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ContinuousWave: The Whaler GAM or General Area
|Author||Topic: Transom Wedges|
posted 08-28-2001 09:17 PM ET (US)
I am running an '88 20' Outrage with an '88
140hp Johnson and have never been able to trim the bow down far enough for optimum running under all conditions. Has anyone had experience with transom wedges on this hull/engine combination? Would the wedges provide just enough extra range of tilt to the engine to allow a full bow down ride?
engine to allow
posted 08-28-2001 10:06 PM ET (US)
Why not just a set of manually adjustable trim tabs? Or, better yet, try to redistribute more weight toward the bow. Try moving the batteries forward more. These are usually located right near the transom, so you could move 100 lbs right there without even thinking.
posted 08-29-2001 06:05 PM ET (US)
I have a 1978 outrage with a 175 horsepower Evninrude which I was never able to trim in enough. I bought transom wedges (West Marine has them) and installed them about a month ago. They work great. To install them, I put a floor jack under the skeg of the motor to support the engine and slightly loosened all four bolts holding the motor to the transom so I could move the engine around a bit. I then took the bolts off on one side and installed the wedge and the bolts and then did the same thing to the other side. When installing the wedges, you need to make sure the bolt holes are well sealed. After installing the wedges, be careful when you first trim the motor in so that the lower unit of the engine does not hit the transom. Good luck.
posted 09-02-2001 03:35 PM ET (US)
There has to be something wrong with your trim and tilt on your motor if you cannot adjust your trim enough to run optimally on an Outrage 20.
Why do you need to trim negative to run optimally? The more hull you put in the water the more drag. If you cannot get enough negative trim to run through chop, then you should get the wedges. These work.
For the older Outrage hulls - the Banana boats- that have essentially a flat bottom, these hulls need more trim on the negative side to get the bow into chop to reduce bounce and pounding. We have used wedges for this.
My 18 Outrage has plenty of trim range and so does my buddies 22 OR. I don't have experience on a 20'. So Good Luck!
posted 09-03-2001 09:26 AM ET (US)
Thanks for the input - nothing wrong with trim/tilt, it brings the motor down against the adjustable stop which is in the hole closest to the transom. It simply appears to be a quirk with this particular hull which I would like to address short of all the transom piercings necessary for the installation of trim tabs.
posted 09-03-2001 10:02 AM ET (US)
Can't say for sure White Bear -- it could be the '88 Johnson, not that there is anything wrong it's that OMC pt&t didn't offer enough negative trim for some Whalers in the 80's. OMC changed it though but not sure when.
Fester's deep V was a prime example if matched with an OMC motor as he stated above.
Could be the problem, and wedges are the least expensive alternative to try and correct it.
posted 09-04-2001 10:03 AM ET (US)
Thanks, BigZ. I am aware of the T/T problem of insufficient range of adjustment on certain older OMC motors but, like you, am not aware when the problem was corrected. Perhaps someone else on the site knows if the 1988 models were still limited in their trim.
posted 09-05-2001 05:42 PM ET (US)
I've got a 1988 Montauk w/a 2002 90hp Merc. 2 stroke (303 lbs). It needs to be trimmed in more than seems reasonable to prevent porpoising at high speed. I'm wondering if raising the engine one set of holes would eliminate the problem? Have you considered this possibility for your boat?
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