12-26-2015 | #11 | |
Join Date: Feb 2011
Location: Vicksburg, MS
Posts: 135
|
Re: Damn oil drain plug
Quote:
I think the biggest problem is getting a decent angle, leverage. Working under a car on jack stands is torture to me. Might take it down to a mechanic I know well and see if he'll let me have some time on a lift.
__________________
[B][U]1991 No. 519[/U][/B] |
|
12-26-2015 | #12 | |
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,798
|
Re: Damn oil drain plug
Quote:
You hit it like Phil said? You tried pipe wrench like Jerry said? I guess Heat........Heat will break loose any kind of sealing/glue that someone used or corrosion. First......take a drive and get the oil good and hot.....then try to remove the oil drain plug with oil hot. I always use heat if nothing else works except on Cam Cover Original Torx 40s (could not get heat in that area)..... For The Cam Cover Original Torx 40s I use Chisel which works great (was actually very surprised a chisel works). And that with engine in car. Heat does work great (and the only concept that works) for the Injector Housing Coolant Manifolds Torx 30 bolts which are not only corroded in the threads but along the bolt shaft within the coolant manifold. I apply heat to each bolt length/Manifold length and Injector Housing threaded area for each bolt one at a time. Then make sure I do not mess up the Torx 30 slots. Heat ALWAYS works. I use an acetylene torch. Just do not start a fire and remember it is Aluminum Oil Pan. Apply heat directly to the area around the Drain Plug...try it.....apply more heat...try again.....and so on. Found this on google (which was maybe a steel oil pan). Quickly heat the plug with an oxy-fuel torch, then use a pre-set pipe wrench on it immediately, before it has a chance to cool. Just barely crack it, don't unscrew. Once it cracks loose, let it cool before unscrewing. Make sure to have water or a fire extinguisher handy, as flaming oil dripping out is a possibility. If the head is too far gone, weld a larger nut onto it. If you're lucky, the weld heat will be enough. Heat works on virtually any stuck fastener, far better than anything else, because above 1000°, rust becomes a lubricant. Aluminum melts at 1,221 deg F
__________________
Left Clickable links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 12-26-2015 at 11:48 PM. |
|
12-27-2015 | #13 | |
Join Date: Oct 2004
Posts: 1,890
|
Re: Damn oil drain plug
Quote:
A 5/8-18 oil pan drain plug is a more difficult find than most SO I'd be shopping maybe before visiting Your "friend". Maybe have Jerry send you a drain plug and the sealing washer first!! Another couple days I'd think of no concern. |
|
12-27-2015 | #14 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
|
Re: Damn oil drain plug
__________________
LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
12-27-2015 | #15 |
Join Date: Jan 2015
Location: Marietta, GA USA
Posts: 1,160
|
Re: Damn oil drain plug
I'm not sure how comfortable you might be with the following, but it's what I'd do (after trying everything to unscrew the plug).
Definitely have a new plug on hand as a first step. Also, the proper size tap, a magnet, dental picks and anti-seize. I'd try some sort of screw extractor kit, making sure the initial hole you drill is dead center. That most definitely should work, but if not, I'd keep drilling a bigger hole in the drain plug until it can be picked out in pieces. When done you'll want to run a tap through it so the pan's threads are true again. I'm guessing the plug is steel, so you can use a magnet to help clean up any swarf that gets inside the pan. There shouldn't be too much. You could blow air into the dip stick tube to help blow it out, too. Use anti-seize when putting the new plug in place. A range of possible ideas here: https://www.google.com/#q=screw+extr...oil+drain+plug Good luck. |
12-27-2015 | #16 |
Join Date: Apr 2007
Location: Northern VA
Posts: 2,661
|
Re: Damn oil drain plug
For everyones information the oil pan drain comes with a factory installed helicoil thread insert.
__________________
Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake |
12-27-2015 | #17 | |
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,798
|
Re: Damn oil drain plug
Quote:
Now that is NEWS I think before I start with some serious Oil Drain Plug Removal I would just remove the Oil Pan on a Lift (catch some spilled oil in a drip pan). Then get serious with the Oil Pan on a Bench. Helicoil Insert......Very Intersting......so the Helicoil is obviously steel inserted into a threaded (larger thread) Aluminum Oil Pan factor installed? Could that not mean that the steel Oil Pan Drain Plug is corroded to the Helicoil and in trying to remove the Drain Plug you are actually trying to remove the Helicoil?
__________________
Left Clickable links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 12-27-2015 at 12:19 PM. |
|
12-27-2015 | #18 |
Join Date: Jun 2015
Location: Texas
Posts: 530
|
Re: Damn oil drain plug
I ask this in all seriousness and without intent to insult the OP but are sure you turning it the correct way? Counter-clockwise.
|
12-27-2015 | #19 | |
Join Date: Oct 2004
Posts: 1,890
|
Re: Damn oil drain plug
Quote:
Could it be that the OP or PO was sold an incorrect drain plug and it was a seemingly "force fit" that someone assumed was correct and actually did "force it". OP - did you maybe purchase a replacement drain plug at some point? Last edited by WVZR-1; 12-27-2015 at 02:01 PM. |
|
12-27-2015 | #20 |
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,798
|
Re: Damn oil drain plug
Dave or Phil. explain the Helicoil business. I will take a close look at a couple oil pans on the bench today.
|
Thread Tools | |
Display Modes | |
|
|