84 Scarab Renovation (ongoing)
01-31-2016, 08:22 AM
#511
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Join Date: Aug 2007
Location: Sandown, NH - Sebago Lake Region, ME
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Just as info on the transmissions, there are some minor changes that can be done. I believe I had some different springs or something put in mine to increase the fluid pressure. I found a Twin Disc dealer that that still had a mechanic who was familiar with rebuilding the transmissions from back when the Kaamas were still in production. It was a lot of money to have them rebuilt by the dealer, I would not do it again. If I was committed to using the Kaamas I would look into the modern replacement for the MG 502s.
01-31-2016, 08:41 AM
#512
Charter Member#568
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Twin Disc is still in business making several models of marine transmissions. There was a newer version, but it's been several years since I looked into it. It may not have had identical dimensions, but was generally the same input/output wise. Twin Disc offered to do an engineering study for me at the time, but that sounded like code for saying it would cost more than my entire boat.
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Straight bottoms and flat decks
Straight bottoms and flat decks
01-31-2016, 09:33 AM
#513
Charter Member#568
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Just took a look at their site. They have more transmissions than I care to look through. They do mention that they manufacture one that is full throttle reversing with angled output for low/ level engine mounting, so there's your 502 replacement
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Straight bottoms and flat decks
Straight bottoms and flat decks
02-01-2016, 01:12 PM
#515
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Looks great do you want to put a set of original Kaama water pickups on it I have all the pieces to weld up a least 50 of each left over. Send me your address and I will send you a set pieces to build a couple just have to weld them together and from the looks of your build that should be no problem.
02-01-2016, 02:44 PM
#516
Charter Member#568
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I'm assuming the water intakes on my Formula are still the original Kaama pieces. They are pretty clean an simple appearance wise. They also have a grate on them to stop seaweed from getting sucked in, if those are the ones.
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Straight bottoms and flat decks
Straight bottoms and flat decks
02-01-2016, 03:16 PM
#518
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It is probably a lot of work to relocate the bravos but probably a lot more work to convert to kaama's! As team archer stated the engines move forward a lot and sit really low in the bilge. Depending on the bilge configuration you may not even have the room to move the engines forward enough!
I would agree that if you are happy with the bravos then focus the effort on relocating them to the right height! I might be interested in your kaama's if you are looking to sell!
I would agree that if you are happy with the bravos then focus the effort on relocating them to the right height! I might be interested in your kaama's if you are looking to sell!
fyi there is twindisc transmissions still being manufactured that are holding up to 4000 horsepower. I saved the website if you want the link?
02-01-2016, 03:24 PM
#519
Charter Member#568
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I'd hate to see what they are charging for them. I could've bought new Huber or Bams for what it costs to rebuild and upgrade the 502s at the dealer
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Straight bottoms and flat decks
Straight bottoms and flat decks
02-02-2016, 12:29 PM
#520
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