macrafic
Well Known Member
I am building an RV-7A and have an IO-360, Superior horizontal sump, engine. Before I understood things, I had installed the gascolator bracket in the standard location on the firewall (lower right, as facing the firewall from the cockpit) and punched the hole into the firewall.
Now, I have installed the Andair fuel system and decided I don't need a gascolator. Ordinarily, for this setup, the fuel line would follow the tunnel forward from the Andair fuel pump and exit the firewall about the location where Van's firewall-mounted fuel pump would normally be installed (just straight ahead of the tunnel). I think this is OP 32.
My question is, which is better?
A. patch up the gascolator hole with SS and Proseal and penetrate the firewall where I ordinarily would if I hadn't made the gascolator mistake (and as directed by OP 32)?
B. extend the fuel line from the Andair fuel pump, to the firewall, then over to the location where the gascolator would normally go (and where I have the firewall hole punched) and exit there. Basically, this would be the O-360 setup (OP 28, I believe), but without the firewall-mounted fuel pump.
The latter option would allow me to re-use a hole I've already punched and avoid having to patch (which isn't a big deal, but is one more mistake that is a bit more visible than others I've made! yeah -ego at work here!!!) Any downside to this?
Now, I have installed the Andair fuel system and decided I don't need a gascolator. Ordinarily, for this setup, the fuel line would follow the tunnel forward from the Andair fuel pump and exit the firewall about the location where Van's firewall-mounted fuel pump would normally be installed (just straight ahead of the tunnel). I think this is OP 32.
My question is, which is better?
A. patch up the gascolator hole with SS and Proseal and penetrate the firewall where I ordinarily would if I hadn't made the gascolator mistake (and as directed by OP 32)?
B. extend the fuel line from the Andair fuel pump, to the firewall, then over to the location where the gascolator would normally go (and where I have the firewall hole punched) and exit there. Basically, this would be the O-360 setup (OP 28, I believe), but without the firewall-mounted fuel pump.
The latter option would allow me to re-use a hole I've already punched and avoid having to patch (which isn't a big deal, but is one more mistake that is a bit more visible than others I've made! yeah -ego at work here!!!) Any downside to this?
