Re: [OMC-Boats] Blower on '67 Johnson Surfer? from Lee Shuster on 2009-08-27 (OMC-Boats Mailing List Archive)

From: Lee Shuster <Lee.Shuster@...>
Date: Thu, 27 Aug 2009 15:30:33 -0600

Like I said only the questions that don't get asked are the dumb ones!

Seriously, Inboards or Inboard outboards have no natural air ventilation, as they would in a car that tends to dissipate volatile (explosive) vapors.

This fuel (gasoline) vapors are heavier than air and tend to "fall" to the lowest point in the enclosed engine compartment.

Running a marine-approved blower a few minutes before starting an engine can help evacuate the vapors from the engine compartment. You might also want to look into installing a vapor detector. See:
http://www.westmarine.com/webapp/wcs/stores/servlet/westadvisor/10001/-1/10001/Vapor-Monitors.htm

Marine-approved devices that are "Instrically Safe" are also important for Distributors, Alternators, Starter Motors, Fuel Pumps and Carb Flame Arrestors to prevent explosions and Fires. Never replace these items with inexpensive "Auto-Zone" automotive replacement parts or you might find you and your passengers getting launched into the "Twilight-Zone."

Take Safety Seriously.

________________________________
From: omc-boats-bounces@... [mailto:omc-boats-bounces@...ultimate.com] On Behalf Of Greg Tabers
Sent: Thursday, August 27, 2009 3:19 PM
To: Evinrude & Johnson Boats of the 1960's and 70's
Subject: Re: [OMC-Boats] Blower on '67 Johnson Surfer?

Thanks everyone for the input. I really appreciate it. Yeah I printed this wiring diagram already and it didn't show a blower from what I can remember. (I may be wrong) This is my first boat, so pardon the ignorance, but what is the purpose of the blower?

Thanks again,
Greg

--- On Thu, 8/27/09, Lee Shuster <lks@...> wrote:

From: Lee Shuster <lks@...>
Subject: Re: [OMC-Boats] Blower on '67 Johnson Surfer?
To: "Evinrude & Johnson Boats of the 1960's and 70's" <omc-boats@...mate.com>
Date: Thursday, August 27, 2009, 12:09 PM

Wiring Link left-off last msg: sorry:

http://www.hhscott.com/evinrude/images/wiring/68_v6_ALL_WIRE.jpg

Most browsers will CLICK-to ZOOM IN for close-up viewing

On Aug 27, 2009, at 1:04 PM, Lee Shuster wrote:

As originally built by OMC, your boat's combo Bilge Pump/Blower was located in the bilge "cutout" located directly under the engine oil pan. It's fairly common for these to get tossed as there is no similar combo product offered today, most likely because a combo product might not meet current ABYC standards. So might not be able to find it, because it's long gone. But the original wiring and switch is most likely still in tact.

You cab view the original factory OMC wiring diagram here (your boat will be wired identically). BTW, it was extremely RARE for any boat manufacturing to build and DOCUMENT their products' electrical systems in the Sixties, as OMC did.
It's just another reason the old gals are worth saving, IMHO.

You will need to install additional wiring/using/switch to accommodate both a ventilation blower and a new dedicated bilge pump.

IMHO, the best way to do this is install the new blower on the EXISTING helm switch and use a new switch/wiring/fuse for the new BILGE pump. I'd highly recommend a AUTO float-sensor switch with a 3-POSITION SPDT SWITCH, (SPRING LOADED, MOMENTARY ON). THIS WAY YOU CAN SELECT AUTO - OFF - MANUAL. FOLLOW THE wiring instructions from the float/bilge pump and you'll be fine. Use the recommended Marine wiring colors, so the next owner has a clue what you've done or better yet document you work with a diagram or drawing, like OMC did.

I'm often surprised by how much water accidently "splashes" into the bilge. But with a float-switch and the helm switch in AUTO -- it's a no brainer.

Lee

On Aug 27, 2009, at 11:53 AM, Greg Tabers wrote:

Sorry, let me clarify. Just read my first post and I can see some confusion in my wording. My question is if there is a blower, where does the wiring go from the toggle and where is the blower located?

--- On Thu, 8/27/09, BreAnne Upcott <h2onsnow@...</mc/compose?to=h2onsnow@...>> wrote:

From: BreAnne Upcott <h2onsnow@...</mc/compose?to=h2onsnow@...m>>
Subject: Re: [OMC-Boats] Blower on '67 Johnson Surfer?
To: "Evinrude & Johnson Boats of the 1960's and 70's" <omc-boats@...mate.com</mc/compose?to=omc-boats@...>>
Date: Thursday, August 27, 2009, 10:13 AM

Your blower should be tied in with the bilge pump. Same switch on the dash as the bilge.

On Thu, Aug 27, 2009 at 12:38 PM, Greg Tabers <gtabers5572@...> wrote:
I have been trying to figure out where the toggle goes for the blower on my boat. When I checked the wiring diagram though it doesn't show the blower. Is there a blower on the boat or not? If there is, can someone tell me where to trace it to.

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Received on Thursday, 27 August 2009