Vibration found

[1baddogg]

I posted a thread on here a few months ago about a vibration in my 69 roadrunner that was driving me nuts to find . I got a lot of great responses but still didn't fix it , so I went into the archives on vibrations . read a lot of them and happened to see where someone took the fan belts off and cranked the engine to check for a vibration. I though hell that would be quick and eliminate a lot at once . so I tried it and i'll be damn , it was the fan blade that was bad . I replaced it and vibration is gone . I have chased it for 3 years .lol... something so simple . , Anyway thanks to all that answered on any of those vibration threads and I am so thankful for the archives to search . They helped big time. Its helped me a lot reading old posts on different stuff . This site has some very smart mopar guys on here !!! The best . Thanks again

 

[oldbee]

Great that you found it; sometimes it's nice for ideas from guys that went thru it, but then again have time invested in ur problem so they can just throw out ideas. Sometimes an idea with no vested interest throws out something that works. Don't get me wrong, we're all vested but we are not there with all the tension of figuring it out.

 

[conv67bdere]

Interesting . . . I had a vibration in my 66 Chevy II . . . and I could not for the life of me find it either . . . until, one day, driving down the road and "something" exits out the bottom of the car and vibration increases 10 fold - I pull over and shut it down. walk back to where the part was ejected . . . and find - 1/2 of a fan blade . . . the other half was still in the car !

Stress fracture/crack, and I could not see it - but it finally let go and let me know "here's the cause of your vibration" - lucky it went down and there was no additional damage ( very lucky ).

Put on a new fan and it's running great ever since ! Still got both halves of the fan around here for the memory . . . it could have been a whole lot worse.

 

[Bruzilla]

I remember when I replaced the clutch fan on one of my 73 Roadrunners with a flex fan. I started the engine and at first it didn't feel like it was running. The old fan had been generating a vibration that I had just gotten used to and didn't even notice it until the new fan eliminated it.