• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

Need your help with my valve spring / head damage

  • Thread starter Thread starter rockin_rick
  • Start date Start date Aug 26, 2004
R

rockin_rick

Member
Oct 9, 2003
968
1
17
Aug 26, 2004
#1
  • Aug 26, 2004
  • #1
Please help!! Since I've got my HCI combo together, it's only ran for 100 miles over 5 different days. It's currently been down since the end of June, with a broken valve spring. The head got mashed up from the spring being short and dancing around. Normally, the recess in the head for the spring locates it on the head. Now, the recess is opened up and has a larger diameter than the spring. Do I need a spring cup? Does the head recess need machined to a larger diameter to fit the cup?

What do I need to do to fix this?!?!? Do I NEED to take these to a machine shop? Is it recommended?

Thanks,
Rick
 

Attachments

  • mashed seat1 (4 exhaust).webp
    65.2 KB · Views: 337
  • mashed seat2 (4 exhaust).webp
    47.1 KB · Views: 176
R

rockin_rick

Member
Oct 9, 2003
968
1
17
Aug 26, 2004
#2
  • Aug 26, 2004
  • #2
more pics
 

Attachments

  • mashed seat3 (4 exhaust).webp
    37.3 KB · Views: 139
  • mashed seat4 (4 exhaust).webp
    68.3 KB · Views: 155
R

rockin_rick

Member
Oct 9, 2003
968
1
17
Aug 27, 2004
#3
  • Aug 27, 2004
  • #3
 

Rootus

Officially Addicted
Feb 8, 2003
6,659
1
0
Portland, Oregon
Aug 27, 2004
#4
  • Aug 27, 2004
  • #4
I would get on the phone with AFR. Their heads, their springs. Sorry to hear about your bad luck, that really sucks.

Dave
 

Joes95GT

New Member
Jan 23, 2003
3,132
1
0
Delaware
Aug 27, 2004
#5
  • Aug 27, 2004
  • #5
I'm no cylinder head expert, but my guess would be that you need to machine the spring pockets and put a cup in it. I don't really see that many other "safe" options other than that.

What are you doing with the rest of the unbroken springs? Reusing them? Or did you buy a "stronger" set?

Joe
 

stangbanger94

New Member
Apr 29, 2004
203
0
0
Bergen County, NJ
Aug 27, 2004
#6
  • Aug 27, 2004
  • #6
I'm having my Trick Flow heads built right now, and the machinist made me order spring cups, to avoid exactly what has happened to yours. Without cups, the spring digs down into the aluminum. The spring cup also acts as a shim in the process though, to help with spring height during inital assembly.
 

RIO5.0

15 Year Member
Feb 16, 2001
6,892
8
128
N.H.
Aug 27, 2004
#7
  • Aug 27, 2004
  • #7
I agree with Dave....Brand new and thats what you got....
I would think AFR would come good on the repair....Tell em you want a replacement...

been there and you lucked out....i dropped a valve.... yes. thats rings, piston pcs and all kinds of stuff....i lost the shortblock too....thru a rod right thru the oilpan...TWICE...I can still hear that noise....DOH...
you wanna play, you gotta pay...i paid my dues....


 
R

rockin_rick

Member
Oct 9, 2003
968
1
17
Aug 27, 2004
#8
  • Aug 27, 2004
  • #8
Joes95GT said:
What are you doing with the rest of the unbroken springs? Reusing them? Or did you buy a "stronger" set?
Joe
Click to expand...

I have an extra spring, so I could run the others and that new one. But I am open to another set. Considering beehives, but they are $$$$. Need to get a hold of Ed Curtis.

Andy - you could have slapped a JB weld on those parts and you've been good to go!

Rick
 

Joes95GT

New Member
Jan 23, 2003
3,132
1
0
Delaware
Aug 27, 2004
#9
  • Aug 27, 2004
  • #9
Andy, I remember you telling us about that.

You really launched that thing good didn't you? How much was the clean up work on the heads? You mangled that one chamber real good. Did you ever find the valve(s)?

Joe
 

RIO5.0

15 Year Member
Feb 16, 2001
6,892
8
128
N.H.
Aug 27, 2004
#10
  • Aug 27, 2004
  • #10
JB Weld...that would have saved me a few bucks... Seriuosly..I know how frustrating it is...if you in for a machine shop repair bill, which it looks like it needs to be revamped, i would like to think AFR would stand behind there product...yours isn't the first mentioned with spring problems...theres been a few post regarding that...It just sucks it had to be your set....

Joe..Nope..it turned into kibble...The head was repaired free...i upgraded to double spring while it was apart...luckly mines iron....
 
You must log in or register to reply here.

Similar threads

6
Hey all,I’m putting together a 302 for my 1968 Mustang and wanted to post the combo + some questions to make sure I’m not missing crucial
  • 68_Disgustang
  • Feb 22, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
4
Views
780
1965 - 1973 Classic Mustangs -General/Talk- Jun 20, 2026
gray owl
G
C
Engine Can change - valve springs also?
  • Cg’s 347
  • Feb 17, 2024
  • Fox 5.0 Mustang Tech
Replies
11
Views
2K
Fox 5.0 Mustang Tech Feb 22, 2024
2000xp8
0
V6 to V8 Swap info
  • 02_2v_Curtis
  • Jan 11, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
655
1996 - 2004 SN95 Mustang -General/Talk- Jan 11, 2026
02_2v_Curtis
0
M
Progress Thread mnky99 2001 V6 evap core, ac compressor, heater core replacement
  • mnky99
  • Sep 5, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
473
1996 - 2004 SN95 Mustang -General/Talk- Sep 5, 2025
mnky99
M
Engine Head/Cam Recommendations
  • CWSpartan
  • May 29, 2024
  • SN95 4.6L Mustang Tech
Replies
1
Views
724
SN95 4.6L Mustang Tech May 31, 2024
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?