38  Rating: N/A |
Marvin Your engine with C-60's will be standard timing. Anything over 65's requires advanced timing which means getting at the rear gear train. Not easy unless you are doing a rebuild. They will work in your engine but blow a lot of black unburned fuel out the pipe. Maybe someone will swap you a set of 60's in good shape as they are rebuilding their engine and want larger injectors. Bill | ||
| Tom Christman (Tchristman)
Registered Member Username: Tchristman Post Number: 259 Registered: 1-2006 Posted From: 66.218.33.156 Rating: N/A |
The C60's are perfectly matched for the wide gear spacing of the 4spd manual. The peak torque on the C60's is rated at 1200rpm. With 65 and larger on a non turbo engine, the torque is rated at 1600rpm. You'll get alot of smoke (I had brown tag N65's in mine and didn't like driving above 5,000ft). Keep the C60's. Only go larger if you're going to install a turbo-and I can tell you from personal experience that turbocharging the 8V-71 REALLY wakes it up and makes driving much more pleasurable. I don't understand anyone that replaces the 8V-71 with a 6V-92. Good Luck, TomC | ||
| marvin pack (Gomer)
Registered Member Username: Gomer Post Number: 1018 Registered: 3-2007 Posted From: 71.55.1.12 Rating: N/A |
My engine has a VS-2 auto with it and I have a couple of injectors that want to spit and maybe just need cleaning . Thanks so far for the input guys. Gomer |