79 front knocking sound
Thread Starter
6th Gear
Joined: Nov 2015
Posts: 6
Likes: 0
79 front knocking sound
Hey guys I have a knocking sound coming from the fan area I'm not sure if its the water pump or fan hitting the shroud or just something loose. As of now i haven't felt or seen anything loose. Any feedback is appreciated. Thanks
Melting Slicks
Joined: Apr 2002
Posts: 2,337
Likes: 14
From: Norfolk VA
Hey guys I have a knocking sound coming from the fan area I'm not sure if its the water pump or fan hitting the shroud or just something loose. As of now i haven't felt or seen anything loose. Any feedback is appreciated. Thanks https://www.youtube.com/watch?v=spWndTP04yQ
Thread Starter
6th Gear
Joined: Nov 2015
Posts: 6
Likes: 0
I clicked on the link and it says video is private. My fan blade was hitting the shroud last week. It noise was metallic and intermittent. In my case one of the bolts holding the shroud to the rad support was missing. May want to make the vid "public" so members can see it.
Thanks for response man! sorry video should be public now.
Last edited by Srusl31; Nov 28, 2015 at 04:08 PM.
Melting Slicks
Joined: Apr 2009
Posts: 2,632
Likes: 112
From: Great Plains Iowa
It sounds like the tip of one blade is hitting the underside of the shroud. When they hit they usually hit in the 1 to 2 o'clock position so take a good look at how close the blades are to the shroud in that 1 to 2 o'clock area. And its usually the front of the blade tip that is touching because of the shroud's radius. If you find it is touching you can easily trim the foreword tip of each blade an equal amount. I used an ordinary washer to scribe around to mark a nice radius on my fan blades and took care of my fan-hitting-shroud problem.
Thread Starter
6th Gear
Joined: Nov 2015
Posts: 6
Likes: 0
It sounds like the tip of one blade is hitting the underside of the shroud. When they hit they usually hit in the 1 to 2 o'clock position so take a good look at how close the blades are to the shroud in that 1 to 2 o'clock area. And its usually the front of the blade tip that is touching because of the shroud's radius. If you find it is touching you can easily trim the foreword tip of each blade an equal amount. I used an ordinary washer to scribe around to mark a nice radius on my fan blades and took care of my fan-hitting-shroud problem.
Melting Slicks
Joined: Apr 2009
Posts: 2,632
Likes: 112
From: Great Plains Iowa
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