4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

engine knock, rods?? valves??

Thread Tools
 
Search this Thread
 
Old Feb 25, 2007 | 10:05 PM
  #1  
jnobles's Avatar
jnobles
Thread Starter
 
Joined: Mar 2005
Posts: 13
Default engine knock, rods?? valves??

http://media.putfile.com/engine-knock-22

happened after spark plug decide to disengage from head while driving...wasn't driving hard
Old Feb 25, 2007 | 10:17 PM
  #2  
badboystangGT's Avatar
badboystangGT
2nd Gear Member
 
Joined: Jan 2006
Posts: 384
From:
Default RE: engine knock, rods?? valves??

yes sir thats rod knock for you probably bent the rod sounds exactly like what happened to mine and look what happened
Old Feb 25, 2007 | 10:34 PM
  #3  
kenv's Avatar
kenv
4th Gear Member
 
Joined: Dec 2006
Posts: 1,420
From: pa
Default RE: engine knock, rods?? valves??

I`m trying to figure out how spitting out a plug could cause a bent/broke rod.
Old Feb 25, 2007 | 10:40 PM
  #4  
oxfordgt's Avatar
oxfordgt
6th Gear Member
 
Joined: May 2006
Posts: 6,448
From: Ohio
Default RE: engine knock, rods?? valves??

sounds like a spun bearing to me.
Old Feb 25, 2007 | 11:09 PM
  #5  
jnobles's Avatar
jnobles
Thread Starter
 
Joined: Mar 2005
Posts: 13
Default RE: engine knock, rods?? valves??

not sure how a plug caused that. I was driving under the speed limit as a matter of fact.....heard and boom and pulled over immediately called for a tow mechanic said the number 8 plug was spit out. They helicoiled it and this is what it sounded like when when it started up
Old Feb 25, 2007 | 11:16 PM
  #6  
oxfordgt's Avatar
oxfordgt
6th Gear Member
 
Joined: May 2006
Posts: 6,448
From: Ohio
Default RE: engine knock, rods?? valves??

Use a stethescope and listen to the spark plugs. If #8 is louder then the rest then they did a bad job on the helicoil.
Old Feb 25, 2007 | 11:34 PM
  #7  
jnobles's Avatar
jnobles
Thread Starter
 
Joined: Mar 2005
Posts: 13
Default RE: engine knock, rods?? valves??

what should I do then???
Old Feb 25, 2007 | 11:42 PM
  #8  
badboystangGT's Avatar
badboystangGT
2nd Gear Member
 
Joined: Jan 2006
Posts: 384
From:
Default RE: engine knock, rods?? valves??

your gonna have to rebuild it you bent the rod you should just be able to open up the bottom end and replace the the rods and the rod bearings
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Nick Oliver
V6 S197 General Discussion
6
Oct 17, 2018 04:22 AM
Pyrate Dave
5.0L (1979-1995) Mustang
8
Sep 10, 2015 07:30 PM
zanemoseley
2005-2014 Mustangs
6
Sep 6, 2015 12:58 PM
RWHEELS
S197 Handling Section
4
Sep 5, 2015 03:42 PM
tj@steeda
Steeda Autosports
0
Sep 1, 2015 08:16 PM




All times are GMT -5. The time now is 11:44 PM.