Adjusting the valves, quick and short questions., NOW I need help on timing !!!! PLEASE Options

[913B]

I am checking the valves because they seem noisy and also to track down an erratic idle
I have read the rocking method but I would like to stick with the dizzy and TDC method please.

I read cyl #1 & #3 has same TDC and #2 & #4 has same TDC

Question 1 – Setting TDC on the fan notch does it have to be at “0” or will the notch for “27BTDC” work too

When I find TDC for #1 on fan notch and dizzy rotor is pointing to #1 tower of dizzy cap

Question 2 - Can I adjust all the valves for #1 and #3 cyl ??
Then rotating the motor to #2 TDC on fan notch and dizzy is pointing to #2 tower

Question 3. Can I adjust all the valves for #2 and #4 cyl ??

Question 4. Is it wise to replace the cork valve cover and not risk a leak.
The gasket is pretty new though and low mileage since I last had them off.
I am thinking of purchasing the 914rubber re-usable ones. Any recommendation’s

Thanks everyone !
Ted

[hedfurst]

1. All 4 cylinder ACVW motors have the same basic cam-shaft design, 4 cam lobes, each set doing double duty for opposing cylinders.
2. Intake-Compression-Power-Exhaust. The 4 strokes of all 4 cycle engines.
3. At the end of the exhaust-stroke the exhaust valve closes as the intake valve starts to open. At this point the cam-lifters for the OPPOSING cylinder are situated on the back of the cam lobes and can be safely adjusted.

I pull both valve covers, jack up one rear wheel and with the car in 4th gear turn over the motor while watching the valve-train. When I identify an exhaust valve closing I focus on that cylinder and continue turning the motor until it's intake valve STARTS opening. Then I adjust the valve clearance on the OPPOSING cylinder.
For example- if I'm watching the #1 cylinder for the Exh-closure/Int-opening I adjust the #3 cylinder. And continue working my way around the engine.
It's all done from beneath the car so you don't have to look at timing marks or the dizzy's position. It's a simple shortcut/solution to something that people tend to make complicated.

I've been doing it this way for 40 years without any problems! I learned it from my Dad who figured it out at least 20 years earlier!
"VW before VW was cool"
Fred Hurst