Mk3 clutch change

[VW<3]

Hi guys
Im going to remove my gearbox in order to change the clutch and I need a list of parts that ill need
For example flange seals, crankshaft seal, clutch alignement tool etc...
An overall material list so i dont forget anything
I want to put basically everything new

 

[oilhammer]

How would the internet know that?

We'd need to actually know what car you have, with what engine, and what transmission. And possibly, which type (brand) clutch/flywheel it uses, as VAG switches around.

For us, it's easy. We only had one choice. I'm not sure you did, seems like you would have had many more possibilities.

 

[VW<3]

Mk3 Golf
1Z/AHU (btw is there a way to see the engine code on the VIN number?)
Gearbox I have no ideia....but i would assume it is an ASD
Brand of clutch i was going with SACHS

 

[oilhammer]

So the A3 TDI, VE90, would likely have a Sachs clutch, yes. With the 02J transmission. We did not get that car here. We did get the Jetta (you may have called them Vento).

A Sachs kit would have everything you need, including the alignment tool usually. Only extra I might add is the clutch release fork and pivot pin.

 

[VW<3]

Ok, yes I think it is the O2J
But what else would I need?
Transmission axle seals, Differencial seals, clutch seal?
Ive looked over on a online shop and it has similar names for different seals and i I just dont want to buy the wrong stuff

 

[oilhammer]

I wouldn't be replacing seals unless you had a cause to do so.

You said you were changing the clutch. Does the engine or transmission also have a leak?

 

[VW<3]

Yes I have a leak between the engine and the transmission so I would assume it is the crank seal...
And the back of the gearbox (differencial) also with time I can see some oil

 

[oilhammer]

Rear sealing flange also will require the oil pan be removed, so you'd need a gasket for that too. The sealing flange usually comes with the install ring already in it.

 

[VW<3]

Rear sealing flange = crankshaft seal?

 

[oilhammer]

The seal is integral with the flange, yes.

Rear Mainshaft Seal (A3)(B4) 028103171B 804.850 | IDParts.com - Diesel Parts

 

[VW<3]

Hmm ok
But I can change only the seal right? Or is it better changing the whole thing?

 

[oilhammer]

The seal is part of the flange. That's what 'integral' means. It is integrated into the flange.

 

[VW<3]

Oh ok
I didnt know that
On that online shop I was talking about it appears on both forms...seal only and with the flange

 

[VW<3]

But basically I´ll need oil pan gasket, rear flange seal, 2x transmission axle seals for the gearbox, the clutch seal, SACHS clutch kit and I think thats all right?

 

[garciapiano]

He already answered your question.

when I do the clutch, I change everything that is easily accessible with the transmission out.

1. Flywheel
2. Pressure Plate
3. Flywheel Bolts (they are one time use)
4. Rear Main Seal
5. Input shaft seal / guide tube
6. Throwout Bearing
7. Release fork
8. Pivot Ball
9. Transmission Oil - fill is 2.1 L
10. Output shaft seals
11. 12x Output flange bolts (also one time use, don't forget the anti-rotation washers)
12. Transmission mount (because why not, it's like a $20 part)

Make sure you get some CV joint grease as well, I like to clean out the old stuff and put new stuff in when I bolt the axles up again.

I usually drop the oil pan to do the rear main seal, as the little "shelf" with the last three bolts on that edge can leak quite easily. I put RTV where the block, oil pan and RMS flange sits to prevent leaks.

 

[VW<3]

Ok, thanks for your support!

 

[HardToHandle]

I would also suggest pulling the passengers side axle flange if you haven't already

It is possible to do with both flanges installed but it can be a bit of a pain to get that flange behind the flywheel

And if you're replacing those seals anyway, you might as well remove them in the car and save a bunch of heartache. Just make sure to cover the holes with something to keep any debris out of the transmission