5.0L General Discussion This section is for non-tech specific information pertaining to 5.0L Mustangs.

popped a valve spring today

Thread Tools
 
Search this Thread
 
Old Oct 1, 2011 | 07:44 PM
  #1  
motorman524's Avatar
motorman524
Thread Starter
MF Informant
 
Joined: Sep 2006
Posts: 2,690
From: Missouri
Angry popped a valve spring today

Took the Mustang out for it's first drive with the new engine, IT'S SO FAST!!!!! 0 to 60 is instant. I didn't get real crazy with it though, never went over 4k rpm. Drive it up and down the road twice and on the way back the second time I started feeling a misfire. Decided it was probably a mechanical issue due to it's abruptness. So I loaded it onto the trailer and brought it home. Pulled the plugs, # 3 didn't look like the others. Decided to do a compression test starting at #1 and heading down the line. Got to # 3 and we had nothing. F. Pulled the valve cover and discovered a broken valve spring on the intake side. By this time I was expecting the worst, a hole in my piston, bent valve, ect. I took the rockers off and my dad pulled the valve up while I turned the engine over. Luckily it had great compression. So, I've emailed TEA for a replacement. Could've been a lot worse.

Old Oct 1, 2011 | 08:20 PM
  #2  
AdderMk2's Avatar
AdderMk2
Banned
 
Joined: Dec 2005
Posts: 22,374
From: Lil' Rhody
Default

bah... what a turd.

Glad to hear you lucked out and didn't break anything major.
Old Oct 1, 2011 | 08:21 PM
  #3  
projectresto83's Avatar
projectresto83
M.A.D. Motorsports
 
Joined: Jul 2006
Posts: 8,014
From: Indiana
Default

Sucks....Sick picture for your sig! They gonna send a free replacement or what?
Old Oct 1, 2011 | 09:02 PM
  #4  
motorman524's Avatar
motorman524
Thread Starter
MF Informant
 
Joined: Sep 2006
Posts: 2,690
From: Missouri
Default

^ That would be nice but I doubt it. I bought these from a guy over on Corral. I don't have a part # so I'm hoping they can help me out. They are LS1 springs, 1.300" diameter with 160lbs on the seat and 440 at .600 lift
Old Oct 1, 2011 | 10:15 PM
  #5  
mjr46's Avatar
mjr46
D.R. THE PATHETIC DORK
 
Joined: Jun 2007
Posts: 30,871
From: West Virginia
Default

you really should give ED at flowtech an email and have him set you up with some springs that won't do that, I'd be leary of the rest of them.
Old Oct 1, 2011 | 10:28 PM
  #6  
tinman's Avatar
tinman
5th Gear Member
 
Joined: Aug 2004
Posts: 4,103
From: Arizona
Default

^^^^^^^^^^^^^^^^He's right on the money^^^^^^^^^^^^^^^^^^^^^^^^^^^
I wouldn't even be sleeping until I had all 16 springs off that engine and correct ones installed.
Don't forget to use all new locks also.......
Old Oct 1, 2011 | 10:41 PM
  #7  
Canary94GT's Avatar
Canary94GT
4th Gear Member
 
Joined: Aug 2008
Posts: 1,233
From: Seattle, WA
Default

the rest of them would be nerve-wracking to me too!
Old Oct 2, 2011 | 12:09 AM
  #8  
motorman524's Avatar
motorman524
Thread Starter
MF Informant
 
Joined: Sep 2006
Posts: 2,690
From: Missouri
Default

I don't plan on replacing them just yet. When I ordered my cam I sent all of the information on my setup to Jim. This was a fluke most likely. I'll just see what TEA has to say and go from there. Now, if another one breaks, please believe they're gonna be gone.
Old Oct 2, 2011 | 08:06 AM
  #9  
AdderMk2's Avatar
AdderMk2
Banned
 
Joined: Dec 2005
Posts: 22,374
From: Lil' Rhody
Default

replace them now before another one breaks... before one of your pistons decides to introduce itself to a valve
Old Oct 2, 2011 | 11:34 AM
  #10  
motorman524's Avatar
motorman524
Thread Starter
MF Informant
 
Joined: Sep 2006
Posts: 2,690
From: Missouri
Default

You guys are killing me! I sent Ed an email this morning.



All times are GMT -5. The time now is 12:08 AM.