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Rotted Transom and where to put lower mounting holes??
December 25, 2015
12:26 pm
Folzie75
New Member
Forum Posts: 1
Member Since:
December 25, 2015
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I recently picked up a 1989 16' Wahoo dual console. Unfortunately after I bought it and looked at the transom closer, I realized it had several different holes (8 total) in the transom to mount the motor, most of which were filled with 4200 or something similar. After removing them, I quickly realized the plywood inside was mush. Ironically I bought this boat because my fiancee has an old AMF crestliner with a rotted transom that we didn't want to fix. It had an 80's 70hp Johnson that still runs like a champ and this boat seemed like a great fit for it and could get us back on the water.

So, I found a guy in town who will remove the top of the transom, get all the rot out and fill it with Seacast. We are only going to do the middle section of the transom as the sides seem pretty solid. He'll do it for $650 which seemed reasonable to me and thus I'm not going to bother trying to do it myself, material alone is probably $300.

So my main question is what does everyone do with these boats as far as the lower mounting holes for the motor? If you use the standard BIA hole locations, the bottom bolts are going to be under the splash well which would really be a challenge to deal with thru the small circular hatch. Plus it appears the previous owner must have squirted a full tube of something really hard, maybe 5200?, through each lower motor hole which built up two huge balls inside the transom below the splash well. He was using large lag screws in the lower holes, no nut, just blind holes which seemed like a really bad idea to me and I'm guessing contributed to water getting in the transom. The upper most set of lower holes is only 5.5" below the top holes, but does go thru the transom above the splash well. But in order to use those, I'd have to set the motor really high or use some kind of jack plate or adapter. The only other option I can think of is to enlarge the back hatch from a circle to something rectangular to gain more access to drill counter bores in the two large epoxy balls under the splash well. If I could get the counter bores deep enough until I got back to the inner fiberglass, then I could run a normal bolt/nut through it.

Any help would be greatly appreciated! I have not run into this in my limited boating experience. Can't wait to get this guy up and running and get on the water.

August 3, 2016
8:29 am
BoatFund
Member
Forum Posts: 7
Member Since:
June 13, 2016
Offline

Did you ever get any information on this??? It seems very strange that the mounting holes would end up in the bilge.

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