Re: [OMC-Boats] The Submarine Effect

Basically the "Submarine Effect" is most pronounced on the open bow models, and in particular the 64 to 68 16-ft models. It's one reason OMC engineers designed in 4-inches of additional keel depth in the 69-70 16-ft hulls. To me this makes those boats look like sawed off 19-fter out of water, but the handle better and a 2-mph faster in the water with the benefit of a slightly softer ride owing to greater vee effect at the stern.

You don't even need 6-ft seas. All you need is 4 to 6 passengers in the boat and wake speeds (before the bow starts to come up) and 1-1/2 ft waves. Anyone sitting in the bow area is in for a good bath. It's something a good skipper gets used to. I actually consider it one of the "fun" features of my boat, not a weakness. Just remember Andy's advice, keep the bow pointed into the waves, so you won't get rolled. I often anticipate this, by bumping the bow with the throttle and then backing off again, but be careful you don't throw an unprepared passenger overboard out the back!

I would highly recommend the installation of a automatic bilge pump float-switch. These require a simple re-wiring and additional fused-protected circuit. Once you've added this switch and circuit properly you won't have to have your kid "lean on the switch." If you leave your boat (wet) docked, it will also pump out water that sloshes in, or keep the boat from sinking in the rubber boot is chewed through by the "mythical beaver." Of course, you do have to keep an eye on battery charge levels but this is something you already so, right?

Lee

On Mar 25, 2010, at 8:56 PM, Andy Perakes wrote:

> Certainly not intentionally, but when you boat on a large body of water eventually you will get caught, especially when the nearest safe harbor is over ½-hour away in good conditions. I’ve only gotten caught out ~3 times over 40 years and I’d say 2 of those were because I stopped to help others who were in trouble.
>
>
> From: omc-boats-bounces@... [mailto:omc-boats-bounces@...] On Behalf Of mike.s.sweeney@...
> Sent: Thursday, March 25, 2010 10:35 PM
> To: Evinrude & Johnson Boats of the 1960's and 70's
> Subject: Re: [OMC-Boats] The Submarine Effect
>
> You take a 16 foot boat into 6 foot seas?..
>
>
> ----- Original Message -----
> From: "Don Mandelas" <dmandelas@...>
> To: "Evinrude & Johnson Boats of the 1960's and 70's" <omc-boats@...>
> Sent: Thursday, March 25, 2010 9:07:01 PM GMT -06:00 US/Canada Central
> Subject: Re: [OMC-Boats] The Submarine Effect
>
> This opens up a whole new topic for me.
>
> Last year, for the first time, 8 inches of water came pouring in over the bow and left me ankle deep in water (inside the boat!). It scarred the hell out of me! I had my Nephew hold his hand on the bielge pump switch for a long time while I drove, and keeping the boats bow up, in order to get the water out. After that I went straight home.
>
>
> What the heck happens when a 6 foot wave comes crashing over the bow in a sportsman or reveler? How does one recover after that?
>
> Sheeeesh,
> Don.
>
> From: aperakes@...
> To: omc-boats@...
> Date: Thu, 25 Mar 2010 21:36:08 -0400
> Subject: Re: [OMC-Boats] FW: Bearings and tires
>
> Wow, lots of messaging today! Just a couple of points to add:
>
> When shopping for trailer tires last year I found there was HUGE variation in price. I needed standard 12” tires (for my SeaDoo) and the prices ranged from $40 to a whopping $140 for the exact same tire. To my surprise, the best price was at a regular tire store for cars (Belle Tire, a chain in the Midwest)—one I almost didn’t even bother to check. Yes, they had to order them and I had to wait a few days, but the $200 was worth it. (Btw, they were $100 more expensive than Costco for the Michelins I wanted on my car.) An RV/Camper store was the highest with the ATV/SeaDoo dealer not much better. Trailer stores and online were marginally better than Belle.
>
> Also, and this may be obvious to most, but I thought I’d mention it in case there are some that don’t know, never leave home without a tire plugging kit (http://www.autobarn.net/vicv106.html, for example). As long as the sidewall isn’t damaged, nail, screw, and other punctures are very easy 5-minute (literally!) repairs with these kits. Just beware the plug is not as robust as an unaltered tire and if you push it to its load/speed limit it is more likely to fail than an unplugged tire. Under normal use it will easily last the life of the tire.
>
> Coincidentally, I got word today that my stern drive has been fully rebuilt and is ready for pick-up. $730 + $65 for the forward clutch off eBay. Pretty reasonable considering all the other parts (oil, seals, etc.) he had to supply. I haven’t had time to do squat all winter so there’s no way I would’ve gotten to it myself and I’m glad its done. Now if this ice jam would just break up I’d be all set!
>
> Andy Perakes
> ’67 Reveler 155 (aka “Lee’s surrogate submarine” – but you haven’t lived until you’ve taken a 6-footer over the bow or stern!)
>
>
> From: omc-boats-bounces@... [mailto:omc-boats-bounces@...] On Behalf Of BC Howk
> Sent: Thursday, March 25, 2010 7:39 PM
> To: omc-boats@...
> Subject: Re: [OMC-Boats] FW: Bearings and tires
>
>
> WOW, thanks Don, someones been paying attention and tracking the details!!!
>
> OK I found my reciept from my wheel swap:
>
> 3ea. B78-13/6 high speed boat trailer tubeless (the tires)
> 3ea 8035512 13x5.5 5-4.5 allied type 80 white spoke RWD (these are the rims 13 inch x5.5 inch wide 5 lug with a 4.5 inch pattern)
> 3ea tubles valve stems
> 10 lug nuts (yes they are 5 lug rims)
> 2 centercaps (just cuz they were pretty)
> 2 bearing/seals
> 1 labor for packing bearings
>
> total $346.03 I think I paid the machinist $70 bucks to turn down the hubs
>
> this works great on my 16' trailer with the torsion bar suspension (no brake option, but OMC did offer a hydraulic disk brake option on the 16' according to my orig trailer manual....
>
> Cheers,
> B.C.
>
>
> Mar 25, 2010 04:23:09 PM, omc-boats@... wrote:
>
> I'm gonna send Richard and Chuck a cigar!
> Thankyou, that is exactly the information I was hoping to receive.
> I'm going to head to my local Bearing retailer tommorow.
>
> Now, in order to nail this Evinrude/Johnson trailer information to the wall I'm going to recap what I've learned so far;
>
> Regarding the 1967 Evinrude/Johnson 16 foot trailer (with tortion suspension)(manufactured without brakes) the following apply.
>
> Hub is 4 post
>
> Tire size is 6.90 x 9
>
> Originally had 10 ply nylon tires. (rated for a maximum of ???? pounds)
>
> Fairly easily available today are 6 ply tires which are rated for a maximum of 1120 pounds each (and this makes them a bit overloaded for hauling a 67 sportsman boat).
>
> Trailer will accept tire size St175/80D-13 but the original trailer hub will need to be machined slightly to accept this new tire size and it's corresponding new rim. (BC Howk is this a 4 or 5 hole rim?)
>
> Or, another Option is to replace the whole axle assembly with a new modern torflex axle and its corresponding components.
>
>
> Inside Bearing
> Seal (hub) = OMC part 901288 (C/R 12124 Seal)
>
> Bearing cup (Race) = OMC part 900474 (Temken part L44610)
>
> Bearing cone (Bearing) = OMC part 975596,
> (According to Chuck, = Temken part L44643) ?
> (According to Richard, = Temken part L44649) ?
>
>
> Outside Bearing
> Bearing cup (Race) = OMC part 900474 (Temken part L44610)
>
> Bearing cone (Bearing) = OMC part 975596,
> (According to Chuck, = Temken part L44643) ?
> (According to Richard, = Temken part L44649) ?
>
>
>
>
> Regarding the 1967 Evinrude/Johnson 16 foot trailer (with tortion suspension)(manufactured with brakes) the following apply.
>
> Hub is 5 post
>
> Tire size is ____x___
>
> Did these Originally have 10 ply nylon tires? (rated for a maximum of ???? pounds)
>
>
> Inside Bearing
> Bearing cup (Race) = OMC part 900474 (Temken part L44610)
> Bearing cone (Bearing) = OMC part 975150 (Temken part ?????? )
> Seal Brake Drum = OMC part 975149
> Retainer Grease = OMC part 900521
>
> Outside Bearing
> Bearing cup (Race) = OMC part 900475 (Temken part ??????)
> Bearing cone (Bearing) = OMC part 975151 (Temken part ??????)
>
>
>
> Tires
>
> Tire size 6.90 x 9 10 ply cost;
> Around $80.00 in Denver
>
> Tire size 6.90 x 9 6 ply cost today 6-24-2010;
> $62.14 each in Washington State.
> $125 in St. Louis.
> $150 a pop in Oregon.
>
> Tire size ST175/80D-13 by nanco......good, cheap, common trailer tires on 13 inch wheels....fit nicely under the stock trailer with origional fenders (with slight modifications to Original Evinrude Trailer Hubs)
> Cost is approximately ???.
>
> Have I got this right?
>
> Thanks for all the information,
> I appreciate it.
>
> Don.
>
>
>
>
>
>
> > From: cbreen5510@...
> > To: omc-boats@...
> > Date: Thu, 25 Mar 2010 13:10:36 -0400
> > Subject: Re: [OMC-Boats] Bearings and tires
> >
> > Here are the numbers off the bearings, race and seals
> >
> > Trailer Bearing Numbers
> > Timken L44643 Bearing
> > Timken L44610 Race
> > C/R 12124 Seal
> > Tires are still made by Carlisle around $60.00 each from a tire dealer
> > they are 6 ply not 8 ply. I pulled a boat and trailer back from
> > Hackensack, Mn to without problems except the guy thT was supposed to
> > REPLACE the bearings and repack DIDN'T.
> > Good luck
> > Sent from my iPhone
> > Chuck Breen.
>
>
>
>
>
>
>
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Received on Friday, 26 March 2010