On Fri, 22 Jun 2018 11:08:00 -0700 (PDT), Tim
wrote:


11:21
On Fri, 22 Jun 2018 08:13:12 -0700 (PDT), Tim
wrote:

It sat for a couple years. The transom wood on the pontoon is questionable. I’ve pulled it and will get one made. Pulled th plugs on the engine to do a compression test antbyhey were rusty. Not good. Engine isn’t locked but wondering if the crank and bearings are compromised. So.

On goes the 115. That’s the max the pontoon is rated For anyhow...

What was the compression? If the cylinder walls are rusty, it will be
low. A shot of oil in there will bring it up temporarily. After a
while the rings may even hone them down enough to be serviceable
again. It is actually pretty amazing how bad those old 2 strokers can
be and still run OK. My neighbor gets "dead" ones all the time and
breathes life back into them. This guy has a fleet of boats that Harry
could only imagine and he got them all free or very cheap.

I suppose you might want to go with the 115 if it is a better motor
tho. What is the weight difference?
......

250 on the 85 and 360 for the 115. Plus the 115 is a taller 6cyl. So there’s going to be additional side rocking with it but with this tug it probably won’t matter much.

I also have the big Evinrude 125 but it’s a short shaft and I’d have to change over the controls etc.



Are you sure you even need the long shaft. Most of the toons I see
around here use a short shaft and mine is mounted 4" above stock.
The only place I have trouble is it can blow out on a tight turn if I
have it trimmed up too much.

2:18
On Fri, 22 Jun 2018 11:08:00 -0700 (PDT), Tim
- show quoted text -
Are you sure you even need the long shaft. Most of the toons I see
around here use a short shaft and mine is mounted 4" above stock.
The only place I have trouble is it can blow out on a tight turn if I
have it trimmed up too much.

,,, oh yes. I’m pretty sure. I’ll send a pic to Eddie. How’s that?

On Fri, 22 Jun 2018 12:35:42 -0700 (PDT), Tim
wrote:


2:18
On Fri, 22 Jun 2018 11:08:00 -0700 (PDT), Tim
- show quoted text -
Are you sure you even need the long shaft. Most of the toons I see
around here use a short shaft and mine is mounted 4" above stock.
The only place I have trouble is it can blow out on a tight turn if I
have it trimmed up too much.

,,, oh yes. I’m pretty sure. I’ll send a pic to Eddie. How’s that?

Sure. He doesn't tell me about all of the posts tho. I will be sure to
ask him about it.

On Fri, 22 Jun 2018 20:45:58 -0400, wrote:

On Fri, 22 Jun 2018 12:35:42 -0700 (PDT), Tim
wrote:


2:18
On Fri, 22 Jun 2018 11:08:00 -0700 (PDT), Tim
- show quoted text -
Are you sure you even need the long shaft. Most of the toons I see
around here use a short shaft and mine is mounted 4" above stock.
The only place I have trouble is it can blow out on a tight turn if I
have it trimmed up too much.

,,, oh yes. I’m pretty sure. I’ll send a pic to Eddie. How’s that?

Sure. He doesn't tell me about all of the posts tho. I will be sure to
ask him about it.

I looked at the pictures and I bet you will be fine with a short shaft
on that boat
Optimally the anticavitation plate will be riding at or slightly
below the bottom of the motor pod skid. Yours appears to be 6" below
that.
The skid does seem to be at about the water line based on the mark on
the toons. A heavier motor will even make that lower. The water tends
to well up between the toons at speed so that effective water line is
even higher but it still ends up being the bottom of the motor pod
skid.
http://gfretwell.com/ftp/Tim%20boat.jpg
http://gfretwell.com/ftp/motor%20bracket.jpg

You can see I added 4" to my motor pod transom board to get the motor
up even higher.

The more motor you have in the water, the more drag you are pushing
against. As I say the only problem is you can starve the prop on a
very hard turn if you are going fast, If you are slow enough so it
squats in the turn there is no problem. It is also only on a very hard
turn up on top. You may not go that fast anyway ;-).

wrote:
On Fri, 22 Jun 2018 20:45:58 -0400, wrote:

On Fri, 22 Jun 2018 12:35:42 -0700 (PDT), Tim
wrote:

2:18
On Fri, 22 Jun 2018 11:08:00 -0700 (PDT), Tim
- show quoted text -
Are you sure you even need the long shaft. Most of the toons I see
around here use a short shaft and mine is mounted 4" above stock.
The only place I have trouble is it can blow out on a tight turn if I
have it trimmed up too much.

,,, oh yes. I’m pretty sure. I’ll send a pic to Eddie. How’s that?
Sure. He doesn't tell me about all of the posts tho. I will be sure to
ask him about it.
I looked at the pictures and I bet you will be fine with a short shaft
on that boat
Optimally the anticavitation plate will be riding at or slightly
below the bottom of the motor pod skid. Yours appears to be 6" below
that.
The skid does seem to be at about the water line based on the mark on
the toons. A heavier motor will even make that lower. The water tends
to well up between the toons at speed so that effective water line is
even higher but it still ends up being the bottom of the motor pod
skid.
http://gfretwell.com/ftp/Tim%20boat.jpg
http://gfretwell.com/ftp/motor%20bracket.jpg

You can see I added 4" to my motor pod transom board to get the motor
up even higher.

The more motor you have in the water, the more drag you are pushing
against. As I say the only problem is you can starve the prop on a
very hard turn if you are going fast, If you are slow enough so it
squats in the turn there is no problem. It is also only on a very hard
turn up on top. You may not go that fast anyway ;-).


Nice analysis!