Could anybody help me with correct timing for 65 1200

[joosep]

Looks similar distributor: http://images.thesamba.com/vw/gallery/pix/252514.jpg

carb is solex 28 pict 1
I Tried 7,5 degree without vacuum @ idle.....doesnt look right Is it correct that mark on the case is between 2 sides of the case?

[Clonebug]

The mark you use is the case split.

7.5 degrees BTDC sounds correct to me since you have a vac advance distributor but I haven't timed a 1200 myself.

[Slow 1200]

you need to find out the distributor part number

[joosep]

I found 2numbers:
0 231137005
111905205 N

[Slow 1200]

I think you adjust that one to 10º BTDC

[Marc]

I think you adjust that one to 10º BTDC

That's correct.
Next challenge will be to find out what pulley markings you have. If there are two V-notches very close together (<¼" apart), the left one is 7.5° and the right one is 10° BTDC.
These vacuum-only distributors are infamous for developing excessive advance at idle so it's vitally important that you set the timing with the vacuum hose disconnected if you're using a strobe. "Static" timing with the engine off will (theoretically) yield the same result.
With the engine at a normal warm idle (~875 RPM) the timing/idle speed should not change when the hose is connected/disconnected.

[joosep]

So 10 should be OK.

with 7.5 Idle speed is about 200-300RPM different with connected / not connected hose. I noticed that when engine is not workind the spring is not pulling it to total endpoint....but I could do that with my finger. Will check tomorrow, maybe there is some problem in distributor.

Thanks a-lot

[Marc]

The anchor pin for the return spring is eccentric, so it can sometimes be rotated to take up the slack in the spring. I've had good luck with simply bending the pin over, too - but you stand a chance of breaking it so that's a last-resort measure. If your timing is staying put at idle, it's not too critical that you do anything...yet.
If there is no loop seal in the vacuum line, the vacuum canister will collect fuel which impedes its proper action. You need to remove it (or the whole distributor) and invert to drain.