Re: mpeg of my tranny noise

Posted by Malcolm [Boardmaster] on Monday, November 29, 2004 at 3:07AM :

In Reply to: Re: mpeg of my tranny noise posted by cgrey8 from sdn-ap-012scfairP0303.dialsprint.net (63.189.177.49) on Monday, November 29, 2004 at 1:16AM :

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: I downloaded the audio 1st, and then the video. The video didn't really show much.

I didn't know if just the audio would work for others. I haven't played much with the cam corder. Plus I figured you'd get an idea as to where the sound was recorded from.

: The one thing that still pushes me to the pilot bearing even now is that this only happens when you let off on the clutch right?

No actually it will happen with the clutch engauged or disengauged. When I was going down the highway at 70 it's quiet as long as I'm applying power and keeping it constant. Like going up a hill. As soon as the truck coasted or I let off the gas it made that noise. I then hit the clutch at 70ish and it made the noise extreamly loud and continously. I quickly let the clutch back out and applyed gas to keep it quiet. I then tried hitting the clutch again this time putting it into neutral and I let the clutch out too. It was once again very loud and horrible to listen too. I immediately put it back in 5th and got on the gas.

: If things were really loose in there and there ends up being no pilot installed, you could be hearing the tip of the input or the clutch itself slapping around.

I'll do more testing to be sure but as I recall as I moved up onto the bell housing with my screw driver listening test it got quieter like the noise was right inside the tranny.

: Here's something else to try, does the sound change any between when the clutch is pushed and it's in gear or neutral? If it's in neutral, this would allow the input shaft to rotate and possibly give you more noise and vibration once the clutch plate and input got up to speed. There's usually enough friction to spin the input and clutch disk when there's no load (i.e. in neutral).

I'll test this tomorrow.

: If you hear/feel audible difference between the tranny in and out of gear with the clutch pressed,

Nope. On the highway pressing in the clutch made the loudest aweful noise regardless of whether it was in gear or neutral.

: Once the tranny's out and all is clear, crank the engine just to make sure it's nothing with the engine. You are more than sure it's the tranny or some part with it but it's worth the piece of mind...

I guess I could do this. I'd have to pull the bell housing to remove the clutch fork and throw out bearing and then reinstall the bell housing so I'll have a starter.

: If you decide to tear it down, give me an idea as to how difficult the upper bell bolts are to get to.

Well I already know the answer to that one. On my final install after the truck was painted I installed the motor by itself and then installed the bell housing, followed by the tranny. I don't remember any great problems getting to the bell housing bolts but I'll have to see now that it's been driven and everything's settled some. I can tell there were slight amounts of cab and or drive train settling after the first drive.

Looks like we have snow in the forcast for the next 2 or 3 days so all my testing over the next few days will have to be on jack stands.

Thanks
Malcolm

www.v8-ranger.com Follow Ups: Re: mpeg of my tranny noise - cgrey8 10:20AM 11/29/2004 (0) Post a Followup Name: E-Mail: ( default ) Subject: Message: : : I downloaded the audio 1st, and then the video. The video didn't really show much. : I didn't know if just the audio would work for others. I haven't played much with the cam corder. Plus I figured you'd get an idea as to where the sound was recorded from. : : The one thing that still pushes me to the pilot bearing even now is that this only happens when you let off on the clutch right? : No actually it will happen with the clutch engauged or disengauged. When I was going down the highway at 70 it's quiet as long as I'm applying power and keeping it constant. Like going up a hill. As soon as the truck coasted or I let off the gas it made that noise. I then hit the clutch at 70ish and it made the noise extreamly loud and continously. I quickly let the clutch back out and applyed gas to keep it quiet. I then tried hitting the clutch again this time putting it into neutral and I let the clutch out too. It was once again very loud and horrible to listen too. I immediately put it back in 5th and got on the gas. : : If things were really loose in there and there ends up being no pilot installed, you could be hearing the tip of the input or the clutch itself slapping around. : I'll do more testing to be sure but as I recall as I moved up onto the bell housing with my screw driver listening test it got quieter like the noise was right inside the tranny. : : Here's something else to try, does the sound change any between when the clutch is pushed and it's in gear or neutral? If it's in neutral, this would allow the input shaft to rotate and possibly give you more noise and vibration once the clutch plate and input got up to speed. There's usually enough friction to spin the input and clutch disk when there's no load (i.e. in neutral). : I'll test this tomorrow. : : If you hear/feel audible difference between the tranny in and out of gear with the clutch pressed, : Nope. On the highway pressing in the clutch made the loudest aweful noise regardless of whether it was in gear or neutral. : : Once the tranny's out and all is clear, crank the engine just to make sure it's nothing with the engine. You are more than sure it's the tranny or some part with it but it's worth the piece of mind... : I guess I could do this. I'd have to pull the bell housing to remove the clutch fork and throw out bearing and then reinstall the bell housing so I'll have a starter. : : If you decide to tear it down, give me an idea as to how difficult the upper bell bolts are to get to. : Well I already know the answer to that one. On my final install after the truck was painted I installed the motor by itself and then installed the bell housing, followed by the tranny. I don't remember any great problems getting to the bell housing bolts but I'll have to see now that it's been driven and everything's settled some. I can tell there were slight amounts of cab and or drive train settling after the first drive. : Looks like we have snow in the forcast for the next 2 or 3 days so all my testing over the next few days will have to be on jack stands. : Thanks : Malcolm Optional Link ( default ) URL: Title: Optional Image Link ( default ) URL: