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ChuckR

Tranny hum: update

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when i last reported in I had installed a used tranny. it shifted awesome, but... had a hum (or whirring) on 1-2-3rd and in neutral (clutch out), but not clutch in or in 4th. we thought bearings - I had my good friend and trusted mechanic drive and listen and he said bearing for sure. we took it to a fully vetted trusted tranny guy (his friend), said same thing - bad bearings. I gave him the car and he confirmed bad bearing and put in good ones and ---- i still get the whirr / hum...what the...this can't be a normal sound but he confirmed that the bearing in the tranny originally were in fact not good...the car shifts and drives superb, do i just drive it, or have him open it up again? or is this not unusual?

thanks, Chuck

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Drive the tires off of it like it was designed to be driven. Then, go worry about something else.

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yea! - give us a good quality Utube

with good sound and no AIR RUSHING

around the mic so we can hear it.

How long have you owned an o2 ?

How many miles have you driven an o2?

Have you ridden in any other o2s?

Maybe your the whiner and not the gearbox ?

Exactly which bearing(s) did this trans-doctor replace?

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thanks guys. CD, I could definitely be the 'whiner' here. I have owed two 02's, this one for over 6 years. It was an auto, and I actually got a 4spd tranny from you to convert it - this current tranny replaces that one, gears got way to crunchy in yours.

I don't know which bearings he replaced exactly, but will call him tomorrow for confirmation (picked the car up very late on fri).

here's a link to a video with the sound. thanks in advance.

http://www.youtube.com/watch?v=avCG875pcmY&feature=youtu.be

chuck

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Chuck - I think the rest of the class will agree with me

that that noise is nothing but normal o2 goodness.

now then, about that Eldorado of yours?!

got Cop color? Cop tires? Cop bags?

Guzzi1_resized400X266.jpg

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thanks for your diagnosis CD. Yes, original LAPD bags, color etc... great bike. Had a toaster tank BMW that I regret selling, but the Guzzi will do.

thanks again, Chuck

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When you had bearings replaced was the "throw-out bearing" one of them?

I agree, it sounds like throw out bearing.

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hi guys, i did replace the throwout bearing and the pilot bearing. I also thought the throwout bearing but that sound goes away with 4th gear, i figured if it were the throwout bearing it would be consistent with all gears? chuck

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finally spoke to tranny fellow about what exactly he did. it seems he did the minimal, only changed the front input bearing - said the others were okay...not sure why he wouldn't have renewed everything. I know my tranny 'sound' seems acceptable for an 02, but i'm now suspicious. He was adamant that he 'fixed' it when I pressed him, but having it sound similar to when I brought it to him suggests he didn't do enough. c

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