BANG FOR THE BUCK.... GO 49 OMC...CHOOSE WISELY

Hounddog · **Joined:** April 3rd, 2012, 1:52 pm **Posts:** 3033

mattmak wrote:

What do people do to increase the reed stop height? Mine measure .210 to .220in. Spec sheet for 49.7 FE says .280

Matt, check a few 56 reed cages. When we raced SST 60 in the states the inspectors found the reed stop height was between 280 and 300. That range was legal.

6. Standard SST 60 reed is steel .010 thick and reed stop height is H=.280 maximum.
Alternate reed for SST-60 may be used: OMC P/N 568428, bottom reed = .028.003; top reed .017.003, H = .300 maximum

HERE'S ANOTHER BANG FOR THE BUCK 49!
https://www.kijiji.ca/v-powerboat-motor ... 1500975792

mattmak · **Joined:** June 5th, 2015, 8:56 am **Posts:** 519

thanks Don, but I have no other reed cages.

does anyone have 56'r reed cages available?

edit: I do have cages from very early 3cyls - the 55/65hp electric shift motors.. I may use those reeds to make shims..

sheuninck · **Posted:** May 18th, 2020, 12:40 pm

I bent the stops open in a vice.

mattmak · **Joined:** June 5th, 2015, 8:56 am **Posts:** 519

it is alive!

no leaks, no kaboom, compression still good.
now for the tuning...

I can't get the engine height low enough. I lose water pressure trimming up... Trim up to just about getting good and the tell tail is mostly air. Trim down, solid stream...

LittleCharger · **Joined:** April 1st, 2012, 12:29 am **Posts:** 1444

mattmak wrote:

it is alive!

no leaks, no kaboom, compression still good.
now for the tuning...

I can't get the engine height low enough. I lose water pressure trimming up... Trim up to just about getting good and the tell tail is mostly air. Trim down, solid stream...

looks awesome Matt!!!

did you block off the top two holes on the water inlets?

mattmak · **Joined:** June 5th, 2015, 8:56 am **Posts:** 519

Thanks, Paul.
Yes, top two are blocked. I should be more organized - hijacked two threads for this, but there are pics here: viewtopic.php?f=2&t=4299
It is still a bit of a Frankenstein motor. Needs paint and decnals...

Streamin · **Posted:** June 1st, 2020, 12:22 pm

At least its wet

mattmak · **Joined:** June 5th, 2015, 8:56 am **Posts:** 519

I saw 63.4mph at 6380rpm with the 21p prop I use for T750 racing.
That's with the wind (and it was windy and choppy and cool) and engine too high, but I couldn't fully trim up or take a long pass due to no water pressure.

LittleCharger · **Joined:** April 1st, 2012, 12:29 am **Posts:** 1444

mattmak wrote:

I saw 63.4mph at 6380rpm with the 21p prop I use for T750 racing.
That's with the wind (and it was windy and choppy and cool) and engine too high, but I couldn't fully trim up or take a long pass due to no water pressure.

That's faster than your yamaha 70 isn't it

HPBCANADA.COM

BANG FOR THE BUCK.... GO 49 OMC...CHOOSE WISELY

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