Re: [OMC-Boats] Carb Issue? Or maybe Water issue?

Thanks for the replies everyone. I believe we did look at the Gas Cap Valve
and it seemed to be getting air. I will definitely keep a close eye on that
next time out.
We did have an issue with the points a while back, no spark, so we cleaned
off the contact and that did the trick. I'll pop the cap and check the
spring tension, I wonder if there is an adjustment for this or something
that would just need to be replaced.
J

----------------------------------------
From: "BLDFW" <bldfw@...>
Sent: Friday, June 26, 2009 4:55 PM
To: "Evinrude & Johnson Boats of the 1960's and 70's"
<omc-boats@...>
Subject: Re: [OMC-Boats] Carb Issue? Or maybe Water issue?

You might also check the points to insure you don't have point float going
on. Point float usually occurs at higher rpm's and is caused by a lack of
adequate point spring tension causing the points to sometime not close all
the way.

-Bill
Dallas, TX
1970 Evinrude Explorer - 155 Buick V6 - OMC Sterndrive
http://www.photobucket/evinrude_explorer

--- On Fri, 6/26/09, Jeff LaCoste <heavy@...> wrote:

From: Jeff LaCoste <heavy@...>
Subject: [OMC-Boats] Carb Issue? Or maybe Water issue?
To: "Evinrude & Johnson Boats of the 1960's and 70's"
<omc-boats@...>
Date: Friday, June 26, 2009, 5:41 PM

After many weeks of slower rides
 around the lake, last week I took the 1964 Johnson Deluxe V6 155hp out
into open water to run it and see what would happen. Got off to a slow
start and steadily climbed up to 3/4 throttle for a couple miles when it
started to cough, once, then twice, so we slowed and turned back for the
dock. It seemed to be running smooth once again, so we increased the speed
and once again it coughed and sputtered.

We took off the cover and idled for a bit and after a while it quit and
wouldn't start. We waited and tried again but nothing. We thought maybe
over heating, or no gas. We noticed the Barr exhaust manifolds were a
little warmer than usual, bottom hoses were warm, top were cooler.
Thermostat was replaced last year. We were getting good flow from the back
stream. Water flow seemed a little low in the large water Gates hose when
squeezed.

When cranking the engine we couldn't see much fuel going into the carb.
Fuel was supplied by a 6 gallon tank
 (temporary while refurbishing the old tank) connected to the mechanical
fuel pump.

The other day I go out to start troubleshooting, get in the boat, turn on
the water to the stern drive, and it fires right up! Go figure.

Could be overheating. Maybe the float needs to be adjusted, if so do I bend
the tang up or down? Last year I replaced the float with a new one that had
a pinhole.

anyone have any thoughts before I try it out again this weekend?

thanks.
Jeff

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Received on Friday, 26 June 2009