Oil on my garage floor - ZR-1 Net Registry Forums

USAFPILOT · 04-19-2014

won't get to it until next week, flying a trip leaving tomorrow morning. This is going to bother me. dangit. Just a small drip though. Hoping for an oil cooler line or something simple. Fearing a main seal.

4-cam · 04-19-2014

First check the oil pan bolts. Very common problem. Mine were only finger tight. You will need to remove the 2 short pieces of the k cross member to get at them but not to bad of a job.

scottfab · 04-19-2014

Know the feeling of leaving behind a gnawing, eat at the back of your brain problem. But.....
while traveling you can formulate the "game plan"
1. Jack up car and clean meticulously.
2. if already very clean just inspect for location of drip.
3. Once drip location is found formulate action.
4. is the drip dead center or offset to the passenger side? (oil lines)
5. is the drip off set to the drivers side? (hydraulics - clutch ?)
6. is the drip dead center and signs on the cross member? (oil pan)

One drop over night per drive is enough to isolate.
Less than that? Not so easy.

WARP TEN · 04-19-2014

What they both said. I have a very small drip--maybe a drop every few weeks. Marc said to check the spot and if it is fairly clear oil it is probably from pan bolts or some other common engine leak. If it is inky black, it is probably a rear main seal because when it drips it picks up clutch dust. Mine seems to be the main seal as it is very black but it is so limited I do not worry about it. Marc said it is extremely rare to have a rear main seal fail. -Bob

White Bullet · 04-19-2014

I just went through an oil leak that was difficult to find. I took the car to a shop and they said they would have to pull the motor to find the leak!

I did a little research on Marc's web sight which lead me to checking the oil pressure switch. I removed the electrical connector and oil was leaking into the wire loom and allowed the oil to drip at the front of the engine below the main crank shaft.

Good luck I am sure you will find it.

04-19-2014	#1
USAFPILOT Join Date: Aug 2007 Location: Spring TX Posts: 1,347	Oil on my garage floor won't get to it until next week, flying a trip leaving tomorrow morning. This is going to bother me. dangit. Just a small drip though. Hoping for an oil cooler line or something simple. Fearing a main seal. __________________ 1994 #293 ZR-1 Stainless Works Long Tube Headers, B&B catback w/ X-Pipe, 18" Shelby Series One Wheels, SLP CAI.

04-19-2014	#2
4-cam Join Date: Feb 2010 Location: Arvada Colorado Posts: 194	Re: Oil on my garage floor First check the oil pan bolts. Very common problem. Mine were only finger tight. You will need to remove the 2 short pieces of the k cross member to get at them but not to bad of a job. __________________ [I]4-cam[/I] [I]1991 ZR-1 Blk/Gry #31[/I] [I]SW Headers/Xpipe- Dynomax Muffs[/I] [I]Ported top end[/I] [I]Secondaries Removed[/I] Tune by Dominic

04-19-2014	#3
scottfab Join Date: Jan 2009 Location: Portland Oregon metro area (Washington side) Posts: 3,206	Re: Oil on my garage floor Know the feeling of leaving behind a gnawing, eat at the back of your brain problem. But..... while traveling you can formulate the "game plan" 1. Jack up car and clean meticulously. 2. if already very clean just inspect for location of drip. 3. Once drip location is found formulate action. 4. is the drip dead center or offset to the passenger side? (oil lines) 5. is the drip off set to the drivers side? (hydraulics - clutch ?) 6. is the drip dead center and signs on the cross member? (oil pan) One drop over night per drive is enough to isolate. Less than that? Not so easy. __________________ Scott Vett owner since 1979._It's about the car and the people

04-19-2014	#4
WARP TEN Join Date: Apr 2007 Location: Lake Bluff, IL Posts: 2,120	Re: Oil on my garage floor What they both said. I have a very small drip--maybe a drop every few weeks. Marc said to check the spot and if it is fairly clear oil it is probably from pan bolts or some other common engine leak. If it is inky black, it is probably a rear main seal because when it drips it picks up clutch dust. Mine seems to be the main seal as it is very black but it is so limited I do not worry about it. Marc said it is extremely rare to have a rear main seal fail. -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"

04-19-2014	#5
White Bullet Join Date: Apr 2008 Location: Gainesville GA Posts: 231	Re: Oil on my garage floor I just went through an oil leak that was difficult to find. I took the car to a shop and they said they would have to pull the motor to find the leak! I did a little research on Marc's web sight which lead me to checking the oil pressure switch. I removed the electrical connector and oil was leaking into the wire loom and allowed the oil to drip at the front of the engine below the main crank shaft. Good luck I am sure you will find it. __________________ 1991 ZR1, White/Red. Last edited by White Bullet; 04-19-2014 at 08:53 PM.