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Vibration Noise Around 3600 RPM

2460 Views 10 Replies 7 Participants Last post by  matthewwhynot
If anyone else is getting a annoying noise around 3600-3650 RPM even in neutral, almost sounding like a rattly heat shield, I think I might have found another source. Open the access cover to check the oil and with the trail in Neutral, slowly increase the RPMs till the noise can be heard and then reach down and touch the drive shaft and see if the noise goes away. I have found the rear part of the front drive shaft between the trans axle and the center bearing likes to move (vibrate) front to back about 1/8 inch or so. Mine is pretty loud, but easier on the brain knowing where the noise is coming from.
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I gave up chasing vibration. Have 10 miles of foam tape used so far and it still manages to find new places to vibrate.
i think there was someone else who had that bearing that was going out or noisy. i know mine is.
Been chasing a rattle I thought was a heat shield, but I think it's my spark arrestor rattling inside the muffler. I might have to make some sort of shim or something.
Been chasing a rattle I thought was a heat shield, but I think it's my spark arrestor rattling inside the muffler. I might have to make some sort of shim or something.
open up the hole in the heat shield around the O2 bung, sneaky vibration comes from there. I also get an occassional vibration from the springs holding my exhaust on. When i switched exhaust the mounting bracket on the back would vibrate against the heat shield on the bottom of the cargo bed, quick tap with hammer and screwdriver gave me the necessary clearance to fix that.

You have any close up pics of that kolpin roof? I like the look of that one.
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open up the hole in the heat shield around the O2 bung, sneaky vibration comes from there. I also get an occassional vibration from the springs holding my exhaust on. When i switched exhaust the mounting bracket on the back would vibrate against the heat shield on the bottom of the cargo bed, quick tap with hammer and screwdriver gave me the necessary clearance to fix that. You have any close up pics of that kolpin roof? I like the look of that one.
hey drock, my kind of tools...a hammer and a screwdriver...just used a hammer yesterday to get the faceshield on the helmet...damn snaps/puny ass fingers...
arthritis is a bitch haha
heat shield around opening for that sensor should be larger - that vibrates like a bad jazz band trying to play a Charlie Daniels tune -

Take off the heat shield along with header and have header coated and then wrapped, reinstall and leave that instrument called a heat shield off -
I think I found my trouble lol there was a little round shim that goes on the spark arrestor. I just forgot to put it back in. I really like the Kolpin roof it doesn't have the side cutouts like the AC one. I got mine at homedepot.com for 199$ (american) free shipping to store. I'll post some pics later.
If anyone else is getting a annoying noise around 3600-3650 RPM even in neutral, almost sounding like a rattly heat shield, I think I might have found another source. Open the access cover to check the oil and with the trail in Neutral, slowly increase the RPMs till the noise can be heard and then reach down and touch the drive shaft and see if the noise goes away. I have found the rear part of the front drive shaft between the trans axle and the center bearing likes to move (vibrate) front to back about 1/8 inch or so. Mine is pretty loud, but easier on the brain knowing where t
If anyone else is getting a annoying noise around 3600-3650 RPM even in neutral, almost sounding like a rattly heat shield, I think I might have found another source. Open the access cover to check the oil and with the trail in Neutral, slowly increase the RPMs till the noise can be heard and then reach down and touch the drive shaft and see if the noise goes away. I have found the rear part of the front drive shaft between the trans axle and the center bearing likes to move (vibrate) front to back about 1/8 inch or so. Mine is pretty loud, but easier on the brain knowing where the noise is coming from.
This is an old thread but has anyone figured out how to stop this rattle noise?
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