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Author Topic:   swim platform as Aux. Motor mount

5thwhaler posted 07-24-2002 08:20 PM ET (US)
Anyone with experince using a right angle motor mount on a factory installed swim platform for 84 OR 18'? My aux motor is a Yam 15 weighing 99lb.
Jerry Townsend posted 07-25-2002 10:50 AM ET (US)
5thwhaler - I would be very hesitant about mounting an auxillary engine on the swim platform. The problem is not the weight, but rather the vibration of the engine and the mounting of the platform to the hull. The swim platform on my 17 OR is well mounted with several (perhaps 8 - 10) good sized screws and a liberal application of sealant. While this is fine for a swim platform, I would be hesitant to put a relatively heavy vibrating load on it. Now, if the swim platform were through bolted to the transom - that would be a different story. ---- Jerry/Idaho
5thwhaler posted 07-25-2002 11:06 AM ET (US)
Jerry, thanks for the info. My swim platform is through bolted with 4 3/8" bolts. It seems very strong when usintg it to get into the boat. While scalloping there have been some 200+ pounders using it. You think the through bolting will accommodate the vibration? I had not considered that aspect.
Bigshot posted 07-25-2002 11:20 AM ET (US)
Bayliner used to do it. Only problem is that motor gets swamped. If you had one mounted really high but that would defeat the purpose. If you ever back down on a fish it will clearly go under.....not good.
Casey Casebeer posted 07-27-2002 07:00 AM ET (US)
I've used the swim step on my Montauk for a kicker bracket for a couple years. My "kicker" is (only) a Honda 2hp (26 pounds) but it works. The bracket itself was fabricated from aluminum plate with side gussets, then through bolted to the swimstep. Nothing fancy, but it works ok.
Don't know how a larger/heavier motor would work.
Contact me if you want more info.
Casey
( lorencasebeer@aol.com )
5thwhaler posted 07-28-2002 06:52 PM ET (US)
Thanks, Casey. Think I will try it using the welded Aluminium bracket.
Tom W Clark posted 07-29-2002 01:27 PM ET (US)
I would definitely not use the swim platform for mounting a kicker. You should clamp a 20" kicker directly to the transom. This will be both much stronger and safer as well as being more convenient to reach and less vulnerable to dunking.
I was passing through the locks between Puget Sound and Lake Washington yesterday here in Seattle and was tied up next to a guy in his 20 something foot cuddy. His Mercury 8 hp kicker was held up with a tangle of rope.
He said he went over a wake that morning and the bracket on the kicker snapped and he would have lost the motor but for his safety cable.
His kicker was mounted to an angle bracket on his swim platform and he told me it was totally unsatisfactory. He had already reinforced the swim platform with aluminum angle but he said he still did not trust it. He was planning on removing the swim platform and installing a kicker bracket.
On an Outrage 18 you have to added benefit of not even needing a bracket if you clamp directly to the transom as the factory recommends.

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Author	Topic: swim platform as Aux. Motor mount
5thwhaler	posted 07-24-2002 08:20 PM ET (US) Anyone with experince using a right angle motor mount on a factory installed swim platform for 84 OR 18'? My aux motor is a Yam 15 weighing 99lb.
Jerry Townsend	posted 07-25-2002 10:50 AM ET (US) 5thwhaler - I would be very hesitant about mounting an auxillary engine on the swim platform. The problem is not the weight, but rather the vibration of the engine and the mounting of the platform to the hull. The swim platform on my 17 OR is well mounted with several (perhaps 8 - 10) good sized screws and a liberal application of sealant. While this is fine for a swim platform, I would be hesitant to put a relatively heavy vibrating load on it. Now, if the swim platform were through bolted to the transom - that would be a different story. ---- Jerry/Idaho
5thwhaler	posted 07-25-2002 11:06 AM ET (US) Jerry, thanks for the info. My swim platform is through bolted with 4 3/8" bolts. It seems very strong when usintg it to get into the boat. While scalloping there have been some 200+ pounders using it. You think the through bolting will accommodate the vibration? I had not considered that aspect.
Bigshot	posted 07-25-2002 11:20 AM ET (US) Bayliner used to do it. Only problem is that motor gets swamped. If you had one mounted really high but that would defeat the purpose. If you ever back down on a fish it will clearly go under.....not good.
Casey Casebeer	posted 07-27-2002 07:00 AM ET (US) I've used the swim step on my Montauk for a kicker bracket for a couple years. My "kicker" is (only) a Honda 2hp (26 pounds) but it works. The bracket itself was fabricated from aluminum plate with side gussets, then through bolted to the swimstep. Nothing fancy, but it works ok. Don't know how a larger/heavier motor would work. Contact me if you want more info. Casey ( lorencasebeer@aol.com )
5thwhaler	posted 07-28-2002 06:52 PM ET (US) Thanks, Casey. Think I will try it using the welded Aluminium bracket.
Tom W Clark	posted 07-29-2002 01:27 PM ET (US) I would definitely not use the swim platform for mounting a kicker. You should clamp a 20" kicker directly to the transom. This will be both much stronger and safer as well as being more convenient to reach and less vulnerable to dunking. I was passing through the locks between Puget Sound and Lake Washington yesterday here in Seattle and was tied up next to a guy in his 20 something foot cuddy. His Mercury 8 hp kicker was held up with a tangle of rope. He said he went over a wake that morning and the bracket on the kicker snapped and he would have lost the motor but for his safety cable. His kicker was mounted to an angle bracket on his swim platform and he told me it was totally unsatisfactory. He had already reinforced the swim platform with aluminum angle but he said he still did not trust it. He was planning on removing the swim platform and installing a kicker bracket. On an Outrage 18 you have to added benefit of not even needing a bracket if you clamp directly to the transom as the factory recommends.