Acquired a 4wd diesel, not sure what to do with it
#1
Acquired a 4wd diesel, not sure what to do with it
I recently acquired a 1991 F250 ex-cab 4wd 5-speed 7.3 diesel XLT Lariat (what a mouthful!). It's my first such rig, and I like it on its own terms, but not sure what to do with it. It's the newest addition to a fleet comprising a BMW wagon, an old Toyota 4x4, and a P-400.
Unfortunately I had to travel out of state shortly after acquisition, so no pics, but there's nothing remarkable about it anyway. Here's the summary:
- Cracks in the bed and peeling clearcoat, but otherwise straight, rust-free, and reasonably presentable.
- Has a hell of a time starting hot or cold, but runs well once it gets there. Smokes a lot when cold, a little when warmed up.
- Leaking waterpump, oil (probably the cooler), power steering.
- Weak or dead charging circuit, puts out 12.6-12.9V.
- Crazy steering slop, tires down to the cords, sketchy brake booster, otherwise drives well.
- Supposedly has a rebuilt trans and T-case. Horrendous flywheel rattle (I'm told it's a single-mass) but shifts well, no noticable bearing noise.
- A bunch of minor issues (loose mirror, missing hub lock handle, inop parkingbrake, broken seatback tilt, bad turnsignal switch...), nothing severe. I've been doing a ton of homework on these, in particular coming to appreciate the wealth of DIY information on FTE in particular. Some good eggs on here!
One question: is the engine oil dipstick shared with anything else? Mine's missing and I can't find either an OE or non-generic aftermarket.
What to do with this thing?
1. Keep it? If I didn't have the Yota, there'd be no question. This is twice the truck despite returning similar mileage (to a wheezy old 20R) and more comfortable, too. But in seven years there've been maybe five times when I wanted more truck than the Yota, and precisely zero when I actually needed more truck. That's just my work/lifestyle; if I towed goosenecks with bulldozers it'd be a different story. Meanwhile the Toyota has some advantages even before the diesel swap it deserves, and for financial, scheduling, and landlord relation reasons, I'd rather not have four vehicles.
2. Flip it? I'd deal with the most glaring issues - charging circuit, most leaks, fuel lines (likely cause of hard starting), and maybe tires - and expect to get... what, $2k for it? Any ideas? I'm in the PNW; I see $500 parts trucks, $2k semi-beater runners, $7k+ nice examples.
3. Part it out? Would rather not take apart a decent runner with a good body and frame, nor do the work, nor clutter up the back yard (see: landlord), but anyone got ideas of what some worthwhile pieces might fetch? I have no paperwork on the new drivetrain parts.
4. Swap the powertrain into my P400? That one's a motorhome that sees <1000 miles a year. It's powered by a 300 gasser that runs ok, is adequate for the task, and gets 10mpg; 15mpg would save ~$150/year. I'd welcome more torque, biodiesel capability, a much better trans, potential 4wd, and have the tools and skills to do it... but I'm not sure it's worth the trouble.
Thoughts?
Unfortunately I had to travel out of state shortly after acquisition, so no pics, but there's nothing remarkable about it anyway. Here's the summary:
- Cracks in the bed and peeling clearcoat, but otherwise straight, rust-free, and reasonably presentable.
- Has a hell of a time starting hot or cold, but runs well once it gets there. Smokes a lot when cold, a little when warmed up.
- Leaking waterpump, oil (probably the cooler), power steering.
- Weak or dead charging circuit, puts out 12.6-12.9V.
- Crazy steering slop, tires down to the cords, sketchy brake booster, otherwise drives well.
- Supposedly has a rebuilt trans and T-case. Horrendous flywheel rattle (I'm told it's a single-mass) but shifts well, no noticable bearing noise.
- A bunch of minor issues (loose mirror, missing hub lock handle, inop parkingbrake, broken seatback tilt, bad turnsignal switch...), nothing severe. I've been doing a ton of homework on these, in particular coming to appreciate the wealth of DIY information on FTE in particular. Some good eggs on here!
One question: is the engine oil dipstick shared with anything else? Mine's missing and I can't find either an OE or non-generic aftermarket.
What to do with this thing?
1. Keep it? If I didn't have the Yota, there'd be no question. This is twice the truck despite returning similar mileage (to a wheezy old 20R) and more comfortable, too. But in seven years there've been maybe five times when I wanted more truck than the Yota, and precisely zero when I actually needed more truck. That's just my work/lifestyle; if I towed goosenecks with bulldozers it'd be a different story. Meanwhile the Toyota has some advantages even before the diesel swap it deserves, and for financial, scheduling, and landlord relation reasons, I'd rather not have four vehicles.
2. Flip it? I'd deal with the most glaring issues - charging circuit, most leaks, fuel lines (likely cause of hard starting), and maybe tires - and expect to get... what, $2k for it? Any ideas? I'm in the PNW; I see $500 parts trucks, $2k semi-beater runners, $7k+ nice examples.
3. Part it out? Would rather not take apart a decent runner with a good body and frame, nor do the work, nor clutter up the back yard (see: landlord), but anyone got ideas of what some worthwhile pieces might fetch? I have no paperwork on the new drivetrain parts.
4. Swap the powertrain into my P400? That one's a motorhome that sees <1000 miles a year. It's powered by a 300 gasser that runs ok, is adequate for the task, and gets 10mpg; 15mpg would save ~$150/year. I'd welcome more torque, biodiesel capability, a much better trans, potential 4wd, and have the tools and skills to do it... but I'm not sure it's worth the trouble.
Thoughts?
#2
#4
I'm in SE Oregon, and have three F250s, '86 6.9, '91 7.3 Banks turbo, '90 7.5. The flywheel rattle may be the ZF trans. I've had three, and they all had a harmonic rattle under certain conditions.
