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10-04-2020
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#1 |
 Join Date: Sep 2010
Location: Currituck, NC
Posts: 246
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Let's Play A Game (Do U see what I see)
The two photos on the left are of a leaking pinion seal that is still in the car.
The two photos on the right are of a non leaking pinion seal on my shelf. Who can guess why this pinion seal is leaking???
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:cheers: [B][COLOR="seagreen"]Shrek[/COLOR][/B] [SIGPIC][/SIGPIC] |
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10-04-2020
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#2 |
   
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,153
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Re: Let's Play A Game (Do U see what I see)
Tear or compromised seal ?
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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10-04-2020
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#3 |
Join Date: Oct 2004
Location: Folsom CA
Posts: 1,647
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Re: Let's Play A Game (Do U see what I see)
Almost looks like the seal is in upside down.
The rubber part of the seal is outside the seal itself and is riding up the shaft of the pinon. and....the nuts are loose on the two right pictures. 'Crabs
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TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B] |
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10-04-2020
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#4 |
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Join Date: Sep 2010
Location: Currituck, NC
Posts: 246
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Re: Let's Play A Game (Do U see what I see)
Here's a hint.
Look at the stamped steel dust cover pressed onto the yoke. Now think about where the lip of the seal should ride.
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:cheers: [B][COLOR="seagreen"]Shrek[/COLOR][/B] [SIGPIC][/SIGPIC] |
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10-04-2020
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#5 |
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Join Date: Aug 2010
Location: ottawa canada
Posts: 155
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Re: Let's Play A Game (Do U see what I see)
Seal , what seal!
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10-05-2020
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#6 |
 Join Date: Feb 2011
Location: Clayton, North Carolina
Posts: 1,133
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Re: Let's Play A Game (Do U see what I see)
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Lou[COLOR="Red"][B][SIZE="4"][/SIZE][/B][/COLOR] |
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10-05-2020
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#7 |
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Join Date: Aug 2020
Location: Ladson, SC
Posts: 18
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Re: Let's Play A Game (Do U see what I see)
Lack of RTV on the outside of the seal between the seal and the housing?
The lack of the dust cover will change the diameter where the seal rides. Why isn't there a dust cover on the leaking unit? |
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10-05-2020
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#8 | |
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Join Date: Sep 2010
Location: Currituck, NC
Posts: 246
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Re: Let's Play A Game (Do U see what I see)
Quote:
Hoping it's not actually a crack. But doesn't look good. Sucks because I've had his car since Nov and tending to a long list of repairs and maintenance while he got settled into his new place. I was done and ready to send it when I found this crap during my final inspection. He's cool, he said keep it till spring if I have to. Hoping I can take care of this last problem and send it north before his first snow. If not, it'll keep the wife's Z company for another winter. 
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:cheers: [B][COLOR="seagreen"]Shrek[/COLOR][/B] [SIGPIC][/SIGPIC] |
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10-05-2020
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#9 | |
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Join Date: Sep 2010
Location: Currituck, NC
Posts: 246
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Re: Let's Play A Game (Do U see what I see)
Quote:
OK here's my assessment on the leak. Could be wrong but this is how I see it and won't know for sure until I get it out of the car. Back in the 90s, Vette Drs swapped in a 4.09 gear and I'm guessing the pinion shaft/spline diameter was smaller, so they used a smaller yoke/dust cap that retained the 1350 u-joint. Fast forward.....A shop recently installed a new seal and probably ordered a stock Dana 44 seal not realizing it had a smaller diameter yoke and dust cap. Then proceeded to install the seal lip over the dust cap. I'll verify all of this when I get the rear out of the car. Hopefully it's any easy fix and the case is not cracked as pointed out by lfalzarano.
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:cheers: [B][COLOR="seagreen"]Shrek[/COLOR][/B] [SIGPIC][/SIGPIC] |
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10-05-2020
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#10 |
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Join Date: Aug 2020
Location: Ladson, SC
Posts: 18
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Re: Let's Play A Game (Do U see what I see)
Ugh... Ya, that ain't gonna work out so good.
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