tomhanaway
Well Known Member
Ok, I'm definitely not clear on this and can't find any directions or installation instructions. As far as I can tell, the Precision Airmotive fuel injection servo (Ex-5va1) attaches to the bottom of the engine sump where there is presently a 4 bolt plug.
If I'm understanding correctly, Van's VA-182 cable control bracket goes between the servo and the sump.
Questions:
1. Does the Lycoming sump (bottom of engine) have separate chambers in it for oil and for airflow?
2. The engine has preservative oil in it. If I undo the plug, the preservative oil is coming out. Logically, this will happen sooner or later when I install servo. Do I just let it drain out and then attach servo.
(Big assumption here is that air flows through servo, into sump and then up to cylinders-please confirm that assumption is correct).
2. I only have one gasket that came with the VA-182. Shouldn't the servo itself also have a gasket to preclude air leaks?
Thanks for any guidance. I've already done the SB gasket switch and realize I can call Precision Airmotive on Monday but it's really driving me nuts figuring out whether to leave the preservation oil in or get on with install.
Thanks in advance,
Tom Hanaway
Boynton Beach, FL
If I'm understanding correctly, Van's VA-182 cable control bracket goes between the servo and the sump.
Questions:
1. Does the Lycoming sump (bottom of engine) have separate chambers in it for oil and for airflow?
2. The engine has preservative oil in it. If I undo the plug, the preservative oil is coming out. Logically, this will happen sooner or later when I install servo. Do I just let it drain out and then attach servo.
(Big assumption here is that air flows through servo, into sump and then up to cylinders-please confirm that assumption is correct).
2. I only have one gasket that came with the VA-182. Shouldn't the servo itself also have a gasket to preclude air leaks?
Thanks for any guidance. I've already done the SB gasket switch and realize I can call Precision Airmotive on Monday but it's really driving me nuts figuring out whether to leave the preservation oil in or get on with install.
Thanks in advance,
Tom Hanaway
Boynton Beach, FL