Transmission fill plug won't come off! Subaru CVT

[slacktide_bitog]

I couldn't get the fill plug off the transmission. It's an 8mm allen hex key bolt. It broke my breaker bar. Subaru's torque spec is only 37 lb ft

I'm just glad I tried to do that first before draining the fluid

This is why you always take off the fill plug first--to make sure you actually can!

If I ever do get it off, I'll probably replace the fill plug with a new one, in case the plug is damaged in order to actually be removed. I think it's part #800122000. Is that right for the TR580 fill plug?

 

[Trav]

What size breaker bar 1/4"? Hit it with a small impact gun.

 

[Patrick0525]

I saw a FB post and the technician struck the back of the fill plug with an attached hex socket using a brass hammer to shock it loose,

 

[slacktide_bitog]

What size breaker bar 1/4"? Hit it with a small impact gun.

3/8 was used, and then a cheater bar made with the jack handle.

I saw a FB post and the technician struck the back of the fill plug with an attached hex socket using a brass hammer to shock it loose,

I hit it with a 1 lb hammer, but I guess that wasn't enough

 

[Hirev]

Aluminium case steel plug? Heat gun low setting a bit of time than your 1 Lb hammer a bit on the 8mm scoket than try.

 

[slacktide_bitog]

Aluminium case steel plug? Heat gun low setting a bit of time than your 1 Lb hammer a bit on the 8mm scoket than try.

I have a can of CRC Freeze-Off. That might work.

I'd afraid to use a heat gun due to having a few electrical wires/connectors near where the fill hole is

 

[Hirev]

I have a can of CRC Freeze-Off. That might work.

Give it a try.

 

[Trav]

3/8 was used, and then a cheater bar made with the jack handle.



I hit it with a 1 lb hammer, but I guess that wasn't enough

That can beak a small breaker bar, I am a bit surprised the 8mm hex didn't round out with that kind of force on it. Can you fit a small rattle gun in there?

 

[slacktide_bitog]

That can beak a small breaker bar, I am a bit surprised the 8mm hex didn't round out with that kind of force on it. Can you fit a small rattle gun in there?

Yeah I tried one of those right angle impacts on it, and it still wouldn't budge

 

[Patrick0525]

3/8 was used, and then a cheater bar made with the jack handle.



I hit it with a 1 lb hammer, but I guess that wasn't enough

It looked like a 4/5 # hammer. U could probably strike it with ur wifey’s 8# dumbbell. Don’t tell her u borrowed it. Lol

 

[Rand]

use a decent impact try tightening it a little too.
back and forth a few times then out.

They are a little notorious for this.. I remember in 2016? 2017? after I broke my wrist into 7 places hanging from a breaker bar by one arm trying to get the rear diff drain plug out. was doing 1 arm pullups and it wasnt budging.

Was afraid of cracking the alum housing with an impact..

Dewalt dcf899 had it out in 5seconds.

 

[Trav]

Yeah I tried one of those right angle impacts on it, and it still wouldn't budge

Put the socket on an old ratchet, I keep some old Craftsman raised panel things just for this sort of thing and hit the ratchet with some good hammer blows. Try it you may be surprised.

 

[slacktide_bitog]

use a decent impact try tightening it a little too.
back and forth a few times then out.

They are a little notorious for this.. I remember in 2016? 2017? after I broke my wrist into 7 places hanging from a breaker bar by one arm trying to get the rear diff drain plug out. was doing 1 arm pullups and it wasnt budging.

Was afraid of cracking the alum housing with an impact..

Dewalt dcf899 had it out in 5seconds.

I have a Craftsman mega torque impact wrench, which is supposedly made by Dewalt and similar to that DCF899

 

[6.7 CTD]

C4, but crawl out from underneath first

 

[JeffKeryk]

Not sure if this is similar to your car... I would try a Knipex Cobra pliers on it. They worked for me on the Camry drain plug that I damaged.
Those things can bite! Good luck.

 

[slo town]

Why does this even happen? So annoying. Seems like all the fill plug needs is a dab of lubricant on its threads and flange at time of factory build. Or maybe use a copper washer? But that'd cost 2 cents more per vehicle...

Scott

 

[slacktide_bitog]

Not sure if this is similar to your car... I would try a Knipex Cobra pliers on it. They worked for me on the Camry drain plug that I damaged.
Those things can bite! Good luck.

View attachment 290370

yes, it looks just like that

 

[spasm3]

I'd use heat, in case locktite was used on it, or some corrosion has set in. Propane torch.

 

[D60]

When I did the Mad Max SJ Forester I had to rig up my mid-torque 1/2" and do quick blips to shock it loose.

This is VERY common on the TR580 -- not sure why.

 

[D60]

C4, but crawl out from underneath first

I don't think a Ford C4 will bolt up to an FB25