Club126UK

Fiat 126 Chat => Fiat 126 Mechanical Problem Solving => Topic started by: andyzeetec on March 14, 2014, 08:26:54 PM

Title: Oil filler plug on gearbox (cannot undo)
Post by: andyzeetec on March 14, 2014, 08:26:54 PM: Need to change the driveshaft oil seals so just checking if I can undo the fill and drain plugs.

Fill plug has been rounded off by the looks of it, not really bad just looks like a spanner has sliped off. Tried various sockets but slips round, cannot get a 13mm spanner on it at the right angle as the ally rib is in the way aswell. Socket is easier as it is easy to get on the square plug but slips round.

Does anyone know if a special deep 13mm square ring spanner or socket exists, so it will grip the plug on all 4 sides and why do they use these square plugs >:( it's driving me up the wall, any other ideas on removing it (heat), as I really dont want to take the whole gearbox out to fill from top.

Thanks
Title: Re: Oil filler plug on gearbox (cannot undo)
Post by: Rusty's Uncle on March 15, 2014, 07:28:11 AM: Reverse a 1/2" drive short socket extension, tap it home on the plug then get a spanner on the square drive of the extension :)
Title: Re: Oil filler plug on gearbox (cannot undo)
Post by: andyzeetec on March 15, 2014, 05:00:49 PM: Quote from: Rusty's Uncle on March 15, 2014, 07:28:11 AM
Reverse a 1/2" drive short socket extension, tap it home on the plug then get a spanner on the square drive of the extension :)

thanks, I'll give it a go. :)
Title: Re: Oil filler plug on gearbox (cannot undo)
Post by: Hazey-n-Marc on April 19, 2014, 10:38:48 AM: You don'r have to remove the gearbox to fill through the top, just support it on a Jack on the mount brace, undo the mounts and lower it. You can then get a spanner in to remove the top plate. But it is a hassle.
Has anyone ever cracked their bellhousing trying to get the plug out? I am a bit worried that I might on mine.

Marc
Title: Re: Oil filler plug on gearbox (cannot undo)
Post by: andyzeetec on April 19, 2014, 09:56:48 PM: Quote from: Hazey-n-Marc on April 19, 2014, 10:38:48 AM
You don'r have to remove the gearbox to fill through the top, just support it on a Jack on the mount brace, undo the mounts and lower it. You can then get a spanner in to remove the top plate. But it is a hassle.
Has anyone ever cracked their bellhousing trying to get the plug out? I am a bit worried that I might on mine.

Marc

I had no luck with the half inch reversed extension, I could try some heat on the surrounding ally housing, although I'm now leaning towards a mechanic having a go at it.
Title: Re: Oil filler plug on gearbox (cannot undo)
Post by: Gadge on April 19, 2014, 10:15:54 PM: How about removing the reverse switch and filling it though there?
Title: Re: Oil filler plug on gearbox (cannot undo)
Post by: Hazey-n-Marc on April 19, 2014, 10:31:04 PM: Quote from: Gadge on April 19, 2014, 10:15:54 PM
How about removing the reverse switch and filling it though there?

Not sure. I think it would be hard to do unless the gearbox was stood on end.