496ho Blew Its Cookies
09-06-2010 | 09:53 PM
#11
Thread Starter
Registered
Joined: Jan 2006
Posts: 90
Likes: 0
It had a piece of the piston hammered into it, when removing the plug it came out hard and cut new threads on the piece of the piston that was stuck in the plug. Im sure it looks just like your posted pictures...The catastropic failure gave no warning at all.
Do they use cast or forged in the remanufactured engine?
Do they use cast or forged in the remanufactured engine?
09-06-2010 | 10:10 PM
#12
Registered
Joined: Aug 2005
Posts: 6,306
Likes: 1
From: Between A Womans Leggs in IL
Fixx
Saturday was a beautiful day on the water, for about an hour anyway! Was running from one end of the lake to the other and thought I would wind it up alittle, at around 4800 RPM "20 seconds" I felt the boat jerk and starboard motor was dropping RPM and stalled. Engine temp. was around 160 and oil pressure 45 PSI. I stopped right away and raised the engine hatch and noticed what seemed to be a small puff of steam belch out of the flame arrestor. I attemped to restart engine and had an uneven cranking RPM along with rattle every revolution. I checked the oil then and it was about 6 inches over full then found the coolant reservoir to empty.
I had read about weak pistons on the 496's on modified engines, has their been much of a problem on bone stockers with 40 hours? I am assuming the piston came apart and went through the cylinder wall. Are their certain year engines better than others?
I had read about weak pistons on the 496's on modified engines, has their been much of a problem on bone stockers with 40 hours? I am assuming the piston came apart and went through the cylinder wall. Are their certain year engines better than others?
which state you located in? Because i know where their is one sitting in a garage for the pst year, believe its a ho. ill see if i can get yo uthe guys #..
09-07-2010 | 07:43 AM
#13
Thread Starter
Registered
Joined: Jan 2006
Posts: 90
Likes: 0
09-07-2010 | 02:37 PM
#14
Registered
Joined: Nov 2005
Posts: 4,554
Likes: 3
From: Fredericksburg, Va
looks like it ran real lean..ck that injector..and sometime loosing a piston it will still turn over...seen them running before with a rod stuck thru the pan, so you never know...but thats bad...
09-09-2010 | 01:59 PM
#17
Registered
Joined: Oct 2003
Posts: 2,670
Likes: 13
From: Turkey Point Island Edgewater Md.
09-09-2010 | 04:44 PM
#19
Registered
Joined: Aug 2005
Posts: 6,306
Likes: 1
From: Between A Womans Leggs in IL
09-09-2010 | 07:15 PM
#20
Thread Starter
Registered
Joined: Jan 2006
Posts: 90
Likes: 0
