Prop question

If that scratch is showing a rust line, then we would definitely have our dealer look at it. We usually find a hairline fracture if there is a rust line running across the blade? Better safe than sorry in this case.BCB

One Year, until 2008, and they are now 3 years on all Mercury parts with the engine warranty. Or 2 years on an EFI engine and parts. We do not think the extended warranty applies to parts under the new warranty plan, though we will find out.BCB

Only Mercury Certified Service Centers have Warranty privileges. We at BCB do not have Warranty rights on Mercury parts either.BCB

Blow Out Ring, is a slang term! The Mercury Part #878421, is a “Propeller Sealing Ring”, that fits Trophy Propellers. Some mechanics even call it a “Diffuser Ring”. All the same thing!James

No Lawson101, they only want the best perfromance they can achieve. The vent rings, and PVS plugs have allowed us to tweak or adjust ventilation, and free the back side (vacuum) of the blade to improve build up of RPMs sooner. They do not want too much, only what they can achieve. And it can be achieved with these combos.This is nothing new, as we used to drill hubs, and Protestor had the first insert plugs we are aware of, which allowed you to drill those plugs out for improved performance.The vent rings have been around since those old Hooter Propellers of Pendergrass (Gary). They were aluminum back then and pressed on the hub tightly. We still have some of those aluminum rings. We also have seen tri cut hub kits for Choppers which gave a resemblance of a hub to the rear of those old chopper propellers for reducing the ventilation we all had to deal with years ago. This is not new technology, though ongoing and evolving.BCB

Many people drilled the old Trophys to accomplish the same things the PVS system does. Unfortunately, you dont have the same flexability as you do with the PVS plugs. I would be shocked if BCB doesnt have a trick for you to cover a hole. Maybe epoxy or something???? Sorry not much help, all of my prop tinkering has been in the last 7-8 year and almost everything with Plus props. Judd Lasiter edit – spelling errors

Thats how we had to drill them in the “old days”, i usually drilled 7/16″, and then to 1/2″ if necessary,,,,the prop should run o.k., and if you need to enlarge you can, but closing would be best done by a prop shop. The ventilation unfortunately is probably necessary for the holeshot. Oh, and if you try to drill holes in a prop go and buy ss drills, the regular drills will hurt you !!! D.

It sounds like you are describing an A-45 Trophy prop. These are like gold and sell for mucho dollars when they are available. They were generally considered faster than the current Trophy props. You have a good prop, dont worry about not being able to tune it like the newer props.