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08 Turns Over No Start

Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=41801
Printed Date: April-29-2024 at 1:01pm


Topic: 08 Turns Over No Start
Posted By: helpingjoe
Subject: 08 Turns Over No Start
Date Posted: August-21-2017 at 5:32pm
Thanks for any help. My 2008 Air Nautique will turn over but not crank. It was running fine but died like it ran out of fuel. I still had fuel. Changed the filters and it wouldn't crank. Disconnected the fuel return line and no fuel when trying to crank. Installed new HP pump and now lots of fuel and good pressure, checked it at the Schrader valve and it sprays fuel 7 feet. When it turns over it wont even hit a little bit. Is there something that needs to be reset or anything? Please Help

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Helping Joe (my boss)



Replies:
Posted By: Hollywood
Date Posted: August-21-2017 at 5:48pm
Turning over = cranking

Your safety lanyard/kill switch functioning properly?


Posted By: 8122pbrainard
Date Posted: August-21-2017 at 6:10pm
Originally posted by Hollywood Hollywood wrote:

Turning over = cranking

The term "cranking" to turn over an engine coined from the old days!



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64 X55 Dunphy

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Posted By: WinterTurtle
Date Posted: August-21-2017 at 6:25pm
you've checked spark - yes?

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1979 Southwind 18 351w

Not Running - All Potential!


Posted By: helpingjoe
Date Posted: August-21-2017 at 6:29pm
Yes sir I check it and it's working fine.

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Helping Joe (my boss)


Posted By: WinterTurtle
Date Posted: August-21-2017 at 6:30pm
Another thing to consider - I once had an old Honda that came in not running. Previous guy had done a lot of cranking trying to start it. Once I got spark back it still didn't want to fire more than a little bumping. Turns out all that fuel had soaked out the oil from the rings and compression was terrible. Popped the plugs and added a little bit of oil to each cylinder and it came back to life.

All that to say be careful with loads of cranking. It can lower compression and contaminate oil and such.. If you've cranked a lot in this process you may want to change the oil once she runs for you again.

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1979 Southwind 18 351w

Not Running - All Potential!


Posted By: helpingjoe
Date Posted: August-21-2017 at 6:31pm
No I haven't checked the spark plugs, Im not really sure how too (showing my intelligence)

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Helping Joe (my boss)


Posted By: WinterTurtle
Date Posted: August-21-2017 at 6:31pm
Do you have a compression gauge to test that?

I pick up that some here don't like using ether -- but have you given it a spritz of starting fluid to see if it fires with that?

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1979 Southwind 18 351w

Not Running - All Potential!


Posted By: WinterTurtle
Date Posted: August-21-2017 at 6:34pm
Originally posted by Hollywood Hollywood wrote:

Turning over = cranking

Your safety lanyard/kill switch functioning properly?


Mine pre-dates this kind of thing but out of curiosity with lanyard removed will the boats turn over with the starter if so equipped?

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1979 Southwind 18 351w

Not Running - All Potential!


Posted By: helpingjoe
Date Posted: August-21-2017 at 6:34pm
Thank you I'll try that I know the oil hasn't been changed in a long time anyways


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Helping Joe (my boss)


Posted By: WinterTurtle
Date Posted: August-21-2017 at 6:35pm
Originally posted by helpingjoe helpingjoe wrote:

No I haven't checked the spark plugs, Im not really sure how too (showing my intelligence)


Meh I'm as dumb as a sack of potatoes but get a lot done -- just experience!

Personally I'd try starting fluid to see if I got fire first and go from there.

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1979 Southwind 18 351w

Not Running - All Potential!


Posted By: helpingjoe
Date Posted: August-21-2017 at 6:35pm
Yes it will turn over with it removed. That's actually how its acting right now, turn over but no fire.

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Helping Joe (my boss)


Posted By: helpingjoe
Date Posted: August-21-2017 at 6:37pm
I did spray some starting fluid through the fame resistor and all I got was a big back fire type of sound


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Helping Joe (my boss)


Posted By: helpingjoe
Date Posted: August-21-2017 at 6:39pm
Is there any type of reset or fuse that might would cause this that anyone knows about?


