Walston
Member
- Location
- Upstate SC
Guys. I recently bought a 1929 Mercedes Gazelle replica with a 1980 Pinto drive train. It was factory built in 1981 at Classic Motor Carriages in Florida. It has 20K miles and is in incredible shape. It has not been driven much as you can tell from the mileage. It is a nice practical (NOT) toy as my wife says.
The car idles great and accelerates perfect up to about 25 MPH, but it just won't go much faster. Seems 2500 RPM is the limit. Since it acted like only the idle part of the carb was working, I bought a rebuild kit and I just rebuild the carburetor (Holley 5200) and I found sludge in the gas bowl and the main jets were plugged. I felt certain I found the issue. I cleaned every passage I could find. I replaced all the diaphragms and cleaned all the jets. I just drove the car and it frankly is about the same. It will rev to 5000 rpm easily in park, but 2500 is the max driving. Vacuum looks good according to my gauge. All the emission stuff is just like is came from the factory. I also installed a new fuel pump and new filter. I flushed the gas tank and it has fresh gas in it.
I replaced PCV, plugs, wires, cap and rotor. Timing is right on and the advance seems to be working properly.
Right now I am stumped. Could there be passages in the carb that I have not got clean. Any ideas guys?
The car idles great and accelerates perfect up to about 25 MPH, but it just won't go much faster. Seems 2500 RPM is the limit. Since it acted like only the idle part of the carb was working, I bought a rebuild kit and I just rebuild the carburetor (Holley 5200) and I found sludge in the gas bowl and the main jets were plugged. I felt certain I found the issue. I cleaned every passage I could find. I replaced all the diaphragms and cleaned all the jets. I just drove the car and it frankly is about the same. It will rev to 5000 rpm easily in park, but 2500 is the max driving. Vacuum looks good according to my gauge. All the emission stuff is just like is came from the factory. I also installed a new fuel pump and new filter. I flushed the gas tank and it has fresh gas in it.
I replaced PCV, plugs, wires, cap and rotor. Timing is right on and the advance seems to be working properly.
Right now I am stumped. Could there be passages in the carb that I have not got clean. Any ideas guys?