Engine/Transmission (1998.5 - 2002) Mag-Hytec drain plugs.

[RClark]

The plug on my Mag-Hytec transmission pan has been overtightened. I didn't do it as the pan was installed and the unit serviced by the dealer. They claim that at the last service they didn't pull the plug but just dropped the pan. They sere supposed to have loosened it for me but I still can't get it free.

Does the pan have to be cool due to the fact that it is aluminum?

does anybody have any suggestions?

 

[Hohn]

ouch. This is a new one to me. This might involve trying to get a replacement plug from M-H, and a heli-coil to replace the damaged threads. You've gotta be careful with aluminum threads.



Justin

 

[Bob Wagner]

Read and weep



https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=102265

 

[MVieira]

RClark, Try taking a punch that is larger than the diameter of the allen wrench hole and with a hammer give it a couple of good hits in the center straight up. Sometimes the impact seems to break them loose. If that doesn't work you're going to have to get a cheisel and hit it in the direction of loosening and order a new one if you tear it up. Caterpillar uses alot of the same o-ring boss plugs and if you over tighten them they lock up. I have a Mag-Hytec pan also and I get my inch pound torque wrench out every time and torque it to 30 in. lbs. every time and haven't had a problem yet. I hope this works for you.

 

[RSarvie]

I saw that other thread also and thought to mention this.

I recently this winter had troubles when I stripped out a torx screw in a snowmobile clutch and couldn't remove it. (Aluminium Also BTW) A friend of mine who is an aviation mechanic, loaned me a tool. Made by Snap-On, it looks like a solid metal screwdriver handle with a 3/8 socket adapter on the end. You place whatever tool is needed on the socket, in my case a torx socket, or in the Mag-Hytec case, an allen socket, rotate the the end about 1/4 to 1/2 turn and it extends the end slightly, place it on the screw and rap the top of the metal handle with a hammer. It gives it a quick, high torque twist and can break free the screw. I hardly had any torx teeth left on the screw and was about to give up and drill it out. We just held it tight in the head and with one good blow, it broke it loose.

I just got my Mag-Hytec installed and on my pan I see it says 30 in/lbs, so hopefully mine was put on right. If anybody needs, let me know and I'll find out the name of that tool, but I'm not even gonna ask what it cost from Snap-On!

 

[Texas Diesel]

I'd like to know the name of the tool. TIA

 

[MVieira]

The tool is called an impact driver, you don't have to go to snap-on, but the quality from snap-on or mac are the best. Post tool or harbor freight have them.

 

[Chipstien]

Schucks and Napa also carry impact drivers. I wouldn't own a car without one.

 

[Yo Hoot]

Yea you can't work on a Jap bike without one.

 

[RSarvie]

"The tool is called an impact driver"



That's it. Worth it's weight in gold at the time that's for sure.

 

[rrausch]

When you finally get it out, and reinstall the plug the torque is about 30 Inch Pounds. Think of it this way... that is only about 2. 5 Foot Pounds!! That is only a little more than snug.

 

[Lsfarm]

Heat it up!

I install a lot of these pans. If the plug is tightened when the pan is warm then when it cools it really grabs the drain plug.



I use a heat gun, it is a hot-air gun used for thawing frozen pipes, heating and bending plastic tubing etc. Just heat the cover around the drain plug, or take the truck for a good hard drive and get the pan warm/hot and the plug will come out much easier.



As for the impact driver, they work great on slotted and Philips head screws, where the impact of the hammer drives the bit into the slot in the head of the screw. But with a MagHyTec plug, it is a hex allen , and there won't be as much advantage from the impact to loosen the plug, in fact without heating the pan first I believe the impact driver may strip out the hex hole, then the fun really begins!!



Just warm it up, it will come loose,



Hope this helps, Greg L