Gearbox inspection timing hole bung - part no and how to replace

Any tips on how to undo it
&
What the part no is?
PB mk2 8v

 

They screw out in theory, but they often seize in place and end up coming out in pieces
Why do you want to remove it?

 

That looks like an empty hole in your picture?
Mine simply has some sort of stopper which pulls out. It may have used to screw in or out but not any more. It may not be original of course

 

Yes Phil, a pop out plastic cap goes into the centre of the screwed in piece.

 

Aha, thank you. So that does beg the question already asked, why does Mr Tak want to remove the screwed in piece?

 

This is what the setup should look like.


But as Tristan says, chances are it will crumble when you try to remove it and fall into the bell housing.
If you want to see if it will budge, you could find a bolt with the same size head on it as the plug, put a nut on the bolt then and try and screw it out.

 

Thanks
Bit of a long story, but we are doing a cambelt job, and didn't mark up the intermediate pulley as we thought it only drove the oil pump, not the dizzy cap. I wanted to remove the intermediate pulley to sort out the metal cambelt cover - to derust it.
Looking at rubjonny's digifant tuning guide it appears we can help time the engine through this flywheel hole. Hence why we were keen to remove it.
Then we can get the engine's timing all good.

However perhaps we can time it without looking through the hole?

I know the rotor arm should point to a little mark on the dizzy body when cam n crank pulleys are at the OT mark/arrow

 

Think I worked it out on etka - part 6 in this diag:

 

Where-as this I think is the 16v gearbox? which has a difference plug...part 10?
showing my lack of knowledge now i have no idea what gearbox code a stock PB engine or any golf for that matter:

 

VW MK1 MK2 Golf Genuine Gearbox Inspection Plug & Cap 020301129- BRAND NEW!! | eBay

Over £20 for two bits of plasticy/rubber?

 

Try the Chinese one...https://www.ebay.co.uk/itm/Gearbox-...:MK+II&hash=item289d4354fe:g:aiwAAOSw0X5fYKhz

 

Any one know the import duty now-a-days?

 

You won't pay anything on £3.60. for stuff from china it's £13 before you start paying duty or fees.

 

Back to the matter in hand, you should be able to see the timing mark without removing the large part, through the hole in the middle of it.

 

If they even put the right price, a load of stuff I've got from AliExpress is just marked as costing pennies, not the actual price

 

Brilliant, that gives us another timing mark then to coss-check.

 

Just to finish this thread.
Does anyone know the dimension of allen key needed to remove this plug?

 

27mm. Literally just measured one I have in the shed, with a vernier calipers.