Fluid Leaks - ZR-1 Net Registry Forums

AZ ZR1 · 07-26-2015

So coming back from Caffeine and Corvettes earlier this month and I noticed the rear end speckled with oil. I tried looking under the car but since Clint lowered this puppy good there was no chance of that happening. I debated putting the car on jack stands but was uneasy. Luckily I did a search for a Kwiklift on Craigslist and found one close by for more than half the price brand new and the guy delivered it. Put it together yesterday and slide under the car no problem. Man this is pretty cool! Anyways...so looking under the car you can see the exhaust pipes soaked with oil. I looked up into the differential and see most of the fluid trail coming from the bolt shown. Don't see anything really coming from a seal. I keep moving forward and then on the bottom of the bell housing I see more oil. The passenger side of the oil pan looks more saturated with oil than the drivers side and I took a couple of pics of where it looks like its coming from. From reading other posts should I just attempt to tighten the bolts that look wet? For full disclosure I'm by no means a mechanic so I probably fall under the category of a waxer but I invested into my dream car so I need to make an effort to address issues on my own. So I apologize in advance if I ask some stupid follow up questions to dummy it down for myself. I'd appreciate any advice you guys can give me as how to attack fixing my fluid leaks. Thank you!

GOLDCYLON · 07-26-2015

Tighten the bolts and clean the area. drive her and look for more leaks . The bolts do come lose. GC

WARP TEN · 07-26-2015

Oil pan bolts are famous for leaking. As noted above. tighten up all the pan bolts you can reach. The toughest to get at are the ones on the front of the oil pan. They all do often leak although I know Marc Haibeck's experience is that tightening them usually solves the problem for a long time. --Bob

AZ ZR1 · 07-26-2015

Ok I started with cleaning the differential. Question...is the bolt supposed to be partial unthreaded when completely tight? I tried to tighten it with no movement but could loosen it fine and got a whiff of the lovely smelling diff oil.

07-26-2015	#2
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: Fluid Leaks Tighten the bolts and clean the area. drive her and look for more leaks . The bolts do come lose. GC __________________ 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

07-26-2015	#3
WARP TEN Join Date: Apr 2007 Location: Lake Bluff, IL Posts: 2,096	Re: Fluid Leaks Oil pan bolts are famous for leaking. As noted above. tighten up all the pan bolts you can reach. The toughest to get at are the ones on the front of the oil pan. They all do often leak although I know Marc Haibeck's experience is that tightening them usually solves the problem for a long time. --Bob __________________ 2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough"

07-26-2015	#4
AZ ZR1 Join Date: Apr 2015 Location: Peoria, AZ Posts: 20	Re: Fluid Leaks Ok I started with cleaning the differential. Question...is the bolt supposed to be partial unthreaded when completely tight? I tried to tighten it with no movement but could loosen it fine and got a whiff of the lovely smelling diff oil. __________________ ___________________________ Sean 1994 ZR-1 #152 White/Red (Sold)

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