Fuel in Vacuum line
Hello everyone,
I am new to Fitech and I've been doing my research through this website and youtube so I am learning as I go. Yesterday I installed a vacuum pump to boost my brakes. When I disconnected the vacuum hose from the rear of the Fitech Power-ader 400, I noticed there was fuel in the line going to the master cylinder. On top of the fuel in the vacuum line and the smell of fuel everywhere, I noticed the check valve on the master cylinder was melted shut. I replaced it today and now I have working brakes. I am still worried about the fuel in the line though. Has this every happened to anyone? Could it have been caused by the pressure from the closed check valve?
Thank you for your wisdom in advance.
Sincerely,
Robert
P.S. Its on a 1966 mustang with a 347 crate motor.
Uploaded files:- You need to login to have access to uploads.
If I understand correctly, you now have the vacuum line disconnected from the Fitech. If so, plug the port, take for a drive. Pull the vacuum cap off and check for fuel. This could isolate problem.
Yes, I'm sorry. That's what I did. I plugged it since I don't need it anymore to supply vacuum for the brake booster. The pump is working great and it's quiet. What concerned me was the fuel in the vacuum line. I thought vacuum ports, that were only there to supply vacuum for auto trans or brake boosters for example, should not have any fuel in the lines. I was worried that there was something wrong with the Fitech unit itself.
Hope that cleared it up a little.
thanks
Yep, cleared up. Drive the car and then pull vacuum cap. Look for fuel evidence. Want to isolate their is a problem or if you solved it with the changes.