Junkyard Digs: $300 Olds Delta 88
Posted: Fri Feb 01, 2019 7:17 pm
This is sweet.
https://youtu.be/5pPEUCCPZQc
https://youtu.be/5pPEUCCPZQc
Don't be a tool, repair it.
https://forums.kevinallenmoore.com/
I'd say that was worth diagnosing considering 1800 miles. Oh well, it made it anyway.3rd World Garage10 hours ago (edited)
I used Marine weld on all my welch plugs and it fixed them. However, the bad mileage is due to the check engine light being on. On a car of this age, it throws it into open loop mode and kills the mileage. You probably gave up 8-10 highway mpg by not fixing the issue. It throws it into a base timing setup that has no advance and runs the MC solenoid rich. If you were not far away I would bring my GM service manuals and diagnose it for you just for the fun of it. I actually drove these things when they were common cars and learned to get that archaic computer controlled Quadrajet working properly. I actually still have the car I learned it on, but without the computer controls. I used a standard Quadrajet and HEI instead. You lose the torque converter lockup, but it is easier to tune. Also, you can run ethanol gas in it if you use Stabil 360 Marine in the fuel, failure to do so will clog the carb with magnesium oxide as ethanol corrodes the magnesium body very quickly. And yes, it is magnesium and not aluminum!
The CCC system worked well. With the electronic carb and distributor working an honest low 20s was doable. There was no ethanol to water down gasoline 10-15 yars ago though.
There's a guy that had a buick with the olds 307 and he got 24mpg highway with over 300k miles on YouTube back pre google days. Bugar was his screen name. Oldsmobile engines are much more reliable than SBC of same time. Probably nearly reliable as an 80s- early 90s EFI Ford Windsor v8 if I'm being honest.
Cadillac had fuel injection at this time but B-bodies didn't get it until 89, except for the TBI 4.3L V6 in 85 as a base engine. I think Adam knows all about the CCC stuff. I guess our 83 Caprice with 305 had it. Or did it?The computer also controls the ignition advance, cruise, converter lockup (if you’ve got the th200r4 trans) and on Oldsmobiles it disables the A/C compressor at wide open throttle. You’ll have to find a replacement ECM from another olds since the other B Body CCC systems didn’t disable the A/C clutch. You’ll also need to swap in the PROM chip from your failed ECM. If you’d rather ditch the CCC system you’ll need a non CCC carb, vacuum advance distributor and lockup kit for the trans. You’ll lose the cruise control. I’d keep the CCC and fix it up. It can work well.