Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
Sign in using an external account
Register Forgot Password?


Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 09-17-2000, 02:58 AM
frankus frankus is offline
New User
 
Join Date: Aug 2000
Location: Diamond Bar USA
Posts: 6
frankus is starting off with a positive reputation.
Tell me what you think....

Well got my truck back together, after it snacked on the air cleaner retaining stud (chewed up by #4 cylinder). Did a valve job, put it back together, and started it. Well it started with know problem, but now it has a knock. Now I ask you, is it possible I flattened a rod bearing, or is it more likely I bent a push rod? I was in such a hurry to get it back together, and get it back over the Grapevine, I never checked to see if all the rods were strait. I would think that a 460's bottom end is alot stronger then a non-hardened 2 inch stud.

Tell me what you think. Anyone? Anyone?


Reply With Quote
  #2  
Old 09-20-2000, 09:38 PM
progreg progreg is offline
New User
 
Join Date: Sep 2000
Posts: 20
progreg is starting off with a positive reputation.
Tell me what you think....

Take the spark plug out of that cylinder and see if the knock stops or changes. Good chance you did some bearing/crank damage. depends on how long the engine ran with the bolt in there and how fast you were going.
Reply With Quote
  #3  
Old 09-21-2000, 12:03 AM
frankus frankus is offline
New User
 
Join Date: Aug 2000
Location: Diamond Bar USA
Posts: 6
frankus is starting off with a positive reputation.
Tell me what you think....

I'll try it...
Reply With Quote
  #4  
Old 09-26-2000, 10:57 AM
Thudpucker's Avatar
Thudpucker Thudpucker is offline
Posting Guru
 
Join Date: Jan 2000
Location: Cullman Alabama
Posts: 1,878
Thudpucker is gaining momentum as a positive member of FTE.
Tell me what you think....

There are also Stethascopes that can just about pin point that Knock. I'm betting against a lower end problem. More likely a collapsed lifter. Do you get a Miss with the knock, and maybe even some backfiring?

Bent Pushrods usually dont make any noise at all. Sometimes, if they are bent enough you'll hear a high pitched snapping sound.

Wrist Pins snap, Broken rings Click, Rod's thump, Mains Rap, Cracked Piston skirts clack, and all of those noises will change when you short the Spark plug wire.
__________________
97 F-150/4X4/ex cab/4.6V-8/auto/Lariat,F/Glass canopy and a 77 F-150/460/C-6/ex-cab/Fglass Canopy.
Reply With Quote
  #5  
Old 09-27-2000, 11:37 PM
frankus frankus is offline
New User
 
Join Date: Aug 2000
Location: Diamond Bar USA
Posts: 6
frankus is starting off with a positive reputation.
Tell me what you think....

It still runs smooth and feels like it has just as much power, but there is still a steady knock. From inside the cab it sounds like it's coming from down low, like from the right front tire. Obviously it is not the tire. I like the idea of the stethascope I'll try that. Thanks
Reply With Quote
  #6  
Old 10-04-2000, 07:10 AM
DeenHylton DeenHylton is offline
Elder User
 
Join Date: Jan 2000
Location: Crooked River Ranch, OR
Posts: 966
DeenHylton is starting off with a positive reputation.
Tell me what you think....

__________________
1989 F250 460 C-6, RV cam, headers, duals, K&N, shift-kit, now 4.10's.
Reply With Quote
Old 10-04-2000, 07:10 AM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Turbo Pedestal Question ?? Cell's 1999 - 2003 7.3L Power Stroke Diesel 2 08-08-2014 08:45 AM
Intake valves sticking webslinger67 1967 - 1972 F-100 & Larger F-Series Trucks 3 10-14-2013 03:47 PM
Push rod replacement BstangBill 6.0L Power Stroke Diesel 7 02-14-2010 11:21 PM
Are ARP Studs Working? DSMMH 6.0L Power Stroke Diesel 9 12-23-2007 07:12 AM
Steering ttttmaxx 1994.5 - 1997 7.3L Power Stroke Diesel 4 11-05-2007 11:59 AM



All times are GMT -5. The time now is 10:29 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup