• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

valve float?

  • Thread starter Thread starter 68dustin
  • Start date Start date Apr 7, 2009

68dustin

Member
Oct 8, 2008
173
2
19
Apr 7, 2009
#1
  • Apr 7, 2009
  • #1
is there any way to know without using a dyno?
 

Decurion

Member
Sep 28, 2006
353
0
16
Livonia, MI
Apr 7, 2009
#2
  • Apr 7, 2009
  • #2
Usually when the engine starts to get a miss at high rpm. A friend of mine just spent a lot of time diagnosing what turned out to be valve float. I guess the best way to find it is when nothing else affects the miss.
 
1

10secgoal

Active Member
Dec 1, 2003
2,801
3
49
San Diego
Apr 11, 2009
#3
  • Apr 11, 2009
  • #3
Have you regapped the plugs ?
 
D

D.Hearne

New Member
Sep 29, 2000
11,730
6
0
south louisiana
Apr 12, 2009
#4
  • Apr 12, 2009
  • #4
"Valve float" can also be confused with "point bounce" and in the roller motors, lifter bounce.
 
You must log in or register to reply here.

Similar threads

Engine Cleaning Intake valves with lower intake off
  • R82148V
  • Mar 4, 2026
  • Fox 5.0 Mustang Tech
Replies
13
Views
335
Fox 5.0 Mustang Tech Mar 11, 2026
limp
Y
Engine Stuck valve spring seat
  • Yellow94Gts
  • Jul 27, 2025
  • Fox 5.0 Mustang Tech
Replies
1
Views
97
Fox 5.0 Mustang Tech Jul 27, 2025
AeroCoupe
1
Clearance
  • 1993mustang50
  • Apr 3, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
129
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 4, 2026
2000xp8
M
Looking for a passenger side AC Compressor mount
  • mustangTodd
  • Feb 10, 2026
  • Classic Mustang Specific Tech
Replies
0
Views
89
Classic Mustang Specific Tech Feb 10, 2026
mustangTodd
M
J
'04 3.8L V6 mineral deposits and oil on #3 cylinder. Does it need a rebuild or something simpler?
  • joeybuddy96
  • Mar 18, 2026
  • SN95 V6 Mustang Tech
Replies
4
Views
186
SN95 V6 Mustang Tech Mar 18, 2026
joeybuddy96
J
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang 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?