bigbadbluetr6
Jedi Trainee
Offline
I recently just rebuilt the carbs and have no tuned them yet. I have barely drove the car since and when I was driving it I noticed it wasn't idling smoothly but it was barely off. Today I went to an event about 2 hours away. On the way down we were driving 60-65. I could hear and feel the car have a slight hesitation. Kind of slightly jerky.
On the way home I came home on the Interstate running 75-80. The car seemed to like it and I didn't notice any of the previous hesitation. After running like this for a little over a hour the car started to miss. I would press in the clutch, rev, the motor and then put the car back into gear. That seemed to work for a while. The intervals were not that close of this happening. Then while close to home on the interstate it started to do this same thing but press clutch, rev and put into gear no longer worked. I got off the exit before I wanted to so I could limp home. After getting off the highway I stopped at a light. Taking off it stumbled continuously. Had to stop at the next light. Take off from that light and no problem. Once I get closer to home and a few more stop lights I take off from one light and the car instantly dies. Get it started and on my way than it shows that it is running on the tach but press the gas pedal and nothing. Have to restart the car. Same thing happens again and I pop the clutch like a roll start. Starts, Drive home the rest of the way and still have the slight miss.
Get in the garage and take the airbox off to mess with each carb separately. Here is what I found,
When giving both carbs a little throttle it looked like the rear carbs cylinder(don't know the name) moved a little bit sooner than the front carb.
At idle:
Rear Carb - I would hold the cylinder open and the car would die. I could moved the cylinder up and down smoothly.
Front Carb - I would hold the cylinder open and the car would still idle. The cylinder has resistance about half way up.
Suction at idle
Rear carb - I could feel suction
Front carb- Couldn't feel any suction
Cover the carb with a piece of cardboard
Rear carb - almost kills engine
Front carb - Keeps idling and maybe a slight increase.
Hope I explained this well enough. It is probably a simple solution. There also seems to be a whistle. I don't know if there is a leak in one of the carbs somewhere. I don't really know the correct direction to go into right now but I have a feeling I will be taking the carbs off the car but then I wouldn't have a clue on what to look for. I understand the carb needs air and fuel to operate and I believe it is air because I took the fuel line going into the carb while the car is running and it squirts out(both sides). This makes me believe its and air issue and that would be the carbs. I came to ask everyone here because you have probably seen this problem before and know the simple solution. Thanks in advance.
Eric
On the way home I came home on the Interstate running 75-80. The car seemed to like it and I didn't notice any of the previous hesitation. After running like this for a little over a hour the car started to miss. I would press in the clutch, rev, the motor and then put the car back into gear. That seemed to work for a while. The intervals were not that close of this happening. Then while close to home on the interstate it started to do this same thing but press clutch, rev and put into gear no longer worked. I got off the exit before I wanted to so I could limp home. After getting off the highway I stopped at a light. Taking off it stumbled continuously. Had to stop at the next light. Take off from that light and no problem. Once I get closer to home and a few more stop lights I take off from one light and the car instantly dies. Get it started and on my way than it shows that it is running on the tach but press the gas pedal and nothing. Have to restart the car. Same thing happens again and I pop the clutch like a roll start. Starts, Drive home the rest of the way and still have the slight miss.
Get in the garage and take the airbox off to mess with each carb separately. Here is what I found,
When giving both carbs a little throttle it looked like the rear carbs cylinder(don't know the name) moved a little bit sooner than the front carb.
At idle:
Rear Carb - I would hold the cylinder open and the car would die. I could moved the cylinder up and down smoothly.
Front Carb - I would hold the cylinder open and the car would still idle. The cylinder has resistance about half way up.
Suction at idle
Rear carb - I could feel suction
Front carb- Couldn't feel any suction
Cover the carb with a piece of cardboard
Rear carb - almost kills engine
Front carb - Keeps idling and maybe a slight increase.
Hope I explained this well enough. It is probably a simple solution. There also seems to be a whistle. I don't know if there is a leak in one of the carbs somewhere. I don't really know the correct direction to go into right now but I have a feeling I will be taking the carbs off the car but then I wouldn't have a clue on what to look for. I understand the carb needs air and fuel to operate and I believe it is air because I took the fuel line going into the carb while the car is running and it squirts out(both sides). This makes me believe its and air issue and that would be the carbs. I came to ask everyone here because you have probably seen this problem before and know the simple solution. Thanks in advance.
Eric