Thread: For crying out loud... 5th gear whine

I replaced the input gear on the transfer today on the advice of wrinklearthur.

The whine has retreated to a fraction of its former glory. If I get the right speed and right application of throttle i can JUST make it out...

Comparing the whiny input gear to the known quiet one i installed the difference in machine quality was obvious to see. Both were cross drilled and relatively new however the known good one looked like it was properly machined where as the whiney unit looked like it was made on a lathe in rural Latvia...

Figure what remains of the noise might fade with time as the new faces bed in somewhat....

We will see how we go!

Originally Posted by phibbzy

I replaced the input gear on the transfer today on the advice of wrinklearthur.

I went for a ride in Phibbzy's Beast, hanging on for dear life while he rounded up some klicks per hour on the speedo .
My observations were; there was loud high pitched gear noise emanating from the transferbox area and as he had said, the noise was speed related in high range, I asked him to demonstrate to see if the same noise could be heard in low range.

White knuckle time! While we raced along a country road on the grass verge, I had to remind myself that Defeer's are stable up to a forty degree side slope and noted that the same noise was apparent around the same engine rev in forth gear low range.

Top cog in the transfer box was then to me the obvious source of the high pitched noise, I had to questioned Phibbzy about the gearbox's previous owner's state of hearing. I could hear the noise quite easily over my tinnitus .

After working on getting that cog out of the old box from his Defender, leaving Phibbzy to it, I left for home with all the goodies that he was willing to swap me for the stuff that I had brought up from my place .
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