Years (if not decades) ago I would sometimes come across a stripped oil drain. I could go to the local auto parts store and buy something that looked like the nipple on a baby bottle (but much thicker) to jam into the drain hole. It came with a special tool to expand the end as you inserted it. I…

It seems to me that a 5 dollar self-tapping drain plug would be far superior compared to what will likely be a cheap hunk of inferior Chinese rubber. Some may remember those disentegrating Chinese valve stems that led to some blowouts a few years back.

OK. I gave up and bought a M12 x 1.75 single oversize self tapper ($3), which leads to another question. What torque should I install it to? The original factory manual states 20 NM or 14.5 ft-lbs. Should I set the self-tapper to the same torque, or maybe a little less?

I’m with OK on this. I used one for years till I sold the car with nary a lost drop of oil. If or when it spins, go another size up, don’t be overly oncerned about the torque wrench. Obviously the original was over done. I just treated it like aluminum bolts and only wrist tightened when grounded. T…

You can tighten it to your torque specs… On the other hand just be prudent and you can do it by the seat of your pants…dont over do it. Also make sure you have a nice new copper (or vinyl) drain plug washer installed on it as well.

I agree with everyone that an oversize tap & plug is much better, but the plug that you’re referring to I’ve heard called “boat plugs”…because they’re common on boats. The technical term is, as OK4450 said, expansion plugs. And they can be acquired at marine equipment stores. Although if you live in…

Sears Hardware has the expansion plugs…I bought a few to keep water out of my Exhaust pipes when washing two identical Yamaha Banshees… they work like a charm for that…

If oversized plugs are installed with a plastic washer/seal, 8 - 10 ft lbs should keep them sealed if the oversize is a snug fit. Painting the threads with pipe sealing shellac and letting it dry prior to final assembly might assure that there is no leak and no vibrating loose.

I bought a single oversized drain bolt Dorman Brand) to repair a stripped drain plug in a Kia Rio. I have to work under the car and I can’t get the new plug to seat and begin cutting new threads. How do you get these things started?

What kind of plug did you buy? There are plain oversize plugs and there are oversize plugs that are designed to cut their own threads. Just trying to make sure you have the right widget.

The tip if the plug is tapered with four slots 1/8th deep, cut into the end of the plug… I dob,t know if your have to put alot of pressure on the plug while your trying to screw it in. I can’t get much pressure on the plug in the position I am working under the car. After multiple trys to seat …

Rubber oil drain plug?

Maintenance/Repairs

copcarguy March 21, 2017, 12:51am 24

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Rubber oil drain plug?

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