Home
Don't have an account? Create one now! It's always free!


Forgot Password
Ed's Auto Parts - Mention MOTORGEN for a Discount!
Motorgen Sponsor: McLeod Racing
Motorgen Sponsor: American Muscle - Add style and performance to your Stang
Motorgen Sponsor: Hall Fabrication & Racing
Motorgen Sponsor: Injectors Plus - Performance Fuel Delivery Systems
Reply
 
Thread Tools
Old 02-16-2011, 03:49 PM   #21
enkeivetteenkeivette is offline
Super Moderator
 
enkeivette's Avatar
 
Join Date: Dec 2007
Posts: 6,850
Default

http://www.speedtalk.com/forum/viewt...hp?f=1&t=25496
__________________
I <3 forced induction.
  Reply With Quote
Old 02-16-2011, 03:57 PM   #22
enkeivetteenkeivette is offline
Super Moderator
 
enkeivette's Avatar
 
Join Date: Dec 2007
Posts: 6,850
Default

Now I'm thinking you had some intense valve float, which allowed the pushrod to escape from the rocker, causing it to bind and break the rocker...
__________________
I <3 forced induction.
  Reply With Quote
Old 02-16-2011, 04:59 PM   #23
LeedomLeedom is offline
Graphics B*tch
 
Leedom's Avatar
 
Join Date: Dec 2006
Posts: 2,197
Default

I did not read Adam's link but what if when the rocker broke it somehow hit or got lodged by the intake rocker and did not allow the intake rocker to move through the entire movement for a cycle of 2 and caused the pushrod to bend.

Possible?
__________________
Adam

'13 Ford Fusion SE (2.0L EcoBoost)(Conor)

'03 Zinc Yellow Mach 1(Yazmine)
290HP / 305TQ
1/4 mile ET: 13.28 @ 101MPH (1.867 60')

'99 White F-150 (4.6L)(Bud Jr.)-gone but never forgotten
  Reply With Quote
Old 02-16-2011, 05:22 PM   #24
94cobra69ss39694cobra69ss396 is offline
Fast & Filthy
 
94cobra69ss396's Avatar
 
Join Date: Jun 2008
Posts: 3,840
Default

Yes, that's possible. I'm really not that worried about it. I think everything is okay and that I'll be able to put it back together and run it.
  Reply With Quote
Old 02-17-2011, 09:27 AM   #25
94cobra69ss39694cobra69ss396 is offline
Fast & Filthy
 
94cobra69ss396's Avatar
 
Join Date: Jun 2008
Posts: 3,840
Default

Pushrods and rocker arm came in yesterday. I have people telling me that the leakage percent seems high and that I should check some other cylinders so I'm going to try and do it today if I can.
  Reply With Quote
Old 02-17-2011, 10:38 AM   #26
Throttle CrazyThrottle Crazy is offline
Senior Member
 
Join Date: Sep 2008
Posts: 187
Default

I read that other thread and agree that the rocker arm had to break first like we talked about. Also I never said that 30% was what I normally see on an 80,000 mile motor. I normally see 12% to 20% but anything under 30% the cylinder should be fine. On a burned or tuliped valve I see 60% or more. If the valve were bent or the piston broken it would be even higher. It is always good to check against the other cylinders to see where they are at. The bottom line is that 16% is an acceptable leakage. If the cylinder next to it only reads 10,12,13% what difference does it make. Put the rocker arm and push rod in it, fire it up, and drive the shit out of it for another 50,000 miles.
  Reply With Quote
Old 02-17-2011, 02:03 PM   #27
enkeivetteenkeivette is offline
Super Moderator
 
enkeivette's Avatar
 
Join Date: Dec 2007
Posts: 6,850
Default

I didn't know Throttle Crazy was your brother, and you've had your car to 175mph? Holy crap.
__________________
I <3 forced induction.
  Reply With Quote
Old 02-18-2011, 08:13 AM   #28
94cobra69ss39694cobra69ss396 is offline
Fast & Filthy
 
94cobra69ss396's Avatar
 
Join Date: Jun 2008
Posts: 3,840
Default

Yes and yes.
  Reply With Quote
Old 02-18-2011, 01:08 PM   #29
enkeivetteenkeivette is offline
Super Moderator
 
enkeivette's Avatar
 
Join Date: Dec 2007
Posts: 6,850
Default

It's amazing what some of the aftermarket cars on the road can do. We should have more super street challenges with street driven tuner vehicles.
__________________
I <3 forced induction.
  Reply With Quote
Old 03-06-2011, 12:13 AM   #30
94cobra69ss39694cobra69ss396 is offline
Fast & Filthy
 
94cobra69ss396's Avatar
 
Join Date: Jun 2008
Posts: 3,840
Default

Well I got the Cobra put back together and it's running great again.
  Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -7. The time now is 06:57 AM.