Cummins Conversion Update
Wiring is almost done. Just need to hook up the OBDII port and loom everything. Otherwise, all connections are soldered and it's ready for the batteries to go back in and get those cables run.
I also picked up a 6637 at NAPA today, since my AFE won't be here till the end of the week, I needed it to test fit, and I figured I could use it when I clean the AFE. Looks like it's going to fit, barely though. It's a tight squeeze, and I'm using 2 90* rubber elbows, a 45* rubber elbow, and a 45* aluminum elbow. I'm going to have to trim one of the 90's a little shorter on one side, and cut down the aluminum 45 quite a bit, but everything should fit.
Also picked up my flex pipe and clamps to get the exhaust finally hooked back up. I'm going to tackle all that stuff tomorrow. I got a late start today because Jeff needed some help moving a few things this morning, and now I'm off to his house for some dinner and to watch the Bristol race.
More pics tomorrow.
I also picked up a 6637 at NAPA today, since my AFE won't be here till the end of the week, I needed it to test fit, and I figured I could use it when I clean the AFE. Looks like it's going to fit, barely though. It's a tight squeeze, and I'm using 2 90* rubber elbows, a 45* rubber elbow, and a 45* aluminum elbow. I'm going to have to trim one of the 90's a little shorter on one side, and cut down the aluminum 45 quite a bit, but everything should fit.
Also picked up my flex pipe and clamps to get the exhaust finally hooked back up. I'm going to tackle all that stuff tomorrow. I got a late start today because Jeff needed some help moving a few things this morning, and now I'm off to his house for some dinner and to watch the Bristol race.
More pics tomorrow.
Looming and running the wires neatly took a lot longer than I had anticipated, so I didn't get quite as much done as I had hoped to over the weekend, but it was some pretty good progress nonetheless.
Good news is, wiring is completely done in the engine bay. That includes all the connections for the engine, the Autometer gauges, the stock Ford gauges, the fan wiring, and the wires from the sensors to the PCS. It was close to dark when I got done with that, so the OBDII port is not hooked up yet (much easier to do in the daylight), but the wires for it are run into the cab. Removing the inner fender made accessing the wiring a lot easier.

Exhaust is completely done. Used a piece of flex tubing to connect the MBRP downpipe to the rest of my exhaust system.

Got my air filter & intake test fitted as well, so I can take the 45* aluminum elbow to a welder this week and have a flat piece put on it where I'll mount the AIT sensor. It took some trimming of the intake tubes and rubber elbows, but I think it turned out well. A couple of 90* rubber elbows off the turbo, a 45* polished aluminum elbow, and a 45* rubber elbow put the filter right where I wanted it.

Tomorrow I'm going to try and get the OBDII port for the Cummins wired up, get the battery tray in place and secure the batteries down, get the motor mounts drilled and secured, and maybe get the radiator flushed & the front end back on. I'm hoping to get the battery cables run on Tuesday or Wednesday & get my power distribution block hooked up, and I still need to mount my coolant filter on the backside of the front bumper, once the bumper is back on. Really, that's about all I can do until I get the rest of my parts in.
Good news is, wiring is completely done in the engine bay. That includes all the connections for the engine, the Autometer gauges, the stock Ford gauges, the fan wiring, and the wires from the sensors to the PCS. It was close to dark when I got done with that, so the OBDII port is not hooked up yet (much easier to do in the daylight), but the wires for it are run into the cab. Removing the inner fender made accessing the wiring a lot easier.
Exhaust is completely done. Used a piece of flex tubing to connect the MBRP downpipe to the rest of my exhaust system.
Got my air filter & intake test fitted as well, so I can take the 45* aluminum elbow to a welder this week and have a flat piece put on it where I'll mount the AIT sensor. It took some trimming of the intake tubes and rubber elbows, but I think it turned out well. A couple of 90* rubber elbows off the turbo, a 45* polished aluminum elbow, and a 45* rubber elbow put the filter right where I wanted it.
Tomorrow I'm going to try and get the OBDII port for the Cummins wired up, get the battery tray in place and secure the batteries down, get the motor mounts drilled and secured, and maybe get the radiator flushed & the front end back on. I'm hoping to get the battery cables run on Tuesday or Wednesday & get my power distribution block hooked up, and I still need to mount my coolant filter on the backside of the front bumper, once the bumper is back on. Really, that's about all I can do until I get the rest of my parts in.
I'll keep an eye on the flex. I've got a piece of it in the back too, connecting everything to my stacks. It's been on there for 3+ years and is doing well though. If it does go bad, I've got plenty of clearance with the downpipe to have it shortened, up closer to the turbo. That would allow me to rearrange things a little bit so a solid piece off the back of the downpipe would not hit the trans crossmember. I would have to have the hangers shortened and a couple other things that would take some extra time, and that I don't have the tools for either.
Could you pm me the issues you had with it? I don't want to muck up this thread. I'm using the same stuff. It's the same as the big trucks use.
It's the location, in Jeremy's application, where the fex-pipe will be seeing more movement off the downpipe than with the piece eating the floatation of the bed (far less movement).
On edit: in a nutshell, this sorta flex-pipe is made to flex, not twist.
I tried not to use the aluminized steel. I asked the truck shop where I got it for a piece of stainless flex, but they would have to order it in, so I just took what they had. At least I know if this one every breaks, I can go get a piece of stainless from them.
Edit: Jet, is there a flex pipe that can twist a little bit and be ok? I'm thinking the ones that are braided stainless maybe could?
Edit: Jet, is there a flex pipe that can twist a little bit and be ok? I'm thinking the ones that are braided stainless maybe could?
Man, we are on the cusp of......excitement.
I pretty much agree with the flex pipe comments. They are usually fine from what I have seen where both pipes are securely mounted to something and just need a coupling. I don't think the flex is good as a stress bearing unit at all.
Looking good Jeremy.
I pretty much agree with the flex pipe comments. They are usually fine from what I have seen where both pipes are securely mounted to something and just need a coupling. I don't think the flex is good as a stress bearing unit at all.
Looking good Jeremy.
Now the twisting from Jeremy's bad arze cummins might be an issue. J/K Jeremy.
And in my case

It's been facinating to follow your progress, that's for sure.



how bout a vid