Leaking Oil Drain Plug?
Thread Starter
Burning Brakes
Joined: Aug 2004
Posts: 771
Likes: 0
From: Washington District of Columbia
Oil Pan Threads Stripped?
Some few years ago, when the dealership was changing my oil, the threads on the oil pan were stripped slightly. I didn't notice this until I began changing the oil myself. I had to take special precautions when replacing the drain plug ( doubling the washers seemed to work). I changed the oil a couple of weeks ago and noticed an oil leak at the "oil drain plug". I believe it's because of the stripped threads on the oil pan. Where can I purchase a "Self-tapping"/over size oil drain plug for my 1994 LT1 Corvette? Also, are any of you using the "Quik Valve" (no mess) drain plug apparatus? Does it work? My experience with oil changing has been quite messy. Thanks
Last edited by Donne Trav; Dec 6, 2010 at 05:13 PM. Reason: new title
Le Mans Master
Joined: Jan 2003
Posts: 5,858
Likes: 7
From: Santa Maria CA
$3 for a new drain plug and washer at the parts stores. It's a 1/2" X 20 thread.
The quick drain valves are not a good idea in my opinion. I mean come on. Is it that time consuming to crack loose a single drain bolt every several thousand miles anyway?
The quick drain valves are not a good idea in my opinion. I mean come on. Is it that time consuming to crack loose a single drain bolt every several thousand miles anyway?
Last edited by 86PACER; Dec 7, 2010 at 05:50 PM.
Safety Car
Joined: Dec 2006
Posts: 4,290
Likes: 6
From: St Marys GA
I have one of the quick-drain things. Not sure if there are different kinds, but mine is a ball-valve with a little lever on the top that operates the valve, and it spring-locks into the shut position. It's really nice; no tools, no dropping bolts, just jack the car up and turn the lever.
For the threads, not sure about how to fix that. You could try just running a tap through it, not sure of the thread pitch though,.
For the threads, not sure about how to fix that. You could try just running a tap through it, not sure of the thread pitch though,.
Racer
Joined: Aug 2008
Posts: 302
Likes: 0
From: Lebanon MO
I believe any auto parts store should have them. Either go that route, or re-tap and use different size plug. Re-tapping is going to leave metal shavings, so extra care is needed to remove them before start-up. I also have been thinking about going to these valves. Have it on my lawn mower, and love it. I make my kids change my oil, and I always have to loosen the plug for them, what a pain, lol. No, it's not that hard to loosen a bolt every now and then, but why do it if you don't have to, right?!
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Drifting
Joined: Aug 2008
Posts: 1,921
Likes: 53
From: Philadelphia Pa
I have one of the quick-drain things. Not sure if there are different kinds, but mine is a ball-valve with a little lever on the top that operates the valve, and it spring-locks into the shut position. It's really nice; no tools, no dropping bolts, just jack the car up and turn the lever.
For the threads, not sure about how to fix that. You could try just running a tap through it, not sure of the thread pitch though,.
For the threads, not sure about how to fix that. You could try just running a tap through it, not sure of the thread pitch though,.
Safety Car
Joined: Dec 2006
Posts: 4,290
Likes: 6
From: St Marys GA
