Cummins swap/frame question
I pulled it off and took it to a local diesel injection specialist for rebuilding. Cost a bit more than I expected, but it was in pretty bad shape internally. Lots of broken bits. Was about to really have an issue.
Truck has been running great ever since I put the reman pump on.
Way more power and torque available than I ever use. Plus, ~25 MPG mixed driving. Have not had it on an extended hiway run to see what it will do when left in OD for a long distance.......
David - Thanks for alerting me to Paul's post. As you know, I don't hang out on FTE anymore.
David - Thanks for alerting me to Paul's post. As you know, I don't hang out on FTE anymore.
Ford Trucks for Ford Truck Enthusiasts
Last edited by Carlene; Feb 12, 2018 at 08:31 PM. Reason: Removed Ref to his Forum
With the recent spells of rather cold weather, I haven't driven it as much as usual. Not because of starting issues, as it fires up no problem. It just takes so long to get the engine up to temp, even after having the block heater running all night. I suspected the engine was gonna be slow to warm up when I drove it thru July and August with no heating issues even without having any sort of engine fan.......
I'm not on here much anymore either. Mostly due to never bothering to get internet service set up at home. I have a tablet at the shop with internet access, which I'm on now, but during the week I am just too busy during the day to do this kind of stuff.
I run a 4" downpipe and front section of pipe that ended ahead of the rear axle back when I first got the truck running/driving. A couple months ago, I took it to a local exhaust shop and they finished the system with a Y that runs dual 3" all the way out behind the rear tires. Twin Prius repellent dispensers! LOL....
The free-flow exhaust and low restriction air filter are all the "performance mods" done to the engine.
I do have a 3200 RPM governor spring in it, but with the throttle cable only opening the throttle about 3/4 of the way, I couldn't wind it that high if I wanted to......
I had a 86 6.2 GM diesel and the only way to get it up to temp when cold out was to drive it and I had a full grille/radiator cover.
Even with it on it would not get up to temp if just sitting and idling.
Plugged in only helped to fire up easier and maybe heat up a little faster.
Dave ----
The truck has been up and running for a year now, give or take a few days. No major issues aside from the injection pump failure previously mentioned.
I absolutely love it. A lot of work went into getting everything needed to make the engine/trans combo fit and function properly, but the result is well worth the time/effort (and money) that went it.
Someday, I may even get around to redoing a couple things that were last minute, make it run "temporary" items. But, they've been performing fine, so they just aren't a priority.
I did (finally) add a cooling fan to the engine about a month ago. Not because I was having any type of heating issues, but because I want to get the A/C plumbed and working. 100+ heat index is very common around here and it would be nice to have the availability of cold air in the cab when desired. Besides, it's kinda hard to hear the radio over the wind noise on the highway. Yes, I *actually* put in a decent radio, for the first time in over 20 years having owned this truck...……
I dunno why, but there's something about a ~40 year old truck, that looks like it has seen plenty of use, having a rather obvious and unusual sounding powerplant that gets lots of looks and questions. I doubt that will ever go away.
I've got a pair of the Cummins fender badges, but never bothered to put them on the truck. When it's parked in a lot, it just looks like any other old truck, until I fire it up. Starting it has caused many neck injuries from guys snapping their heads around so quickly...…...
Closing in on 2 years of driving this truck after the 6bt/nv4500 swap, and the mpg has consistently hovered in the 28-32 range. It really depends on the city/hiway ratio on each tank.
I have not taken a long highway run to see what it can do when left in OD for most of a tank of fuel.
It is rather nice to drive 400 miles and still have the fuel gauge show over 1/4, even with the stock 19 gallon tank. Fueling up usually takes 12-14 gallons, as I never let it go below 1/4 due to the return line no going quite deep enough and air intrusion becoming an issue.













