Fordmods Logo

Screwed valve or valve spring?? 

 

Page 1 of 1 [ 6 posts ] 

 
 Post subject: Screwed valve or valve spring??
Posted: Fri Aug 05, 2005 3:27 pm 
Getting Side Ways
Offline
User avatar

Age: 31

Posts: 896

Joined: 3rd May 2005

Gallery: 18 images

Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
WA, Australia

Ive got a really bad ticking coming from my passenger side rocker cover...and it sounds like its running on 7 cylinders...the RAC mechanic said either a valve is broken or bent or that a valve spring has snapped....does this sound right??....anyone had this problem b4??
Top
 Profile  
 
 
Posted: Fri Aug 05, 2005 6:38 pm 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 1440

Joined: 7th Nov 2004

Ride: 320kw BA XR8

Location: Adelaide
SA, Australia

It could be a bent valve or broken spring but you won't know until you pull the rocker cover off, but its a fairly rare problem unless you have really over-reved the engine. It could also just be that one of the lifters is not filling with oil or a number of other things. Luckily the passanger side rocker cover is easy to get off, you usually don't need to remove anything but the intake piping and then its just the 6 rocker cover bolts.
Top
 Profile  
 
 
Posted: Fri Aug 05, 2005 9:43 pm 
Getting Side Ways
Offline
User avatar

Age: 31

Posts: 896

Joined: 3rd May 2005

Gallery: 18 images

Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
WA, Australia

i found the problem...its a snapped valve spring on the very front left cylinder....its strange but, because i wasnt even hammering it before or whilst it broke...ud think it would break when its under a heap of strain...im getting a whole set of new high performance springs which will let the engine rev a bit harder for $250 fitted... :D
Top
 Profile  
 
 
Posted: Sat Aug 06, 2005 2:59 pm 
Stock as a Rock
Offline
User avatar

Age: 41

Posts: 117

Joined: 16th Apr 2005

Gallery: 9 images

Ride: ED Fairmont Ghia 5.0L

Location: Brisbane
QLD, Australia

Same thing just happened to me!
No 6 exhaust spring broke, and they were crane singles.

 

_________________

ED Fairmont Ghia.
306ci, Pro-m 80 MAF & #42inj, Kirban AFPR, Walbro 255LPH intank & inline, BBK 70mm, Ported Edelbrock #60399, Ported Explorer, Crane 2031 & YT1.72, MSD 6AL, paciemaker tri-y, 2.5" cats into single 3". H/D stall. 3.45 lsd, Powerdyne XB1A.

Top
 Profile  
 
 
Posted: Sun Aug 07, 2005 2:33 pm 
Getting Side Ways
Offline
User avatar

Age: 64

Posts: 3552

Joined: 7th Nov 2004

Gallery: 4 images

Power: 482 rwkw

Location: Penrith
NSW, Australia

Make sure you order roller cam springs as flat tappet cams don't have quick ramps...I'd use double springs for sure!! Better for spring harmonics etc...

 

_________________

As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

Top
 Profile  
 
 
Posted: Sun Aug 07, 2005 5:42 pm 
Getting Side Ways
Offline
User avatar

Posts: 1392

Joined: 5th Nov 2004

Ride: XR6 Turbo, XR8, Transit

Location: Somewhere
VIC, Australia

Yes - get doubles!!!

I ordered doubles when I got my cam done... However, somehow the doubles I handed to the mechanic never made it onto my car, and I got singles put on (and hey - like I was gonna take off the rocker covers to check)

I snapped number 7 one day - wasnt even giving it a hard time - just cruising on the M4 under 2000rpm.

I made sure I got doubles put on after that!!!

 

_________________

www.XR8Chic.com
1993 ED XR8 - Poly Green, AFR 185 Alloy heads, Edlebrock Performer RPM Manifold, Crane 2031, T56 6 Speed, 3.9 diff, = 205.7 rwkw.
1993 ED Fairmont - Cobalt Blue, 5L, 17" CSA's and not much else.
1969 Mustang Fastback - Gunmetal Grey, 302, Auto, LHD. Doesn't go very hard, but looks sexy as !

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 6 posts ] 

Who is online

Users browsing this forum: No registered users and 12 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Mon Dec 11, 2017 9:02 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names