carb or intake leak?
Thread Starter
Instructor
Joined: Oct 2006
Posts: 181
Likes: 0
From: Des moines Iowa
carb or intake leak?
When my car is idiling I can hear a whistling sound coming from somewhere and when i put it into gear it almost goes away. 290hp crate 350, edelbrock 600, weiand intake. I was trying to set my carb and when I hooked the vaccum gauge it was bouncing around. I installed a new pvc valve and it steadied the needle after a few minutes of trying to set them the needle start bouncing again?? Two bad pvc valves?? or is it a intake leak or carb leak? I know when you floor the car it falls on its face. Once rpms are up it pulls strong. You can even grab the throttle arm on the carb and open it quickly and theres a big hesitation, it bogs out.
Thread Starter
Instructor
Joined: Oct 2006
Posts: 181
Likes: 0
From: Des moines Iowa
I was wondering if there is anyway there might be a vac leak at the tranny? It does kinda sound like it might be coming from under the car and when I put it into drive it sounds like it almost goes away.
Melting Slicks
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
A HYdraMatic does have a vacuum connection so a leak there is within the realm of possibility but I would check the carb and intake first. A C3 is full of vacuum lines so there's lots of places to leak.
Start pulling vacuum lines and see if the engine idle changes or stays the same. If the idle stays the same you have a leak.
Start pulling vacuum lines and see if the engine idle changes or stays the same. If the idle stays the same you have a leak.
Melting Slicks
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
A HYdraMatic does have a vacuum connection so a leak there is within the realm of possibility but I would check the carb and intake first. A C3 is full of vacuum lines so there's lots of places to leak.
Start pulling vacuum lines and see if the engine idle changes or stays the same. If the idle stays the same you have a leak.
Start pulling vacuum lines and see if the engine idle changes or stays the same. If the idle stays the same you have a leak.
