richmond whine
Thread Starter
Staging Lane
Joined: Mar 2006
Posts: 60
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richmond whine well i just got my richmond 4.10s along with ratech master kit installed the other day
everything was set correctly pinion bearinbg pre-load 24 inch/lbs, backlash .007-.008" , and gear pattern/depth couldn't of been better. But i still get whine not so bad 1-4th gear but on the highway is substantial. Anyone expierience same thing? a
also should i change gear oil after 500 miles, and when you think it would be safe to "beat" on it?
thanks
everything was set correctly pinion bearinbg pre-load 24 inch/lbs, backlash .007-.008" , and gear pattern/depth couldn't of been better. But i still get whine not so bad 1-4th gear but on the highway is substantial. Anyone expierience same thing? a
also should i change gear oil after 500 miles, and when you think it would be safe to "beat" on it?
thanks
Joined: Mar 2005
Posts: 1,599
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From: 32639 Groesbeck HWY. Fraser MI 48026
IMO you have 2 strikes against you. One being 7-8 thousands becklash and the second running a synthetic oil for break in. Richmond gears like backlash to be a little more open say like 9-10 and a dyno base oil.
Good luck.
Good luck.
TECH Fanatic
Joined: Sep 2004
Posts: 1,124
Likes: 1
From: Las Vegas
I gotta second Scott on this.
FYI: The FAQ is just a guide line. I have done gear sets that called for a specific lash, but in the housing they were going into... it turned out quite different all together. The old rule of thumb is 0.001" for every inch of ring gear diameter.... but even that is a guide line to get you close.
I would step up to a straight weight 140 oil as well, when you get to an oil change in the differential.
FYI: The FAQ is just a guide line. I have done gear sets that called for a specific lash, but in the housing they were going into... it turned out quite different all together. The old rule of thumb is 0.001" for every inch of ring gear diameter.... but even that is a guide line to get you close.
I would step up to a straight weight 140 oil as well, when you get to an oil change in the differential.
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Staging Lane
Joined: Mar 2006
Posts: 60
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well i just read some of your other posts, where can i get Schaffer or Torco 140? Should i add friction additive if its a torsen? with the thicker oil what should BL be opened up to, to allow for proper lubrication
oh man. I thought I was alone.
The whine from my Richmond is annoying !! Especially on the freeway.
Accelarating from 1-4 not so much, but once on the freeway it irritates me. I used the GM Differential Fluid and an additive they gave me.
Im thinking about stepping up to the 140 oil.
The whine from my Richmond is annoying !! Especially on the freeway.
Accelarating from 1-4 not so much, but once on the freeway it irritates me. I used the GM Differential Fluid and an additive they gave me.
Im thinking about stepping up to the 140 oil.
I am happy thus far with my first set of Richmonds (3.73) in my 12 bolt.I set it up with the backlash at .010".It was loud upon the initial 10 mile break in,but after 4 more of those cycles it quieted down nicely.By the end of last summer I had around 300 miles on the rear and it had become nice and quiet.I get a slight howl around 45mph but nothing I can't live with.I emailed setup pics to Richmond and Randys ring and pinion (where I bought the Eaton) and they said that it looked the best I was gonna get them since they are Richmonds.This is my third rear to date I have built myself and am happy that I got it as well as I did.
I plan to service it with the Schaffer #209A 140wt oil since I need to get the synthetic out of it.I ran it since it came with the gears and install kit but after researching it realized that was rather dumb.The car has sat all summer since I am about to finish up my T56 swap,I just hope the synthetic didn't eat me Eaton up since it has been sitting
I plan to service it with the Schaffer #209A 140wt oil since I need to get the synthetic out of it.I ran it since it came with the gears and install kit but after researching it realized that was rather dumb.The car has sat all summer since I am about to finish up my T56 swap,I just hope the synthetic didn't eat me Eaton up since it has been sitting