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

Missed Shift

  • Thread starter Thread starter sj9ers
  • Start date Start date Aug 20, 2009
S

sj9ers

Member
May 19, 2007
71
0
7
Aug 20, 2009
#1
  • Aug 20, 2009
  • #1
I have a roller 302 with a carb and t5 and while driving tonight I missed a shift and over revved it I think. After the car started running really rough and would backfire and die when I didn't give it a little gas as a tried to get it home. I don't really know what gear or rpm, but I think it was between 2nd and 3rd when it happened but I wasn't going very fast and it wasn't revved very hard. Luckily there are no out of the ordinary noises from the engine. When I got it home and started the engine there was no odd noises from the motor, but it would just die after a little bit and ran like the timing was off. Is it possible that my timing just got thrown off and all I have to do is set the timing again tomm?
Thanks
 

BlownFiveLiter

have car, will race....wait, it doesn't run
15 Year Member
Nov 29, 1999
3,133
18
108
Chicagoland
Aug 21, 2009
#2
  • Aug 21, 2009
  • #2
It's probably not a timing issue. You should consider a compression test now, since over revving it may have caused PTV contact and it running rough is likely a result of bent valves that aren't seating.
 
P

phutch11

Member
Nov 14, 2005
328
2
18
Aug 21, 2009
#3
  • Aug 21, 2009
  • #3
+1 on the bent valve; and I'll bet you bent the pushrod and broke the lifter as well.

Pull the valve covers and look for a rocker that isn't tight and a pushrod that's flopping around - that's the offending party.

Then it's time to pull the head and go to the machine shop for a new valve guide and valve.

Been there too many times....good luck.

Posted via Mobile Device
 
You must log in or register to reply here.

Similar threads

M
85 Capri 5.0 transmission rattle
  • Mamaclean
  • May 2, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
2
Views
104
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 17, 2026
Mamaclean
M
L
Help with 1986 GT 5 Speed Please
  • Lcasada1999
  • Mar 20, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
6
Views
181
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 21, 2026
General karthief
N
Edelbrock 1405 Setup
  • nathantaylor200
  • Nov 4, 2025
  • Classic Mustang Specific Tech
Replies
3
Views
190
Classic Mustang Specific Tech Nov 5, 2025
nathantaylor200
N
K
Engine 2000 Mustang GT - Fuel issue post-blown spark plug repair
  • kenster1092
  • Feb 26, 2026
  • SN95 4.6L Mustang Tech
Replies
4
Views
283
SN95 4.6L Mustang Tech Mar 10, 2026
kenster1092
K
J
MEED HELP!! 86 mustang
  • Jacob0121
  • Jan 23, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
6
Views
293
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 25, 2026
CAMTWO1070
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?