When I built my RV-7 I positioned the cowl close to the rear of the spinner (about 3/16 inch gap). Now the engine has dropped a little such that the gap is about 1/8 which is no big deal except when I have to remove the lower cowling with the 3 blade Catto prop. Removing the cowling is a real PIA in particular trying the drop the front (with the inlet intake and carb intake seals) without scratching the cowl or the spinner.
In my configuration I have the Sabre prop extension bolted to the crankshaft and the mounting bolts protrude about 1/8 in through the back of the crankshaft mounting plate so my question is whether it would be acceptable to add a 1/8 plate to the sabre extension to increase the cowl to spinner distance to about 1/4 inch.
Figs
In my configuration I have the Sabre prop extension bolted to the crankshaft and the mounting bolts protrude about 1/8 in through the back of the crankshaft mounting plate so my question is whether it would be acceptable to add a 1/8 plate to the sabre extension to increase the cowl to spinner distance to about 1/4 inch.
Figs