4th Gen ('81-'88): Engine Knocking noise, need suggestions
#1
Engine Knocking noise, need suggestions
Currently am facing two problems on the engine that I would like to solve before finishing the body work just in case I need to pull it out.
1. Water pump squealing. Not a big issue.
2. Metal on metal knocking noise. Cant describe it enough in words so I made a video.
Video: https://www.dropbox.com/s/edcogosmyn...12.18.mov?dl=0
Sorry about the squealing. It stops a few seconds into the video.
Suggestions?
1. Water pump squealing. Not a big issue.
2. Metal on metal knocking noise. Cant describe it enough in words so I made a video.
Video: https://www.dropbox.com/s/edcogosmyn...12.18.mov?dl=0
Sorry about the squealing. It stops a few seconds into the video.
Suggestions?
Last edited by Jake Long; 05-21-2016 at 11:53 AM.
#2
Just looked at the flexplate from what I cant see that its cracked. I don't feel any vibrations from it when trying to move it with my hands. I think I may rule it out. The sound doesn't seem to follow a pattern. From what I have heard, cracked flex plates produce the same exact noise the whole time the engine is running. Mine seems to have louder and quieter knocks.
Last edited by Jake Long; 05-21-2016 at 02:13 PM.
#3
Just looked at the flexplate from what I cant see that its cracked. I don't feel any vibrations from it when trying to move it with my hands. I think I may rule it out. The sound doesn't seem to follow a pattern. From what I have heard, cracked flex plates produce the same exact noise the whole time the engine is running. Mine seems to have louder and quieter knocks.
#5
I did not since it sounds like its coming from behind the motor. Will take them off and check.
Yes. After making the video I took off all the belts and ran it without the belts. Squeal is gone, but the knocking was left.
Yes. After making the video I took off all the belts and ran it without the belts. Squeal is gone, but the knocking was left.
#9
yes I know rod knocks are usually consistent. maybe the higher oil pressure is quieting it down a bit?? any exhaust leaks?