14 Pitch 4 Blade Prop hits Anode/Trim Tab

[Maxum88]

Hey Guys,

I just picked up a 14 pitch 4 blade aluminum prop for my Alpha One Mercruiser. It was hitting my Anode/Trim tab, so I removed it...but I would like to at least pick up a "blank" but would rather one with a different angle to avoid the hitting and still be able to adjust it. I did find this site:

http://www.google.com/imgres?imgurl...cruiser&um=1&hl=en&gbv=2&tbm=isch&um=1&itbs=1

Does anyone have any advice as to the best solution for this?
-Tim

 

[Bondo]

Re: 14 Pitch 4 Blade Prop hits Anode/Trim Tab

Hey Guys,

I just picked up a 14 pitch 4 blade aluminum prop for my Alpha One Mercruiser. It was hitting my Anode/Trim tab, so I removed it...but I would like to at least pick up a "blank" but would rather one with a different angle to avoid the hitting and still be able to adjust it. I did find this site:

http://www.google.com/imgres?imgurl...cruiser&um=1&hl=en&gbv=2&tbm=isch&um=1&itbs=1

Does anyone have any advice as to the best solution for this?
-Tim

Ayuh,.... Try, or Trim any one of 'em.... Whichever fits is the 1 ya need...

 

[fishrdan]

Re: 14 Pitch 4 Blade Prop hits Anode/Trim Tab

Bust out the grinder and take some material off the trim tab, so the prop clears. An Alpha4 prop hit the trim tab on my MC-1 too, but a couple minutes with the grinder and it was all better, I clearanced it about 1/4", then put an angle back on the edge to relieve that flat spot caused by grinding.

You could do it with a file too, but it would take a lot longer... (I would remove the trim tab, before grinding.)

 

[Texasmark]

Re: 14 Pitch 4 Blade Prop hits Anode/Trim Tab

Bust out the grinder and take some material off the trim tab, so the prop clears. An Alpha4 prop hit the trim tab on my MC-1 too, but a couple minutes with the grinder and it was all better, I clearanced it about 1/4", then put an angle back on the edge to relieve that flat spot caused by grinding.

You could do it with a file too, but it would take a lot longer... (I would remove the trim tab, before grinding.)

They make offset trim tabs to help this situation. I have one on my engine, but my prop hit it anyway so I too got out the grinder and ground it off till the prop cleared it by 1/4" also and it works just fine. Just remember where it was positioned so that when you put it back on your trim will be as it was.

Mark