| Author |
Message |
rdub
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 21, 2004 - 4:33 pm: | |
For those of you who have had experience with the Series 50 engines, I'd like some input. I'll be cruising with one pretty soon and a little education can go a long way. It's a DDEC and hooked up to a VR731R. Thanx, Rdub |
Jimmy
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 21, 2004 - 7:10 pm: | |
The pedal on the far right if depressed will make you go faster. The pedal to the middle of it, is for stopping. You press down.
Jimmy |
Tim Hoskinson (Tdh37514151)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 21, 2004 - 10:12 pm: | |
Hi Rdub were you able to overcome your leaf spring mount problem ok? When you get a chance e mail me and let me know how things are going. I am working on my modifications on the first 3751 and am thinking ahead to a second already. I have been thinking about something you ask me if the 4151 had a front axle like a 4104. They do not but after looking it over it may be possible to use one and incorporate the power steering in this way. You would of course have to use the steering box and input shaft of the 4104 style. |
Bill Gerrie
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, October 24, 2004 - 8:01 pm: | |
Rdub
I am currently working on a 6V92TA with V731. They run DDECIV and ATEC. I have been working on the wiring hookups for quite awhile and it is a lot of fun. What version of DDEC are you running? Bill |
Buswarrior (Buswarrior)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, October 27, 2004 - 6:31 pm: | |
Hello rdub.
You won't be sorry about that drive train!
It does make a bit of rumble and vibration at idle, but shouldn't be a big problem for a busnut.
The only thing that might frustrate you is how the previous owners had the computers programmed for transmission shift strategy, retarder engagement and power deliver strategy for the engine.
These things are not well understood by many fleets, including some of the biggest transit operations on the continent. And a warning: Your local DD dealer may not either.
Do not let someone else's ignorance get in the way of you getting your drive train to perform the way you would want it to, if you knew what to ask for!!!
You want to do some reading about the variables that you can have programmed. If you are talking to anyone, DD reps, not dealers, or engineers at the trade shows are better bets on accurate info, and may have personal knowledge of messing with your drivetrain for the purposes you intend to use it for, or may be interested enough to provide some free assistance for their own entertainment!
You may want to figure out how to have your cake and eat it to. Is there a way to get it to behave different ways, with little added in the way of controls? Sky is the limit with this newer technology, along with some creative thinking.
Conflicting goals of fuel economy, power, brake life, engine and tranny temps, ride quality under acceleration for passengers, emmissions and visible smoke are some of the influences.
Be sure to share your learning, not a lot of us into the realm of higher technology yet!
happy coaching!
buswarrior |
rdub
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 28, 2004 - 7:57 pm: | |
Thanx for all the replies so far. The engine and trans are in position. The assembly is installed using portions of the RTS cradle and, of course, the rubber mounts. (Tim) We overcame the spring shackle clearance problem by building a boxframe bulkhead that transverses the rear of the bus and ties both mounts (sides) together. The engine is hung using part of the original mount system and can be dropped out just like most conventional engine packages. The right spring pivot pin shackle bolts to the bulkhead assembly. There is a semi-circular cutout in the bulkhead for the drive shaft. Next step is to install a RTS rear axle housing and swap out the ring and pinon for a 4.11 ratio which will hopefully give a 75+ mph top end and an 1800+/- rpm cruise. (Bill)I'm looking forward to the programing possibilities with the DDEC III/IV (1993 model) and ATEC. Several "experienced" bus nuts have expressed their cynicism regarding the DDEC but I'm hopeful that reliability will not be an issue. (Buswarrior) Thanx for your encouragement. I'd say I'm about a month away from the test drive with the new engine, trans and power steering. I'll stay in touch. Rdub. |
Bill Gerrie
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 28, 2004 - 11:58 pm: | |
Rdub
We just finished wiring up a 6V92TA DDECIV for a friend of mine and if all goes well will be on a test drive next week. I am curious where you got a wiring diagram for the DDECIV to ATEC. These units were not run together. The ATEC was run with DDECII. I am doing mine (DDECIV to ATEC) next year as I am going in for double knee replacement in a couple of weeks. I bought the PRO-LINK PLUS to set up everything but now I have read the books to learn how. These units are very reliable once set up from what I have been told. Good luck and if you want email me as I would love to hear how you make out. Bill |
Rdub
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 30, 2004 - 11:24 am: | |
Bill,
I'm a little embarrassed to admit I'm not "sure" my DDEC is a III or IV. I've assumed that since it is a 1993 engine it has the later unit. We haven't wired the ATEC and DDEC yet so your comment may be a "heads up" for the future. We have the computer and software to set it up and the mechanic has experience so I'm hoping all will work out. The next 3-4 weeks will move slowly as I await the sucessful outcome of this project.
Good luck with the knees...I know how it is... I've put off that "project" for a little while for myself. Rdub |
Bill Gerrie
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, October 31, 2004 - 12:52 am: | |
Rdub
We are going to try to start the one 6V92TA DDECIV on Monday. He is using the V730 so it was a lot simplier then mine will be. If you have all the plugs on the DDEC box on one end then it is a DDECII. If the plugs are on both ends then it is either a III or IV. It is on the back of the box along with the serial number. I'm not sure but I thought that DDECIII came out in 1995 but it could be like ours. Our motors are 1990 but they have been upgraded to DDECIV. Email me the results as this post is getting old. Thanks. Bill |