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Joined: Aug 2003
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Campfire 'Bwana
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OP
Campfire 'Bwana
Joined: Aug 2003
Posts: 39,190 Likes: 33 |
My son just bought a 1985 K5 with the diesel. 42,000 miles on it. Bought it off a collector that was a retired motorpool guy in the Army.
Brand new tires on it. Did the video walk around and for a former National Guard Commo truck - it's very straight and 100% rust free. Some seat tears but that's easy enough. Got the full spare, crank down rear window, blackout light etc.
He's going to run Rotella and Wix with a fuel additive for lubricity.
How tough are these things? Anything super special he should know about? It's not his daily - mostly for fishing around the base and back roads of Georgia.
Me
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Joined: Jun 2006
Posts: 3,223
Campfire Tracker
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Campfire Tracker
Joined: Jun 2006
Posts: 3,223 |
The military designation was M1009 CUCV. Should be able to find out just about anything on the web, including service manuals.
Was basically a stripped down civilian K5, with the diesel, and uprated springs to 3/4ton capacity. So pretty much same strengths and weaknesses of any other 1985 K5, with diesel and dual voltage electrical system thrown in. I'm not very knowledgeable on diesels, so don't know how well it will work with current ultra low sulfur fuels.
If I remember correctly it had glow plugs for starting, so several steps to get it running (something like switch on main power, turn on glow plugs, wait, then start??). Also, they all came keyed the same, so door locks and ignition provided absolutely no security. Had to chain and padlock the steering wheel.
Original electrical system was dual 12/24 volt, so something to keep in mind if not converted to 12V. I've used M1008s, M1009s and M1010s back in the late 80s. Most common problem I recall was getting the charging system set up right to keep batteries charged. My M1010s ate a lot of batteries at first until maintenance figured out the charging problem (and there were two because of the dual voltage setup). The M1008 and M1010 were 5/4ton pickup chassis based, but used same engine as the M1009.
More durable/thicker paint if it still has the original CARC, so that helps keep rust/corrosion down. And if it has the CARC paint wear a good respirator if grinding or sanding on it. Very high solids paint with chromate primer underneath.
And if it was a commo truck, there may still be a metal radio mount in the back with lots of sharp edges and corners to get caught on, and beat up your gear and passengers.
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Joined: Aug 2003
Posts: 39,190 Likes: 33
Campfire 'Bwana
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OP
Campfire 'Bwana
Joined: Aug 2003
Posts: 39,190 Likes: 33 |
It's been converted to 12v
Boy's an Engineer stuck in a non-engineer unit. Spends all day in the motorpool.
The plug operation - exactly right, he showed that in the video last night.
Me
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Joined: Apr 2010
Posts: 8,196 Likes: 4
Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2010
Posts: 8,196 Likes: 4 |
Jerk the POS diesel out and put an Oldsmobile 350 in it. That’s the only GM small block that shares the bell housing with the 6.2. Used to be tons of pickups, Blazers, Jimmy’s, and Suburbans around that had Olds 350s to replace the gutless 6.2s when they went tits up.
Watch the frame where the steering box mounts for cracks, box and plate as needed if it cracks.
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Joined: Feb 2006
Posts: 6,890
Campfire Tracker
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Campfire Tracker
Joined: Feb 2006
Posts: 6,890 |
I agree the 6.2 is probably the worst power plant ever but I must say, I've beat the hell out of more than 1 in the 90's. They still keep going.
Ripped open a Honda civic one time in VA with the brush guard. Cops had the road closed off so our convoy could leave the gas station and the Honda jumped around the cop as I was pulling out. Still drove the CUCV back to lejuene.
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Joined: Feb 2006
Posts: 6,890
Campfire Tracker
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Campfire Tracker
Joined: Feb 2006
Posts: 6,890 |
You can get decent power out of that 6.2 by changing out the injection pump. We did that to all of our TOW HMMWV'S. It's still a naturally inspired diesel but it helps.
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Joined: Jan 2006
Posts: 69,415 Likes: 9
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2006
Posts: 69,415 Likes: 9 |
Did those things have civilian type heaters in them? Back in the 70's, the army hadn't discovered heaters yet. While a bizzilion civilian vehicles had good hot water heaters that would keep you warm way below zero, military trucks had those insane gasoline fired heaters (if any) that were so noisy that you needed to wear ear muffs to be in them.
“In a time of deceit telling the truth is a revolutionary act.” ― George Orwell
It's not over when you lose. It's over when you quit.
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Joined: Jun 2006
Posts: 3,223
Campfire Tracker
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Campfire Tracker
Joined: Jun 2006
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Stock GM heater/defroster. No AC.
