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Richard Chappel
 Post subject: shifting/dieseling ?
PostPosted: Mon Sep 17, 2007 9:19 am 
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Seahorse

Joined: Mon Aug 20, 2007 4:11 pm
Posts: 23
Location: Lake Erie
Back to the well of knowledge. When docking and shifting F/R the engine diesels when shifted into reverse. Not a good situation. Has anyone had this experience ? What was the fix ? '90 5.7 Bravo. Thanks for any input !
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pet575
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PostPosted: Mon Sep 17, 2007 10:04 am 
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Joined: Mon Apr 16, 2007 2:42 pm
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Location: Kansas City, MO
Are you sure it is actually a "diesel" situation? I know that I've heard boats that aren't shifting properly sound like they are dieseling, but it is actually just not properly shifting into/out of gear. I would check the shifter cable for a possible adjustment first.

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Paul
2007 Four Winns Horizon 220
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jvalich
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PostPosted: Mon Sep 17, 2007 12:11 pm 
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Mental Floss

Joined: Mon May 22, 2006 3:46 pm
Posts: 919
Location: Lakeland, FL
Yep, check the shift cable for adjustment/wear and corrosion. If all is good there, then a tune up sounds like the next step.

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Jvalich
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Aussie_Horizon_190
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PostPosted: Mon Sep 17, 2007 8:09 pm 
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Also check that you are running premium gas in it... mine would not turn off when running regular - just kept dieseling on!

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Alec

2006 Horizon 190
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pet575
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PostPosted: Tue Sep 18, 2007 8:48 am 
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Richard, just in case there is any confusion, you ARE talking about this occurring while the engine is running right? Just making sure...

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Paul
2007 Four Winns Horizon 220
Mercruiser 350 Mag MPI w/ Bravo III Drive
2004 Ford Explorer Limited (V8-AWD)
Pomme de Terre Lake (Southwest Missouri)
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Txjole
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PostPosted: Tue Sep 18, 2007 10:21 am 
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Joined: Mon Mar 05, 2007 12:32 pm
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Location: Dallas Texas
I didnt know an engine could diesel while it is running. Being that it is a condition which can occur in spark plug gasoline powered engines that keeps running for a short period after being turned off, due to fuel igniting without a spark.
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mvantasell
 Post subject: engine run on
PostPosted: Fri Sep 28, 2007 7:43 pm 
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Minnow

Joined: Fri Jun 01, 2007 8:40 pm
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Location: FL
make sure you're tuned up ,my say would be your idle is a little too high,that being said your dieseling will happen more when engine is hot

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pet575
 Post subject: Re: shifting/dieseling ?
PostPosted: Mon Oct 01, 2007 12:12 pm 
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txjole said much better what I was trying to say. I've never heard of any gasoline engine being capable of "dieseling" while running. If it is running that badly, and the shift is OK, then I'd suspect a tune-up would get it straightened out.

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2007 Four Winns Horizon 220
Mercruiser 350 Mag MPI w/ Bravo III Drive
2004 Ford Explorer Limited (V8-AWD)
Pomme de Terre Lake (Southwest Missouri)
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