Re: [OMC-Boats] Cooling issue

Nope. There are two larger diameter hoses, one for each manifold, that
connect from the stern-side of the manifold to the intermediate housing.

Also, the two smaller hoses on the front of each mainfold that run up
to the T-Stat housing:

MAKE sure they are "FLIPPED." BOTTOM on MANIFOLD to TOP of T-STAT
Housing. SAME on both sides.

This insure that the water-jacket surrounding the manifold gets
adequate supply of water.

The factory BRP/OMC (still available on OMC Website) have great 2-
color fold out diagrams of the cooling system. Highly recommended.

Lee

On Aug 31, 2009, at 4:40 PM, Justin DeSantis wrote:

> Please excuse me. I didn't realize there was an archive. I'm looking
> through it now, but it's slow going for lack of a search function. But
> I am looking. Just so I'm sure we're talking about the same hoses, do
> you mean the 4 hoses that go from what looks like the thermostat
> housing to the manifolds? When you said rear of the manifolds, I got
> confused. You mean the end of the manifolds closest to the front or
> rear of the boat? The only ones I'm seeing are the 4 towards the end
> of the manifold facing the bow of the boat.
> Does that make sense?
>
>
>
> On Mon, Aug 31, 2009 at 5:58 PM, BLDFW<bldfw@...> wrote:
>> Would be nice if we had some archives we could refer to but at the
>> risk of
>> repeating a suggestion, you might consider installing clear hoses
>> that feed
>> from the internediate housing to the rear of the exhaust
>> manifolds. As long
>> as those stay full of water, you should be good to go! If they
>> don't, you
>> know you have an impeller problem.
>>
>> -Bill
>> Dallas, TX
>> 1970 Evinrude Explorer - 155 Buick V6 - OMC Sterndrive
>> http://www.photobucket.com/evinrude_explorer
>>
>>
>> --- On Mon, 8/31/09, Justin DeSantis <duc1098desmo@...> wrote:
>>
>> From: Justin DeSantis <duc1098desmo@...>
>> Subject: [OMC-Boats] Cooling issue
>> To: "Evinrude & Johnson Boats of the 1960's and 70's"
>> <omc-boats@...>
>> Date: Monday, August 31, 2009, 4:44 PM
>>
>> Let me bounce this issue off the wise old list.
>>
>> So I finally figured out which hole in the outdrive is the "pisser"
>> hole. It's directly under the plate that covers the outdrive pivot on
>> the drivers side of the boat. Here's my issue. I have no water coming
>> out of it. As in none. I do have a slight dribble coming out from the
>> cover above the hole. Just a real slow drip. Easy fix. But, the lack
>> of water through the tell tale hole bothers me. Can it just be
>> clogged? I ran the boat on the hose for about 5 minutes, maybe a
>> little more. No water. Didn't seem to be over heating. I can get the
>> IR thermometer out and take some readings to be sure.
>>
>> My question is this, I wanted to take this thing to the river
>> tomorrow
>> for a test run. Before I go, I want to make sure I have water flowing
>> where I should. Is there a way to double check the "tell tale" hole?
>> Someplace else I can look for flow? Maybe pull a hose?With my IR
>> thermometer, where should I take readings and what should they be?
>>
>> I can tell you this, there is 2 cooling hoses going to each side of
>> the engine. On each side, one was hot, the other was cooler. Is this
>> significant?
>>
>> I'm know if I don't have flow that impeller is already garbage just
>> from the running I've done to tune it up. Which went well. it's purrs
>> and idles smooth as can be. But, if water wasn't flowing, wouldn't I
>> have noticed it over heating by now?
>>
>> Any input would help me avert a meltdown. As always, thank you all!
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Received on Monday, 31 August 2009