Last edited by MikeL2; 04/18/20.
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Joined: Oct 2012
Posts: 1,927
Campfire Regular
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Campfire Regular
Joined: Oct 2012
Posts: 1,927 |
Does it have the 700junk4 auto overdrive trans?
Ken
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Joined: Oct 2012
Posts: 1,927
Campfire Regular
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Campfire Regular
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Jerk the POS diesel out and put an Oldsmobile 350 in it. That’s the only GM small block that shares the bell housing with the 6.2. Used to be tons of pickups, Blazers, Jimmy’s, and Suburbans around that had Olds 350s to replace the gutless 6.2s when they went tits up.
Watch the frame where the steering box mounts for cracks, box and plate as needed if it cracks. The 6.2 diesels have the Chevy bell housing bolt pattern, not the BOP. I believe you are thinking of the 5.7 GM diesels in the late 1970s, that could be replaced with a gasser 350 Olds engine.
Ken
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Joined: Aug 2003
Posts: 39,190 Likes: 33
Campfire 'Bwana
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OP
Campfire 'Bwana
Joined: Aug 2003
Posts: 39,190 Likes: 33 |
Does it have the 700junk4 auto overdrive trans? Unknown - he's been using it to do some minor mud wheeling while accessing new bass ponds on base - in the tank trails/back country areas. He's having a ball with it. I'm a touch jealous.
Me
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Joined: Feb 2006
Posts: 6,890
Campfire Tracker
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Campfire Tracker
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Been a few years but I thought the old cucv's had the "turbo" 400 tranny. The 3 speed .
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Joined: Dec 2002
Posts: 32,228
Campfire 'Bwana
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Campfire 'Bwana
Joined: Dec 2002
Posts: 32,228 |
I "owned" a few of those during the last year or so that I was in the Army. In 1983 we turned in our Jeeps and M880 Dodge commo trucks and drew CUCV Blazers to replace the Jeeps and Chevy pickups to replace the Dodge pickups. The Jeeps and Dodge truck were well worn, but the Jeeps could go places that the Blazers couldn't. The Chevy pickups seemed to be more rugged than the Dodge pickups that they replaced. My M880 Dodge commo trucks cracked the frame just behind the cab. Those commo vans were heavy.
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Joined: Jun 2006
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Campfire Tracker
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Campfire Tracker
Joined: Jun 2006
Posts: 3,223 |
M1009 SpecsTabulated data for the M1009 Truck, Utility, Tactical, 3/4 Ton, 4x4: Engine GM (Detroit Diesel) 379 cu in. (6.2L) J-series non-emissions diesel V-8 engine, 135hp 3600rpm Transmission GM TH400 (Turbo Hydramatic 400) automatic transmission with 3 forward and 1 reverse speeds Transfer Case Manual NP208 Axles GM Corporate 10-bolt front and rear, with 3.08:1 gears, 6-lug. Eaton Gov-Lok in rear diff Curb Weight 5200 lbs (2361 kg) Payload 1200 lbs (545 kg) Towed Load Allowance 3000 lbs (1361 kg) GVW 6400 lbs (2906 kg) Wheelbase 106.5 in (271 cm) Length 191.8 in (487.1 cm) Width 79.6 in (202.0 cm) Height 74.9 in ((190.2 cm) Electrical 12/24 volt dual voltage, 100 amp electrical system Brakes Hydraulically activated, power-assisted front disc and rear drum service brakes, silicone fluid Fording 16 in (40.0 cm) w/o kit Ground Clearance 8.2 in (20.8 cm), rear axle @ GVW Tires 10.00R15LT (Load range C) Steel Belted Radials Tire Pressure 35 psi (241 kPa) front, 35 psi (241 kPa) rear, spare same as rear Fuel Tank 27 Gallons US (102.2 1) liters) Maximum Speeds At Governed RPM High Range 1st 25 mph (40.2 kph) 2nd 35 mph (56.3 kph) Drv 55 mph (88.5 kph) Rev 9 mph (24.5 kph) Maximum Speeds At Governed RPM Low Range 1st 14 mph (22.5 kph) 2nd 23 mph (37.0 kph) Drv 35 mph (56.3 kph) Rev 6 mph ( 9.6 kph)
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Joined: Jan 2003
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Campfire Regular
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Campfire Regular
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Anyone have a pic of one of these?
Thnx
Bob
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Joined: Jun 2006
Posts: 3,223
Campfire Tracker
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Campfire Tracker
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Anyone have a pic of one of these?
Thnx
Bob Use the link above for specs
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Joined: Jan 2003
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Campfire Regular
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Campfire Regular
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Thanks a Mike. Should have thought of that myself.
Bob
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