Muffs for vintage OMC’s

[Buccaneer]

What style “muffs” were designed to fit the vintage OMC’s like
my 57 Evinrude 35 hp?
I’ve searched on site for “muffs” but didn’t come up with any photos.
I seem to remember seeing a homemade plate with garden hose
attachment. Anyone have photos of homemade or aftermarket muffs
to fit these motors?
I’d like to test run this motor but getting a tub of water under it on this
stand is problematic!
Thanks.

Prepare to be boarded!

[oldlure]

I believe Tempo Marine Products may have made one back in the day but I have only seen homemade ones.

[dave-bernard]

tempo made 2 types one replaced the side cover and one clipped over the exhaust snout.

[outboardnut]

I have used the 917 for rd-17 and rds 20

[Buccaneer]

Thanks for the replies. Anyone make their own side plate / garden hose contraption?

Prepare to be boarded!

[Steve D]

Buc, With your skills it should be a piece of cake. I’ve done it a few different ways but you basically just make a plate to fit the water intake, or sacrifice one from a parts motor or an extra in your stock, whatever…tap into it with a fitting, and attach a hose, and garden hose adapter and that’s it. Mercury makes a brass adapter you can adapt to your plate, or use a fitting, a piece of hose, and a cheap plastic garden hose adapter. One of the pictures shows one that a member made but don’t remember who.
Edit: Pictures didn’t seem to upload properly. Might be duplicates.

[Buccaneer]

Steve, excellent! I have lots of ideas now. Thanks!

Prepare to be boarded!

[labrador-guy]

Steve, that looks pretty good! What do you do with the pickup behind the prop? Duct tape? I suppose you could put a piece of rubber behind the plate so the water could only go one way. Think I am gonna make one of those puppy’s!

dale

[Buccaneer]

labrador-guy wrote:

Steve, that looks pretty good! What do you do with the pickup behind the prop? Duct tape? I suppose you could put a piece of rubber behind the plate so the water could only go one way. Think I am gonna make one of those puppy’s!

dale

I “think” I was wondering the same thing. There’s the intake screen lower down for the water pump,
and if I remember correctly, the passage runs up into the cavity where the little plate is
bolted on, and where the garden hose adapter would attach.

Prepare to be boarded!

[Steve D]

Water does come out of the pickup behind the prop and you could cover it if you wanted to for a more direct flow. I’ve never worried about it too much because there’s still enough pressure from the garden hose, even with the faucet open 1/2 way, to force water up past the impeller to the powerhead. Of course this doesn’t really test the impeller but it still is a good way to test initial running, settings, etc. when you don’t want to use a bucket or like you said Buc, when you have stand limitations or a heavy motor like yours.

[Author]

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