351w engine knock
Thread Starter
|
New User
Joined: Jul 2005
Posts: 22
Likes: 0
351w engine knock
i saw a post awhile ago but could not find it now--1992 351w engine knock--sounds like something real bad-right side of motor-sounds like someone hitting it with a big hammer--but i'm sure its not a rod or valve-it runs fine--that old post said something about smog system-??-any ideas-thanks
Super Moderator
Joined: Apr 2004
Posts: 34,504
Likes: 2,820
The big hammer knock usually means a rod bearing has given up.
Running it that way will damage the crank beyond repair. It could even lead to more damage if the rod breaks, or debris from this destruction gets flung around inside the engine.
Pull the right side valve cover, and if things are in order there, pull the pan and inspect the rods.
Maybe you get lucky and it's something up top.
Running it that way will damage the crank beyond repair. It could even lead to more damage if the rod breaks, or debris from this destruction gets flung around inside the engine.
Pull the right side valve cover, and if things are in order there, pull the pan and inspect the rods.
Maybe you get lucky and it's something up top.
Thread
Thread Starter
Forum
Replies
Last Post
joshofalltrades
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
13
Nov 4, 2015 12:46 AM
csb41502
1987 - 1996 F150 & Larger F-Series Trucks
16
Jan 24, 2011 10:26 PM
SmokeBlower
1987 - 1996 F150 & Larger F-Series Trucks
2
May 24, 2008 11:14 AM
