77 bogging down and dying when in reverse
Thread Starter
Instructor
Joined: Dec 2013
Posts: 149
Likes: 5
From: VA
77 bogging down and dying when in reverse
just got the 1977 corvette , mostly stock.
its fine forward but noticed it dies when in reverse, when turning sharply to back into driveway, also i have to hold gass down slightly for about a min after a cold start , or it will die...
i'm new to older cars, was wonder if i could make an adjustment to carb to rev it up slightly, to resolve these issues?
currently once is start it up and nurse it for a few mins, when it idles on its own it sits at about 900 rpm,
im guessing it was sitting for a while before i got it , so i got a full tank of gass and put a bottle of Heat in with the gass to get rid of any water accumulated in the tank. the battery is at about 13.5v, , new spark plugs and plug wires, air filter is new. 86k miles.
its fine forward but noticed it dies when in reverse, when turning sharply to back into driveway, also i have to hold gass down slightly for about a min after a cold start , or it will die...
i'm new to older cars, was wonder if i could make an adjustment to carb to rev it up slightly, to resolve these issues?
currently once is start it up and nurse it for a few mins, when it idles on its own it sits at about 900 rpm,
im guessing it was sitting for a while before i got it , so i got a full tank of gass and put a bottle of Heat in with the gass to get rid of any water accumulated in the tank. the battery is at about 13.5v, , new spark plugs and plug wires, air filter is new. 86k miles.
Burning Brakes
Joined: Oct 2001
Posts: 1,241
Likes: 4
From: Okinawa Okinawa
What kind of choke do you have? Sounds like the choke is not working if you have to keep the throttle open when you first start it. When I bought mine, there was not a functioning choke. Now, I enage the choke and it starts right up at 1200 rpm.
Check the timing on the vehicle as well.
Is the engine stock or does it have a big cam in it?
Check the timing on the vehicle as well.
Is the engine stock or does it have a big cam in it?
Thread Starter
Instructor
Joined: Dec 2013
Posts: 149
Likes: 5
From: VA
im pretty sure the engine is mostly stock, but was rebuilt by last owner, so its a bit of a mystery.
really dont know how to check timing or what type of choke i have, will investigate and post pics when i can.
really dont know how to check timing or what type of choke i have, will investigate and post pics when i can.
2026 Loser of the Year
Joined: Sep 2013
Posts: 36,573
Likes: 7,017
From: New Or-leens Loo-z-anna
I've discovered that a mis-adjusted choke will cause hard starting...
also.....if you don't like a choke---just remove the choke plate and leave everything else as is.....
that way, the engine will still idle at 1200 rpm until it warms up/you won't have to keep "nursing" the accelerator pedal to keep it running.
also.....if you don't like a choke---just remove the choke plate and leave everything else as is.....
that way, the engine will still idle at 1200 rpm until it warms up/you won't have to keep "nursing" the accelerator pedal to keep it running.
