Der Kupplungswechsel und andere Überraschungen ..... | Posts 16+

dieter wrote:

... Which car was it?

G4 AXR... I haven't seen one either.

lappen wrote:

Huh? What is that? Normally, every engine that is mounted to a manual transmission has a needle bearing in the crankshaft.

Okay, I just checked... There's not a single needle bearing to be found anywhere.

Funny, funny... I guess I'll have to get a new pair of glasses. The 028 engines definitely had that. Whether it was VW or Audi...

So far, I haven't come across any transverse engines.
I can't comment on the longitudinal engines. However, in those engines, acceleration forces act in different directions, and a needle bearing might be necessary to prevent the transmission shaft from tilting. This is not required for the transverse engine.

That might be true. I haven't really taken a close look at a 'Quereingebauten' yet.

Hello,

I'm currently in the process of replacing the clutch on my Golf as well.
I also removed the flywheel to replace the oil seal flange on the crankshaft. There is no needle bearing there.
When you remove the tight-fitting flange, you can see the bearing supports of the compressor.
Bei mir hat der Wellendichtring der KW etwas Öl raus gelassen. Der Wechsel war also nötig. VW nimmt für den Flansch 97 Euro!!! AbWhatever.
I also replaced the cable actuation mechanism on the transmission. Everything was worn out and had a lot of play.
I also replaced the rear left engine mount. The mounting plate connected to the transmission console had detached from the mount. The mount costs 46 euros.
The clutch disc was also glazed, and the pressure plate showed clear signs of overheating. In some areas, it had turned blue.
I envy everyone here who managed to remove and install the gearbox by themselves.
Despite having a pit in the garage, I wasn't able to handle the transmission repair on my own.
I haven't quite got it back yet. The reinforcement isn't arriving until tomorrow evening, but I'm curious to see what happens then.
The repair manual mentions "draining the transmission." What position do you need to put the engine in, pushing or pulling, to easily "drain" the transmission?
We had quite a few problems during the disassembly. The gearbox had jammed at one point and then wouldn't move forward or backward.
Perhaps someone has a tip that could make the installation a little easier.

golf3schrauber wrote:

... I envy everyone here who managed to remove and install the gearbox by themselves. ... Maybe someone has a tip that could make the installation a little easier.

Just don't believe that I'm Goliath and that I can just randomly remove a gearbox like that.
I also used some tools. My pit cover consists of planks, and one of them is broken lengthwise in the middle. I placed these two pieces under the transmission. In the middle, there's a gap through which I inserted a telescopic rod. Using this rod, I pushed the transmission upwards, securing it repeatedly with small wooden blocks to prevent it from falling. When the transmission shaft reached the height of the clutch, I simply pushed the transmission over the clutch. After a short clatter, the job was done.

With my Jetta1, I always did it in a similar way. However, there was less space there, and I used a scissor jack. But the transmission was also significantly smaller and lighter.

So, the gearbox has been reinstalled.
Unfortunately, I wasn't able to take a picture of the needle bearing because I didn't have a camera with me.
"In any case, only a few small pieces of the plastic ball cage remained. Some of the rolling elements were partially flattened on one side. We had already encountered these individual parts when removing the clutch."
We expanded the warehouse as follows (unfortunately, the part about the grease didn't work).
First, remove all parts of the bearing (except for the outer race).
We slightly sanded the edges of the 17mm nut and sanded two opposite keying surfaces down to a maximum of 15.7mm. Then, we inserted the nut into the bearing from the front and tilted it. Due to the oval shape, it can no longer come out. Simply screw in a suitable screw. If it's in the recessed hole, turn it further with a key and watch as the bearing slowly comes out.
The action took 15 minutes to complete, including the time spent preparing the tools.


The transmission in the B4 is already very heavy. When we were installing it, we even had three people helping.

Okay, and so easy! The needle bearings I know and which are supposedly original parts don't have any plastic components. Maybe they were replaced with something else that isn't an original part. But ultimately, it doesn't really matter.

However, the cage of the new one I bought (the original) was also made of plastic.

Hello,

Since yesterday, my Golf is running again, with a new clutch, new transmission oil, new engine mounts, and a new shift actuator on the transmission.
The gearbox surprisingly went back in very easily, even when doing it alone, thanks to the use of a pulley system.

I'm thrilled with the function. The pedal is so light, and the clutch now has a clear engagement point.
The shifting mechanism is crisp again. It wasn't clicking before, but it was very vague. Now it shifts precisely again.
All in all, a complete success.

@golf3schrauber,

"I heard that the seal on the engine side of the sealing flange isn't easy to replace. Is a new flange really necessary? And which clutch are you using now? I have the same engine with 150,000 km and still have the original clutch. I haven't noticed any wear yet."

Best regards, Robert.

Hello,

"You can't get the sealing ring out of the aluminum frame. I think the only option is to buy the entire thing. I wouldn't try to fix it myself."

The clutch was the first one!

Hi.

You can replace the sealing ring; I unscrew the flange, knock out the old seal, and then press the new one in.

Only one gasket, costing around 2 euros, is needed, and I buy the shaft seals for 5 euros each.

I'm not supporting the exploitative practices of companies like VW & Co.

Best regards, Rüdi.

Hello,

Where can I buy the sealing ring individually? At VW?

Hi,

"I usually used to find radial shaft seals where I bought ball bearings, like at a local FAG or *** dealer. Interestingly, I can't find anything about *** anymore; maybe the company has a different name now."

Best regards, Rainer.