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Helping Joe (my boss)


Posted By: 63 Skier
Date Posted: August-21-2017 at 6:51pm
Kill switch - engine will turn over, start, and die after a few seconds. I'd definitely verify the kill switch is working with a meter to eliminate that possibility.

Compression - I've never experienced the washing and loss of compression you are describing. Not saying it can't happen, just think it's VERY unlikely to be the problem.

Easy way to check for spark is to remove a spark plug, re-attach the boot to it, and ground the outside metal part of the plug to the engine, you can just hold it against the block. Hold the plug with something that insulates you so you don't get belted with the spark, like a thick rag or rubber glove. Have someone else crank the engine and see if you see a thick, strong spark across the electrode. While doing this, be careful none of your clothes or body parts are near the belts and keep your face away from the spark plug hole as air/fuel will be forced out while you are cranking.

I'm not as familiar with that engine, I assume it's a PCM 343? Might be a breaker at the back of the engine, but if you are cranking and had fuel pressure doubt it's that. Check for spark and someone else will chime in with more engine specific knowledge.

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'63 American Skier - '98 Sport Nautique


Posted By: helpingjoe
Date Posted: August-21-2017 at 6:54pm
Thank you, I'll give that a try. If I don't get any spark what would be my next step?


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Helping Joe (my boss)


Posted By: 63 Skier
Date Posted: August-21-2017 at 6:55pm
That backfire is why I don't like starting fluid. Easy to do damage, no reason to ever need it.

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'63 American Skier - '98 Sport Nautique


Posted By: helpingjoe
Date Posted: August-21-2017 at 6:57pm
yeah it was scary I was sitting right next to the motor.

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Helping Joe (my boss)


Posted By: 63 Skier
Date Posted: August-21-2017 at 7:07pm
The backfire makes me think you do have spark, but still check to be sure.

The fact that all you have done is change the HP pump and you have fuel pressure at the rail makes me wonder why the injection system isn't putting fuel to the cylinders, which is what I suspect is the problem. I don't know if there is a need to bleed air from the system or not. I'm really hoping someone with more knowledge of this engine will check in. Again, what engine is in your boat?

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'63 American Skier - '98 Sport Nautique


Posted By: helpingjoe
Date Posted: August-21-2017 at 7:13pm
That's a good question. LOL im not sure other than they said it was the same one they put in corvettes

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Helping Joe (my boss)


Posted By: helpingjoe
Date Posted: August-21-2017 at 7:21pm
The engine cover hase "EX343" on it. Don't know if that tells you what engine it is or not.

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Helping Joe (my boss)


Posted By: 63 Skier
Date Posted: August-21-2017 at 7:22pm
Take a picture of the top of the engine and post it, or just tell us what it says on the engine intake cowl, it will I think be EX343 or ZR6. Also what exactly model boat do you have?

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'63 American Skier - '98 Sport Nautique


Posted By: 63 Skier
Date Posted: August-21-2017 at 7:23pm
Oops, didn't see your post, now we know you have a 343.

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'63 American Skier - '98 Sport Nautique


Posted By: Hollywood
Date Posted: August-21-2017 at 7:24pm
Have you looked under your distributor cap lately?


Posted By: helpingjoe
Date Posted: August-22-2017 at 11:45am
it doesn't have a distributor cap

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Helping Joe (my boss)


Posted By: helpingjoe
Date Posted: August-22-2017 at 11:48am
does anyone know how to check the water pump? and does anyone know how to reset the computer?


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Helping Joe (my boss)


Posted By: Hollywood
Date Posted: August-22-2017 at 12:02pm
I think the Excalibur has a distributor


Posted By: quinner
Date Posted: August-22-2017 at 12:28pm
Excal has a distributor cap, change it and the rotor, known issue!!

With the ignition on and motor box open, pull the lanyard and then re-install, do you hear the fuel pumps cycling??

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http://www.correctcraftfan.com/diaries/details.asp?ID=1143" rel="nofollow - Mi Bowt


Posted By: Orlando76
Date Posted: August-22-2017 at 1:49pm
Another thought, check throttle potentiometer at the end of throttle cable. If the potentiometer falls completely closed in case of broken throttle cable or more common a cracked plastic potentiometer housing it'll keep motor from starting.

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