73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: Cheyenne on May 03, 2011, 11:50:33 pm
-
I have a 80 Chevy K10 everything is stock. I had posted on here before,about the carb running fast. I have not had the time to look, the throttle cable and linkage seemed great. However I got the truck to idle back to normal pushing down on the throttle as something was pulling it back. So I checked the egr linkage, going to the diaphragm etc that cable is still and I think that holding the throttle open. I'm not a mechanic learning on the fly I'm trying. Should I just unhook the egr cable? Not sure thanks
-
The egr is not controlled by Linkage, but by vacuum.
Post a pic of what you are looking at..
-
Are you talking about the vacuum servo for cruise, maybe? About 4" or so diameter with a linkage going to the throttle on the carb.? Don't know what you've tried, but I've had luck solving that with liberal doses of carb. cleaner all over the moving linkages of the carb. They tend to stick when they get gummed up. Could also be a weak throttle return spring. Could also be your cable needs lubed.
-
(http://i694.photobucket.com/albums/vv309/mbrooks_79/spring2011088.jpg)
(http://i694.photobucket.com/albums/vv309/mbrooks_79/spring2011087.jpg)
-
Ive sprayed the carb a lot the springs seem to move ok. If i pull the throttle by hand or in the truck with my foot. It sometimes keeps the throttle lifted to high and does mot return and idles fast of course. i thought maybe the egr cable was to tight from the vaccum can't tell whats keeping it loose.. never had this trouble before very simple fix not much there but its not going back down like it should something keeping it up.. the springs seem loose..
-
What do you mean the EGR cable? There is no EGR cable. Your choke isn't open and you're on the fast idle cam
-
I'm trying to learn here.. The screwdriver i'm pointing a black cable goes to a vaccum thought that was egr?I'm here to learn about trucks my knowledge is still learning.. I'm more of a body person can do welding and body work but mechanicly I'm still learning
-
It looks like you are pointing at the throttle cable which then goes to the accelerator pedal. The other link goes to the cruise control servo. Your ignition wires need to be routed away from moving parts.
-
i think that's cruise control. EGR is on the pass side i think.
I dont know if you have one or not, but get a manual and read through it. You can find the original factory manuals on ebay. I got one for cheap, it was used. They have brand new ones for a little more. Just reading through it will help out a lot, answer questions you didnt think you had, and show you stuff you never knew.
-
The guys got you headed in the right direction. What your calling the EGR is your cruise control servo...don't call it an EGR anymore ;) Now on to new business, the linkage on the cruise control looks molested...heated, welded on or something at the end, also it looks bent where the pin rides. I think you should remove it & see if this fixes your problem. What is the retaining clip on the end of the post coming from the carb? Looks odd & "not stock equipment".
If you could, how about posting a picture or Two of the other side of the carb also. Don't fear, you will get it sorted out with a bit of help. Lorne
-
@beastie I need a manual good idea, I want something like a DVD that teach me how everything works beyond the basics. I know these old trucks are basic, but sometimes people put stuff together and than it's harder to figure out. I didn't think the quad carb was stock has a edelbrock manifold etc. However the stock air is hooked up etc. I think engine is original the numbers are located on the back i think?? To hard to see..
I had a 79 f150 recent restored that had sat for years so I had to rebuild the carb,clean the tank clean and replace gas lines.. New fuel pump replace gaskets.. All new electical still would not run it was a pick up coil I learned a lot though sold it for more got this.. I could not have a ford lol ha
ok what pictures should I take from passenger side etc I could do a you tube video tomorrow maybe video work better..
Thanks everyone giving your input.. Won't drive it like this ruin my trans going into gear to hard..
-
I don't have cruise control from what I see also?
-
can you push in the end of your turn signal? Do you have a weird device bolted on the driver side inner fender that the speedometer cable plugs into and has electrical and vacuum lines?
-
I have been comparing this 80 truck to my Dad's old 78 he had restored. I had never really worked in between the fenders on it. He had put a 80s aftermarket cruise control on the truck looked much diffrent. I never knew they had a push button like that. It's a process learning as I go. Thanks for the tip on that rather it works I don't know lol.. I've been doing searches on here,online just reading about these trucks to get as much knowledge as I can.. I rather turn the key and drive, but this learning curve I got is nice to.. Now I just look dumb cruise control lol.. Thanks beastie
-
Take a couple of pics of your engine bay on both sides and post, that way we can tell you what you have stock and what if anything is not.
-
Engine pictures
(http://i694.photobucket.com/albums/vv309/mbrooks_79/spring2011101.jpg)
(http://i694.photobucket.com/albums/vv309/mbrooks_79/spring2011100.jpg)
(http://i694.photobucket.com/albums/vv309/mbrooks_79/spring2011103.jpg)
-
(http://i694.photobucket.com/albums/vv309/mbrooks_79/spring2011104.jpg)
(http://i694.photobucket.com/albums/vv309/mbrooks_79/spring2011102.jpg)
(http://i694.photobucket.com/albums/vv309/mbrooks_79/spring2011088.jpg)
-
I put the picture any idea where I go from here? Is the engine stock?
-
No, you have a edelbrock manifold, wrong plug wires (too long), and no air cleaner.
-
Looks Like the manifold is not stock, and I do not see any EGR provision on the manifold.
That cannister behind the carb, connected to the throttle linkage is the cruise control.
The linkage connecting it to the throttle looks hosed, as previously stated.
-
I have a air cleaner the black one just took it off to work on it man.. It's rigged should I just take the pin out this darn thing I'm a young buck trying to figure this out I don't want to pay anyone
-
Where are you with this? Did you remove the cruise control arm (thing going from the throttle to the Cruise control)
-
If you are ever my way I'd be happy to splain to you what everything is....