[OMC-Boats] Overheating issues

How are you getting water to the engine in your tests? And when you
say water pump are you talking about the one on the engine or the one
in the outdrive?

We found that when we ran a garden hose to the outdrive (stuck into
the round opening in bottom of outdrive foot, fits perfectly w/ no
ears needed) the pressure overcompensated for a bad impeller housing.
So it would run cool on a hose but could not pick up enough of its
own water. We diagnosed this by running it in a big tub of water
rather than w/ the pressure of the hose.

-Micah

On Sep 19, 2007, at 12:00 PM, omc-boats-request@...
wrote:

> Send OMC-Boats mailing list submissions to
> omc-boats@...
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://lists.ultimate.com/mailman/listinfo/omc-boats
> or, via email, send a message with subject or body 'help' to
> omc-boats-request@...
>
> You can reach the person managing the list at
> omc-boats-owner@...
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of OMC-Boats digest..."
>
>
> Today's Topics:
>
> 1. Re: Looking for the correct Thermostat (heavy)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 18 Sep 2007 14:57:24 -0400
> From: "heavy" <heavy@...>
> Subject: Re: [OMC-Boats] Looking for the correct Thermostat
> To: <omc-boats@...>
> Message-ID:
> <8439d3333f5e46ec9393b4b7dadf95fd@...>
> Content-Type: text/plain; charset="iso-8859-1"
>
> If your Stat is at 160, when does it ever get the chance to turn over?
>
> My stat is at 160 too, and the temp in the drive way got up to 150,
> but never higher. I could tell something wasnt right because after
> I shut the engine off for a minute or two, and started back up, the
> engine dragged on restart. I also checked the hose setup, I have a
> newly installed BARR heat exhaust setup so my plumbing lines are
> simple. Run the back 2 inlets from the rear to the front top 2 stat
> housing nipples, run the lower two nipples to the heat exhaust. I
> also checked the front water pump and it had water, I added more
> and it ran out the stat housing so its open. Now I am thinking it
> might be the water pump, although its new. I m gonna get it out
> there on the water today and see what happens, it already feels
> like fall up here in Seattle.
>
> jeff
>
> ----------------------------------------
> From: "Lee Shuster" <lee.k.shuster@...>
> Sent: Friday, September 14, 2007 1:56 PM
> To: "Evinrude & Johnson Boats of the 1960's and 70's" <omc-
> boats@...>
> Subject: Re: [OMC-Boats] Looking for the correct Thermostat
>
> I think the OMC OEM part no was 383307. Not sure but I think they are
> rated @... 150 F or maybe 160 F.
>
> I have a calibrated (digital) temp gauge I see 140 F at warm idle and
> 150-ish when cruising pretty hard.
>
> Lee Shuster
> Salt Lake
>
> -----Original Message-----
> From: omc-boats-bounces@...
> [mailto:omc-boats-bounces@...] On Behalf Of Jeff
> LaCoste
> Sent: Thursday, September 13, 2007 12:29 PM
> To: omc-boats@...
> Subject: [OMC-Boats] Looking for the correct Thermostat
>
> Hi all,
> Anyone know what the correct Thermostat is for a Buick Oddfire V6,
> 150hp?
> (boat is a 64 OMC deluxe) I called around and most of the books
> just go
> to the early 70's. Also, is it safe to run without a thermostat if I
> cant find one??
>
> Thx,
> Jeff
>
> _______________________________________________
> OMC-Boats mailing list
> OMC-Boats@...
> http://lists.ultimate.com/mailman/listinfo/omc-boats
> _______________________________________________
> OMC-Boats mailing list
> OMC-Boats@...
> http://lists.ultimate.com/mailman/listinfo/omc-boats
>
>
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: http://lists.ultimate.com/pipermail/omc-boats/attachments/
> 20070918/16959bea/attachment-0001.html
>
> ------------------------------
>
> _______________________________________________
> OMC-Boats mailing list
> OMC-Boats@...
> http://lists.ultimate.com/mailman/listinfo/omc-boats
>
>
> End of OMC-Boats Digest, Vol 5, Issue 9
> ***************************************
Received on Wednesday, 19 September 2007