drilling prop,, good, bad ?

[monolithic]

115 L6 1982 I was told I could drill the prop to help with the bottom end. How manny hole per blade and what size? THANKS

 

[jimmbo]

Re: drilling prop,, good, bad ?

One hole per blade, 1/8" or 3/16 is a good place to start from.

 

[achris]

Re: drilling prop,, good, bad ?

The hole is drilled in the hub on the low pressure side of each blade. The position of the holes is very critical and if you don't have the right dimensions you'll mess up a good prop. I'll have a look around and see if I can find the piece of paper with the info on it.<br /><br />Chris..............<br /><br />EDIT : Found it. If you'd like I'll e-mail it to you. Just post your e-mail address.....<br /><br />

 

[monolithic]

Re: drilling prop,, good, bad ?

Thanks for the info, will be drilling later today. The diagram is the best. Now I just have to figure out the choke. Will let you know how it goes.

 

[monolithic]

Re: drilling prop,, good, bad ?

Well. drilled the prop.. Made a good difference. Glad I did,

 

[achris]

Re: drilling prop,, good, bad ?

Nice to hear of a good result.

 

[erniex]

Re: drilling prop,, good, bad ?

So drilling the prop will help with with the bottom end without affecting top end rpms? Can you explain and post the info for all to see?

 

[KCLOST]

Re: drilling prop,, good, bad ?

Holes

 

[phatmanmike]

Re: drilling prop,, good, bad ?

i did mine, 1976 115 inline 6 merc , with 3/16" holes... works great except i noticed if i turn too sharp at fast speeds, it ventilates untill i lower the throttle. i would reccomend starting out with size 1/8" and working up from there, one hole ata time, and only 1/16 at a time

 

[BassMan31]

Re: drilling prop,, good, bad ?

wondering if this hole drilling would help a 15 hp motor any.