The gearbox oil

[Dyzel]

Hello, i am the new  member. Could anybody say how to pour the oil to gearbox for fiat 126p (0,652cm3).
I hear that from the upper cover, but how to get to this, do not removed the gearbox off, because it is a much work to do this Thx.

[smallcox]

Forget that,

Next to your drive shaft, (starter motor side) there is a bolt with a 13mm square drive on it. This is where you require to top it up from and is the oil level too.

[ChrisRLewis]

Welcome to the forum
There is an oil filler plug on the gearbox, near the driveshaft.. see pic
If you do not have the correct tool try using a 1/2" socket extension bar reversed.

[Dyzel]

Thank you... i will try to do this procedure

[skelz]

Silly Question how do you know if your low on oil.. what level should it be ?

[Aaron]

When you remove the filler plug with the car on level ground, a correctly filler gearbox should just weep out a small amount out of the filler hole.

However I recall GSXR126 tends to overfill his box, something which I also support with my experience on other eastern eurpoean FIAT copies (Lada).  In my instance, I raise the driver's side of the car enough to put a house brick under the rear wheel.  Then continue filling until it dribbles out of the drain plug in that position.  I ususally get another 300-400 ml in that way.

How much you can overfill is really a function of the driveshaft seals.  IF they are good you can keep a lot more oil in there longer than if they are worn (mine are wearing BTW - the oil leaks under my Niki are are from the gearbox and not the engine).  I also tend to mix in some of the Moreys / Lucas oil stabiliser stuff which helps to keep the oil in the box.

[Draigflag]

Is this the same on the BIS model?

[GTMaster]

Silly Question how do you know if your low on oil.. what level should it be ?

Gearbox oil needs replacing at 50000 kms, so at your second motor oil change or at 25000kms remove the plug and check to see if the oil seeps out as mentioned (unless it's leaking in which case it needs to be topped up frequently).

[skelz]

Mine leaks fairly heavy so I know what I am doing this weekend !!

[gsxr126]

yeah be careful skelz, not topping up my leaking gb regularly led to the repairs i'm doing now

[skelz]

The difference between you and me gsxr126 is that you have the skills to repair your little one, ,,,,,Id be ...well rhymes with ducked !!

[skelz]

http://www.lucasoil.com.au/content/view/96/128/
is this the stuff and should I be using it in my engine ?

What about this stuff ?

http://www.lucasoil.com.au/content/blogcategory/24/61/

[skelz]

Well tried to attack this job.. but cant budge the plug.... its in there real tight really swinging off it and it isnt moving a muslce

[gsxr126]

Are you doing the drain plug or the filler plug? The drain plug is best done with a wheel nut socket, forgot the size u need but an auto shop should sort u out. The filler plug is best done with a half inch socket bar as mentioned above. The plugs are cast steel screwed into alloy so they should budge eventually.

[skelz]

Swinging off the filler plug using the half inch socket extension...gotta a good grip but not moving at all..