Is it worth it? 79 F700 with a 370
#1
The following 3 users liked this post by neokane:
#2
#4
Valve cover sticker says "EGR/AIR" and there's an empty accessory bracket on the right side where the A.I.R. pump would likely have been, so no air pumped to the exhaust to passively burn off extra fuel, esp. during decel. AIR was a cheap, low-downside way of cleaning up unburned hydrocarbons in the exhaust without having to resort to expensive catalytic converters and precise fuel control (ie fuel injection, mainly). It looked ugly because of the belt-driven air pump -- that used almost no HP -- and generally a lot of plumbing to route the air to each exhaust port (on the later models), so people removed it and all the plumbing a lot of the time, thinking they'd get better something -- fuel economy, power, something -- but none of that would happen. A good system, just ugly.
EGR dilutes the intake with exhaust, which reduces peak combustion pressure and therefore reduces NOx emissions. The engine will be tuned to operate that way, and if you just disable EGR it'll typically ping due to the over-advanced timing curve that is supposed to match the EGR conditions. EGR definitely costs (part throttle) power, and after the engine gets tired and starts having dirtier exhaust with oil residue, that starts to gunk up the intake too. It was a stopgap for NOx reduction until better tech came along a couple decades later, mainly 3-way cats.
You can disable the EGR but you often have to either re-curve the mechanical distributor advance or just retard the base timing to prevent pinging and/or detonation. It was a common thing back in the day. It's a compromise no matter what you do.
IDK, that real dump bed, good appearance, and Dayton style wheels . . . I don't think $6k is unreasonable. Depends on your local market, of course.
I gave $2700 for a '73 F600 with a hoist (not a real dump bed like yours) and I regret it, as my spreadsheet on it is now well over $6k and I'm still not driving it. I'd much rather have started with something like yours.
EGR dilutes the intake with exhaust, which reduces peak combustion pressure and therefore reduces NOx emissions. The engine will be tuned to operate that way, and if you just disable EGR it'll typically ping due to the over-advanced timing curve that is supposed to match the EGR conditions. EGR definitely costs (part throttle) power, and after the engine gets tired and starts having dirtier exhaust with oil residue, that starts to gunk up the intake too. It was a stopgap for NOx reduction until better tech came along a couple decades later, mainly 3-way cats.
You can disable the EGR but you often have to either re-curve the mechanical distributor advance or just retard the base timing to prevent pinging and/or detonation. It was a common thing back in the day. It's a compromise no matter what you do.
IDK, that real dump bed, good appearance, and Dayton style wheels . . . I don't think $6k is unreasonable. Depends on your local market, of course.
I gave $2700 for a '73 F600 with a hoist (not a real dump bed like yours) and I regret it, as my spreadsheet on it is now well over $6k and I'm still not driving it. I'd much rather have started with something like yours.
#5
#6
Welcome to FTE!
F70 = F700 gas
A = 370 2V gas V8
V = Kentucky Truck Plant
DH0599 = 1979 numerical series, probably late '78 production.
158 = 158 inch wheelbase
M = White
F704 = F700 gas, 24,000 lbs GVWR
4A8
4 = Usually black vinyl. I don't have a decoder ring for '79
8 = Standard cab, cab and chassis vehicle
M = Clark model 285V five speed direct transmission
E3M
E3 = Eaton model 16244 two speed rear axle, 17,500 lbs capacity, 6.50 / 9.04 ratios
M = Ford 7,000 lb capacity front axle with power steering
24000 = 24,000 lbs GVWR
87 = Body Company. Almost certainly sold to whoever put that dump body on it, who in turn sold it to someone else. Probably.
A very good basic truck. 5 & 2 will make the 370 pull that 24,000 lbs. Slow, but it will work.
Condition looks great.
In addition to the AIR system mentioned above, it also appears the EVAP system is all disconnected. That could mean fuel fumes in the engine compartment, or a vacuum leak, or something else. A review of the fuel take venting might be a good idea.
The front wheels are 22.5 tubeless, but the back are 20s.
A dump body is great for gravel etc but limits what you can easily do with the truck. A dump bed like @asavage has is more versitile. My dad the 14' bed and several sets of side racks for various items from gravel to strawberries.
F70 = F700 gas
A = 370 2V gas V8
V = Kentucky Truck Plant
DH0599 = 1979 numerical series, probably late '78 production.
158 = 158 inch wheelbase
M = White
F704 = F700 gas, 24,000 lbs GVWR
4A8
4 = Usually black vinyl. I don't have a decoder ring for '79
8 = Standard cab, cab and chassis vehicle
M = Clark model 285V five speed direct transmission
E3M
E3 = Eaton model 16244 two speed rear axle, 17,500 lbs capacity, 6.50 / 9.04 ratios
M = Ford 7,000 lb capacity front axle with power steering
24000 = 24,000 lbs GVWR
87 = Body Company. Almost certainly sold to whoever put that dump body on it, who in turn sold it to someone else. Probably.
A very good basic truck. 5 & 2 will make the 370 pull that 24,000 lbs. Slow, but it will work.
Condition looks great.
In addition to the AIR system mentioned above, it also appears the EVAP system is all disconnected. That could mean fuel fumes in the engine compartment, or a vacuum leak, or something else. A review of the fuel take venting might be a good idea.
The front wheels are 22.5 tubeless, but the back are 20s.
A dump body is great for gravel etc but limits what you can easily do with the truck. A dump bed like @asavage has is more versitile. My dad the 14' bed and several sets of side racks for various items from gravel to strawberries.
#7
Trending Topics
#8
#9
#10
The old test drive, test shift, test brake, test start and test dump will tell the tale.
On the '73 that hoist does look a little scary and I'd like to inspect that more closely as the weld doesn't look right. Plus the rust.
The intake is always hard to seal at the ends. The recommended method is a bead of sealer on the ends--no gasket.
That '73 also has a governor setup on the distributor and a tach drive. But no governor on the carb, so......
Your brake drum situation will be easier to deal with on the '79 because of the Dayton style wheel. Chances are you'll never need them but.....
On the '73 that hoist does look a little scary and I'd like to inspect that more closely as the weld doesn't look right. Plus the rust.
The intake is always hard to seal at the ends. The recommended method is a bead of sealer on the ends--no gasket.
That '73 also has a governor setup on the distributor and a tach drive. But no governor on the carb, so......
Your brake drum situation will be easier to deal with on the '79 because of the Dayton style wheel. Chances are you'll never need them but.....
The following users liked this post:
#12
As @asavage said, he is 6k into a 73 and hasn't driven it yet.