Posted by hullinthewater on 05/03/14 - 9:32 PM
#1
I was searching and came across an excellent article from 12/2012 by 'wlagarde' on his transom rebuild and old transom holes and the BIA hole template. He included the Old?New hole template schematic someone here at WC put together (Joe?).
In the process of having a 2014 Yamaha F70 put on, and having the old hole layout from an '87 Yamaha 40, the lowers holes appear to be useless, or are they?
Before purchase of this 2014 F70, I removed the old 1987 40hp and oversized the mount holes, then lined them with Westsystem resin before remounting it. From the pics by 'wlagarde', it looks like the F70 engine bracket, if similar to his (Nissan?), may not cover the old lowers.
If possible, I would just add a bit more Westsystem resin lining to them and use them as either extra splaswell drains or pass-thrus for tranducer-whatever else sender lines, if not blocked by new F70 bracket.
I noticed in the 'wlagarde' photo album, he also went with the Green holes, and if I'm not mistaken, he had the same 'old layout' I have. I also noticed he now has run his transducer and another sender line thru each of his splashwell drain holes.
So, could the 'old layout' lower holes be used as a pass thru for sender lines?
Related question:
In my 2014 F70 install on this 1987 Super-tauk, the upper holes remain and the 'Green' holes were newly drilled, which locates them about 1-1/4" from the bottom hole edge to bottom of splashwell. Plenty of room for the 1-1/2" circular washer.
So the question is: with the 'Green' hole layout, is there a limitation in raising the motor to the bottom hole of the F70 bracket?
I may have 'boxed myself in', since I instructed my installer to drill the green holes, but now see that if I had used the 'Yellow', I might have additional range in raising the F70 all the way up. Am I missing something here?
BTW: My hull is "3C8035"; a 1987 SuperSport, which I mod'ed to a Montauk type clone, for anyone keeping track of transom hole layout/splashwell fit.
Believe it or not, for the boat not yet being in the water, I'm having fun.
Thanks for your comments,
Joe
Posted by hullinthewater on 05/03/14 - 11:29 PM
#2
EDIT:
the upper holes remain and the 'Yellow' holes were newly drilled, which locates them about 1-1/4" fr/bottom of splashwell...
Sorry I typed too soon; I went back and re-read my OP and realized I actually had the installer drill the 'Yellow' holes. However, the location is still the same in relation to the bottom of splashwell- about 1-1/4".
So, still wondering if this lower 'Yellow' hole will limit the amount I can rasie the 2014 F70?
Posted by Joe Kriz on 05/04/14 - 12:35 PM
#3
hullinthewater,
You can always raise the motor all the way up no matter whether you drill the Green or Yellow holes. (or even the Red if you have the deeper splashwell)
On your year model, I believe the splashwell was designed to drill the Red holes for the "Standard BIA" mounting.
The Yellow and Green holes were for earlier models that had a shallower splashwell.
The first 17' hulls that had the deeper splashwell was about 1987 but could be even earlier.
See this members 1987 17' hull and view the comments at the bottom.
http://www.whalercentral.com/infusion...r_id=18198
The motor is mounted all the way down in the last photo and shows the standard bolt hole pattern which would have the Red holes drilled at the bottom.
As always, measure both the inside and outside of the transom before drilling any of the holes in this diagram.
http://www.whalercentral.com/articles...icle_id=82
Posted by hullinthewater on 05/04/14 - 4:08 PM
#4
thanks Joe.
I believe the red holes would have cleared the bottom of splashwell on my 1987 SuperSport, but the washers would have needed to have been cut to clear. I thought that would have looked a bit bush-league [no offense to anyone w/cut washers], especially when not necessary.
The 'yellow' holes seemed to be the logical alternative to keep the load spread out as much as possible. Glad to know that I can still go up a few holes.