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

I had the same problem with my boat, it seems that the gas lines had become soft from the gas additives of today and would collapse under heavy throttle. You might want to check all the rubber gas lines....jkf

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

From: heavy <heavy@...>
Subject: Re: [OMC-Boats] Carb Issue? Or maybe Water issue?
To: "Evinrude & Johnson Boats of the 1960's and 70's" <omc-boats@...mate.com>
Date: Friday, June 26, 2009, 8:36 PM

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@...mate.com>
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@...mate.com>
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 Saturday, 27 June 2009