I've had it

[beanz2166]

Re: I've had it

The timing signal is taken from spark plug #1, so the fact that 6 and 8 were crossed should have no bearing on the setting of the timing. That said.... I'd be checking everything that mechanic did very carefully. Then find a new mechanic....

Chris......

Ok since he retarded the timing 1.5 degrees should I leave it alone or should I take it and get it set back to what it should be?

 

[achris]

Re: I've had it

Ok since he retarded the timing 1.5 degrees should I leave it alone or should I take it and get it set back to what it should be?

I would change it back to what it should be... 8?BTDC....

 

[04fxdwgi]

Re: I've had it

Glad you figured it out and didn't spend a bunch of cash on uneeded parts.

But I am a bit curious... If the plug wires on 6 and 8 were crossed, why would there only be a "miss" in a very narrow RPM range of " The rpm range is getting smaller now its only 2300-2700ish ", as you stated. Should have been horriffic at lower RPMS and probably popping thru the carb. And would have been there all the time, through out the RPM range.

 

[tpenfield]

Re: I've had it

someone get this guy a beer, you Sir are a Genius! upon review once again, I found that the 6 & 8 wires were switched. havent load tested the boat yet (thats tomorrow) but hooked up the muffs and for the first time the boat fired right up without a pop bang or any other un-normal sound. tomorrow cannot get here soon enough. somehow my mechanic missed this during my two visits to him. now this leads me to this question, since my timing was set with the miss, will it matter now that everything is setup correctly?

Wow . . . I have been following this thread to see how it played out . . . Eric the Genius . . . :thumb:

Of course, this speaks poorly for the mechanic . . . I guess you will be seeking a different one going forward.

 

[OldNBold51]

Re: I've had it

Glad you figured it out and didn't spend a bunch of cash on uneeded parts.

But I am a bit curious... If the plug wires on 6 and 8 were crossed, why would there only be a "miss" in a very narrow RPM range of " The rpm range is getting smaller now its only 2300-2700ish ", as you stated. Should have been horriffic at lower RPMS and probably popping thru the carb. And would have been there all the time, through out the RPM range.

Kind of what i was wondering. I bet it ran like a dog.

 

[littlebookworm]

Re: I've had it

I wouild agree that it probably ran poorly; but, this is his first boat so he may not have known that it wasn't running the way it should have been running. Now, thanks, to you guys, he knows how well his boat can run and that he needs a different marine mechanic. By the way, any half-way decent auto mechanic would have checked the routing of the ignition wires. It's not that difficult to switch two wires which are right next to each other and under the exhaust manifold. I'd seen it more than once years ago when I was an auto mechanic. I wouldn't bring my car to that guy for repairs, never mind my boat. Hy

 

[ckirk]

Re: I've had it

I just finished reading this thread and it's another great example of how the simple solution is most often the correct one, usually the least expensive to repair, and almost always the most overlooked. It's a good thing you didn't take it back to the shop, the mechanic probably would have told you that you had a vacuum leak due to a leaky intake manifold gasket and the proceed to charge you to replace it. My father has always told me that the best way to keep your car (I also include my boat) out of the shop is to keep it out of the shop.