When I purchased the '90, looking for a dedicated plow truck, I was looking for a diesel, since I already had two. Took 6 months to find this one, better than what you describe you have, but needing plenty of TLC. Drivetrain basically sound. Yours, as a parts truck, is worth at least $1,000, IMHO.
You didn't say what it cost you, but unless you have a need for it,it doesn't seem like it is worth putting into it all that it needs. Based on your description, if I was still looking for a plow truck, I probably wouldn't have been interested. But, again, as a parts truck, or somebody looking for a project......???
When I purchased the '90, looking for a dedicated plow truck, I was looking for a diesel, since I already had two. Took 6 months to find this one, better than what you describe you have, but needing plenty of TLC. Drivetrain basically sound. Yours, as a parts truck, is worth at least $1,000, IMHO.
You didn't say what it cost you, but unless you have a need for it,it doesn't seem like it is worth putting into it all that it needs. Based on your description, if I was still looking for a plow truck, I probably wouldn't have been interested. But, again, as a parts truck, or somebody looking for a project......???
#5
I'm a mechanic, got it as a trade for a bunch of work.
International dealer, huh? Hadn't thought of that, but Picknpull is preferred... Is the dipstick shared with a 6.9 or any gassers?
I just read (here) that this thing has a payload of 3670lb. Why do they call it a 3/4-ton if it actually carries over twice that? Heck, my Yota has carried 3/4 of a ton a few times (exactly those times when I wanted, not needed a big pickup). I've also gathered through forum posts that curb weight is somewhere over 6000lb. What a beast! My P400 is on a 2-ton dually chassis and weighs (slightly) less than that!
International dealer, huh? Hadn't thought of that, but Picknpull is preferred... Is the dipstick shared with a 6.9 or any gassers?
I just read (here) that this thing has a payload of 3670lb. Why do they call it a 3/4-ton if it actually carries over twice that? Heck, my Yota has carried 3/4 of a ton a few times (exactly those times when I wanted, not needed a big pickup). I've also gathered through forum posts that curb weight is somewhere over 6000lb. What a beast! My P400 is on a 2-ton dually chassis and weighs (slightly) less than that!
#6
Join Date: Mar 2005
Location: Marlboro Mental Hospital.
Posts: 60,945
Received 3,090 Likes
on
2,154 Posts
#7
Trending Topics
#8
My F-250 crewcab shortbox with a 460 and E4OD weighs about 6600 lbs with a fiberglass topper and me in it.
As a SuperCab yours would be a little lighter. As a '91 SuperCab yours must be a long box which would be a little heavier. The diesel is probably a little heavier. The ZF5 is probably lighter. And if you don't have a topper your's is probably lighter. So what's the net? I don't know, but probably in the neighborhood of 6500 lbs.
As a SuperCab yours would be a little lighter. As a '91 SuperCab yours must be a long box which would be a little heavier. The diesel is probably a little heavier. The ZF5 is probably lighter. And if you don't have a topper your's is probably lighter. So what's the net? I don't know, but probably in the neighborhood of 6500 lbs.
#9
Join Date: Mar 2005
Location: Marlboro Mental Hospital.
Posts: 60,945
Received 3,090 Likes
on
2,154 Posts
#10
#11
#12
It took just as long to fire after sitting for 20 minutes (ambient temps ~55F) as sitting for a month. Would that still be glowplugs? This is my first 7.3 IDI but hardly my first diesel; can't recall another compression-igniter that would need plugs in such conditions, but I hear these are extra-reluctant...?
#14
No, it sure isn't! I suspect fuel lines leaking air into the system. It may be a coincidence, but during the warm startup process, it fired with a healthy VROOM shortly after my assistant held down the schrader valve at the filter housing while I cranked.
Volkswagen 1Z fired cold with no glowplugs at all as low as 40F. Even at 14F it took only ~3 seconds of glowing.
Mitsubishi 4D55 needed ~1.5 seconds of plugs at ~50F when cold, none when warmed up.
Mercedes OM617 needed ~20 seconds of plugs at ~60F. When warmed up, I don't remember what it wanted, but it was grumpy when I gave it nothing and instead cranked immediately.
Isuzu 4FB1 was something similar, albeit with no glowplug controller.
Volkswagen 1.6IDI... something similar, can't quite remember.
Now that I recall, a Peugeot XD2 wouldn't fire even when warm on a hot day without ~3 seconds of glow time.
Perkins 4.135 (Mazda S2) took ~5 seconds cold at ~60F and needed no glowing when warmed up.
Where should a healthy 7.3 IDI fit in among these (all indirect-injection except the 1Z)? Is the stock glowplug timer to be trusted?
Volkswagen 1Z fired cold with no glowplugs at all as low as 40F. Even at 14F it took only ~3 seconds of glowing.
Mitsubishi 4D55 needed ~1.5 seconds of plugs at ~50F when cold, none when warmed up.
Mercedes OM617 needed ~20 seconds of plugs at ~60F. When warmed up, I don't remember what it wanted, but it was grumpy when I gave it nothing and instead cranked immediately.
Isuzu 4FB1 was something similar, albeit with no glowplug controller.
Volkswagen 1.6IDI... something similar, can't quite remember.
Now that I recall, a Peugeot XD2 wouldn't fire even when warm on a hot day without ~3 seconds of glow time.
Perkins 4.135 (Mazda S2) took ~5 seconds cold at ~60F and needed no glowing when warmed up.
Where should a healthy 7.3 IDI fit in among these (all indirect-injection except the 1Z)? Is the stock glowplug timer to be trusted?
#15
Join Date: Mar 2005
Location: Marlboro Mental Hospital.
Posts: 60,945
Received 3,090 Likes
on
2,154 Posts