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It is currently Fri Mar 29, 2024 2:44 am
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Fowl Language
MMT Pro Member
Joined: Thu Jan 28, 2016 8:35 pm Posts: 67
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Shimming a BW 40
Been having fun with the new 40. Season started and it has been great. I did notice the other day that if I push down on the handle to move the cavatation plate upward, I immediately pick up rpms and about 2 mph.
So, I figured a shim might help. I installed one and it helped some, but when I pushed down on the handle, again I picked up rpms and speed. So I thought I would add 2 shims. Before I did, I look at the cavatation plate, it extends beyond the the prop about an inch, maybe a little longer. When I added a 2nd shim, the plate moved upward on the drive tube and the the prop was even with the edge of the plate and maybe a little beyond.
Would this be an issue? Has any one added 2 shims? How did the 40 perform?
On a side note, what rmps are you getting with a loaded boat. I'm running 3900 to 4100. Wondered what others are getting.
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Tue Nov 20, 2018 7:34 pm |
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mnugent
MMT Member
Joined: Wed Apr 27, 2016 7:17 am Posts: 24
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Re: Shimming a BW 40
I get between 4100 and 4300rpm loaded
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Wed Nov 21, 2018 4:34 am |
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Fowl Language
MMT Pro Member
Joined: Thu Jan 28, 2016 8:35 pm Posts: 67
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Re: Shimming a BW 40
I think I have it dialed in.
Runs right at the surface.
4250 RPMs.
1st time I have ever been able to run a longtail sitting down..
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Fri Nov 23, 2018 5:27 pm |
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