New to GM - Carb Issues
#1
New to GM - Carb Issues
I'm an old Mustang guy (sorry). Havent worked on anything newer that 1968 or anything without OBDII. My son came home with an 86 Z28. Looking under the hood, It doesn't appear to have the correct carburetor. At idle, a buzzer sounds and the service engine light flashes. Any advice would be truly appreciated
Linkage
Left side
Right Side
Linkage
Left side
Right Side
#2
Sponsor
iTrader: (92)
Re: New to GM - Carb Issues
The check engine light is on because you do not have a computer controlled carburetor anymore.
The linkage looks like it's from a manual transmission application.
Or you're just missing this stud.
https://m.summitracing.com/parts/edl-8018
The linkage looks like it's from a manual transmission application.
Or you're just missing this stud.
https://m.summitracing.com/parts/edl-8018
Last edited by Tuned Performance; 02-18-2017 at 12:17 PM.
#3
Sponsor
iTrader: (92)
Re: New to GM - Carb Issues
Because there is no large opening on the TV cable this dead may work instead.
https://m.summitracing.com/parts/edl-8009
https://m.summitracing.com/parts/edl-8009
#4
Re: New to GM - Carb Issues
I am pretty sure that this is not the carb that the car started life with. I found the casting number, 7045202. What is the correct carb for this car?
#5
Sponsor
iTrader: (92)
Re: New to GM - Carb Issues
It's from a 75 Chevrolet,
Since somebody changed a non-computer controlled carburetor, they may have swapped out the HEI distributor.if the distributor has a flat for wire plug it's a computer controlled distributor. If it has a vacuum advance then it's for a non-computer controlled application.
Since somebody changed a non-computer controlled carburetor, they may have swapped out the HEI distributor.if the distributor has a flat for wire plug it's a computer controlled distributor. If it has a vacuum advance then it's for a non-computer controlled application.
#6
Re: New to GM - Carb Issues
It's from a 75 Chevrolet,
Since somebody changed a non-computer controlled carburetor, they may have swapped out the HEI distributor.if the distributor has a flat for wire plug it's a computer controlled distributor. If it has a vacuum advance then it's for a non-computer controlled application.
Since somebody changed a non-computer controlled carburetor, they may have swapped out the HEI distributor.if the distributor has a flat for wire plug it's a computer controlled distributor. If it has a vacuum advance then it's for a non-computer controlled application.
Thank you all for the help. Ordering the AUTOLINE C9652 from Rock Auto. Pretty sure this is the stock distributor
#7
Supreme Member
iTrader: (7)
Join Date: May 2004
Location: Lexington, SC
Posts: 5,291
Likes: 0
Received 58 Likes
on
52 Posts
Car: 1987 SC/1985 TA
Engine: 350/vortec/fitech
Transmission: T56
Axle/Gears: 3.27 9-bolt
Re: New to GM - Carb Issues
when you get the replacement carb it will have to be adjusted to your motor. pretty simple really with either a dwell meter or scan tool. let us know when you get there and we can help.
Trending Topics
#9
Senior Member
Join Date: Apr 2016
Location: Perth Western Australia
Posts: 517
Likes: 0
Received 4 Likes
on
3 Posts
Car: 1987 Z28 Camaro
Engine: 305 LG4 4bbl
Transmission: TH700R4
Re: New to GM - Carb Issues
I dont think thats a CC Dist. Just looks like a big cap HEI as the pigtails indicate that its a simple power and tach hookup. Cant see the vac advance can though and thats def not a Computer Controlled Quadrajet.
Appears that someone has gone through a Computer Divorce at some point
Appears that someone has gone through a Computer Divorce at some point
#10
Supreme Member
iTrader: (1)
Join Date: Sep 2005
Posts: 26,046
Received 1,668 Likes
on
1,266 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: New to GM - Carb Issues
That looks like the original dist. I don't see a vac adv cam on it.
Looks like somebody just stuck a non-computer carb on it and left the computer dist there. A recipe for lots of weird problems and generally running like crap.
That car is hacked up pretty good... what a shame people do stuff like that. Fortunately it looks like most of the parts are at least still there.
9652 should do the trick for the carb. Shouldn't need too terribly much setup once you get it properly installed. Expect trouble with vacuum lines and decrepit wiring, nothing insurmountable but it might be tedious. For example I notice in the one pic, at the rear pass side, the MAP sensor vac line is all conflated with a bunch of other vac lines. You'll need one of these https://www.thirdgen.org/forums/tech...iagrams-i.html but don't worry too much about what year, they're all pretty much the same. Find the closest one you can and hook them all back up like they belong. Looks like one of the ones in post #27 should get you going. The vac ports on the carb all have a little letter cast into the metal next to them, might want to identify them all before you put the new one on to avoid confusion later.
If the dist works (i.e. if the car runs) let it be for the time being. One thing at a time. Get the carb on and working first.
Looks like somebody just stuck a non-computer carb on it and left the computer dist there. A recipe for lots of weird problems and generally running like crap.
That car is hacked up pretty good... what a shame people do stuff like that. Fortunately it looks like most of the parts are at least still there.
9652 should do the trick for the carb. Shouldn't need too terribly much setup once you get it properly installed. Expect trouble with vacuum lines and decrepit wiring, nothing insurmountable but it might be tedious. For example I notice in the one pic, at the rear pass side, the MAP sensor vac line is all conflated with a bunch of other vac lines. You'll need one of these https://www.thirdgen.org/forums/tech...iagrams-i.html but don't worry too much about what year, they're all pretty much the same. Find the closest one you can and hook them all back up like they belong. Looks like one of the ones in post #27 should get you going. The vac ports on the carb all have a little letter cast into the metal next to them, might want to identify them all before you put the new one on to avoid confusion later.
If the dist works (i.e. if the car runs) let it be for the time being. One thing at a time. Get the carb on and working first.
#11
Senior Member
Join Date: Apr 2016
Location: Perth Western Australia
Posts: 517
Likes: 0
Received 4 Likes
on
3 Posts
Car: 1987 Z28 Camaro
Engine: 305 LG4 4bbl
Transmission: TH700R4
Re: New to GM - Carb Issues
Check the numbers, order the rebuild kit, pull the carb, soak in "metal rescue" for an hour or so (dont know what it is? google it, its a miracle product)
Disassemble (30 mins)
Clean (anywhere from 30 mins to 24 hours if you soak it in a carb solution)
Ensure proper workings (replace plastic cam on the throttle door is a good idea regardless)
install kit and reassemble
The actual work involved is about an hour and a half tops.
Meanwhile order a cheap big cap vac advance HEI for a small block chev off of ebay ($40-$50)
slot it in an away you go
then you can start disconnecting all the useless sensors and wiring
Disassemble (30 mins)
Clean (anywhere from 30 mins to 24 hours if you soak it in a carb solution)
Ensure proper workings (replace plastic cam on the throttle door is a good idea regardless)
install kit and reassemble
The actual work involved is about an hour and a half tops.
Meanwhile order a cheap big cap vac advance HEI for a small block chev off of ebay ($40-$50)
slot it in an away you go
then you can start disconnecting all the useless sensors and wiring