1971 Drain Plug Tricks
Thread Starter
Pro
Joined: Mar 2010
Posts: 615
Likes: 25
From: Graham NC
1971 Drain Plug Tricks
hello,
are their tricks to removing the drain plug on 1971. i could not find enough room to get a wrench on the plus and used stubbies. am i missing something?
thanks
are their tricks to removing the drain plug on 1971. i could not find enough room to get a wrench on the plus and used stubbies. am i missing something?
thanks
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
If it's the engine oil drain plug, you should be able to just put a wrench on it and turn it. If you can't, you have something weird going on there.........
Scott
Scott
Burning Brakes
Joined: May 2009
Posts: 850
Likes: 36
From: Providence RI
As a teen, I once stripped out the head of a drain-plug on a '79 Plymouth Horizon; all because I got my orientiation mixed up when upside down and with the drain-plug facing away from me, I was *tightening* rather than loosening the plug... 
I filed the outside flats down to 12mm, and it came off as soon as I turned it the proper way.
But on my '71, mine loosens with a simple box-wrench.
I filed the outside flats down to 12mm, and it came off as soon as I turned it the proper way.
But on my '71, mine loosens with a simple box-wrench.
Racer
Joined: Apr 2002
Posts: 345
Likes: 0
From: ny
Look at post number 9 in my thread here (I have a photo of mine).. I have a 71 and getting the plug out is a pain. I am getting an aftermarket with the drain off to the side http://forums.corvetteforum.com/c3-g...otor-71-a.html
Le Mans Master
Joined: Oct 2010
Posts: 6,942
Likes: 850
From: melbourne florida
2023 C3 of the Year Finalist - Modified
i use a box end and only a box end, it grips all around and grips well that way. a socket is hard because it can get crooked and slip off. its just not as secure to me.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Drifting
Joined: Mar 2011
Posts: 1,886
Likes: 9
Get a 5/8" open end wrench and, after a few yoga lessons, you can wiggle your hand in there and unscrew the filler plug. Easier, probably, if you loosen it while the car is up on jacks or ramps. You just have to refill it while the car is level. If you can't get under it while it's on the ground, back it onto the ramps, set the parking brake firmly, and then lift the front and jack stand it. Not easy, but doable.
Last edited by gcusmano74; Aug 28, 2011 at 01:06 PM.
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
Look at post number 9 in my thread here (I have a photo of mine).. I have a 71 and getting the plug out is a pain. I am getting an aftermarket with the drain off to the side http://forums.corvetteforum.com/c3-g...otor-71-a.html
Thread Starter
Pro
Joined: Mar 2010
Posts: 615
Likes: 25
From: Graham NC
i couldn't even get a stubby wrench on the differntial bolt rear end bolt, took me an hour. what is the trick to checking differential oil and filling? does gl-5 already have postirac additive, any oils you would recommend? thanks