Go Back  Offshoreonly.com > General Discussion > General Boating Discussion
496HO Cutting out RPM Drop >

496HO Cutting out RPM Drop

Like Tree8Likes

496HO Cutting out RPM Drop

Reply

Old 08-22-2016, 10:38 AM
  #11
BUP
Registered
iTrader: (8)
 
Join Date: Jul 2011
Location: Ft. Worth TX
Posts: 9,032
Default

^^^^^ your problem was that the spark from the loose wire was shorting out against a metal part. That will do it as well. Check to make sure your spark plug wires are not leaking spark or cracked causing shorts, that will do it as well what both of you had / have going on. Watch it at nite or in total darkness for spark leaking against what ever.

Last edited by BUP; 08-22-2016 at 10:41 AM.
BUP is offline  
Reply With Quote
Old 08-24-2016, 07:47 PM
  #12
Registered
Thread Starter
 
Expensive Date's Avatar
 
Join Date: May 2006
Location: West Creek NJ
My Boat: 05 35 Fountain EX
Posts: 4,220
Default

Well,,,,,,, I Took it up to Wazzup Racing engines (Smitty) and it turns out #7 spark plug wire had come off. Thanks to all for your help.
Expensive Date is offline  
Reply With Quote
Old 08-24-2016, 08:03 PM
  #13
BUP
Registered
iTrader: (8)
 
Join Date: Jul 2011
Location: Ft. Worth TX
Posts: 9,032
Default

that's the problem wire for coming off because of the oil lines in the way and sometimes the connection does not get snapped down all the way. Actually common to see that.

Thanks for the fix update and being honest about a simple fix. Some would not have even posted that.

Post 10 and 11 had good info for the fix without looking at it.

Last edited by BUP; 08-24-2016 at 08:10 PM.
BUP is offline  
Reply With Quote
Old 08-24-2016, 08:11 PM
  #14
Registered
Thread Starter
 
Expensive Date's Avatar
 
Join Date: May 2006
Location: West Creek NJ
My Boat: 05 35 Fountain EX
Posts: 4,220
Default

Well,,,,,,, I Took it up to Wazzup Racing engines (Smitty) and it turns out #7 spark plug wire had come off. Thanks to all for your help.
Expensive Date is offline  
Reply With Quote
Old 08-24-2016, 11:13 PM
  #15
Registered
 
Join Date: Apr 2013
Posts: 1
Default

I had the same thing happen to my 496 ho. This can also happen when changing water impeller. Must have knocked the plug wire loose.
nathan4669 is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


OSO Sponsor
OSO Advertiser
OSO Advertiser
OSO Advertiser