Jump to content
Sign in to follow this  
dattocam

Gearbox filler plug seized

Recommended Posts

Guys,

 

As the subject line says, I'm in need of some black magic so I can remove filler plug. I don't really wish to pull engine and box out to remove the seized plug.

 

Any tips would be great.

 

Cheers Cam

Share this post


Link to post
Share on other sites

It's a common mistake, you'll only do it once and from now on you'll always crack the filler plug before draining the oil. Same goes for the diff too.

 

Try the tightening method. A heat gun might work but I doubt a hair dryer will get it hot enough. 

Share this post


Link to post
Share on other sites

I've had this though not on a z. The filler actually burred so it was stuffed.

 

I heated it up with a blowtorch then hit it with a hammer and screwdriver to turn it

Share this post


Link to post
Share on other sites

yeah be careful not to round off the plug,

 

I've had to do the hammer & screwdriver trick to one of my previous cars but it was a swaybar link where the nut rounded on me.

 

I've read on here or another forum that you can fill up the gearbox using the breather hole inside the cabin where the shifter is? you might have to take out the ash tray or remove the shifter boot but I'm sure someone on here can confirm

 

good luck mate

Share this post


Link to post
Share on other sites

Had the same issue on my box I  the track car. Had to remove the box to get it out in the end. What I don't get is why people have do them up to tight. They are a tapered thread and will seal just fine without the big over tighten.

Share this post


Link to post
Share on other sites

Going to use the propane bottle and heat around plug, the sametime as using a trolley jack on pipe wrench to leaver it. If that won't move it... Well I guess motor and box will be coming out :-\

Share this post


Link to post
Share on other sites

You can take just the box out. Just make sure you have something to stop the engine from leaning to far back.

Share this post


Link to post
Share on other sites

Why do people over tighten them....?  INEXPERIENCE!

 

If you can get at the plug, a hammer and cold chisel will work to remove. When you reinstall, apply neverseize to the threads and do NOT over tighten. Although we used to lockwire them in the Nissan race cars, I never saw them loosen and actually test the wire. Just nip them up and they will come straight out every time.

 

Cheers

Share this post


Link to post
Share on other sites

Couldn't get it out so I jacked the car onto a 30deg lean removed the reverse switched and filled her up. Problem solved the gearbox stayed in the car. ;D

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×