View original topic: 71 Ghia Timing for a 113905205AJ Distrubutor and Valve adjustmen
restocal63 Sat May 30, 2020 7:22 am

I am doing a basic service on a 71 Ghia 1600 Twin Port AE engine, manual transmission, which looks to be original to the car.

The car has a Solex 34 Pict-3 carb and has a VW 326 stamp on the flange of the carb.

Was checking the distributor and ignition points I have noted the following.

Distributor is a 113905205AJ but now has a SVDA can.

From what it have checked the car is supposed to have a DVDA can.

The car seems to be running fine, but what is the correct timing?

5 deg ATDC or 7.5 deg BTDC?

Valves need to be set at 0.1mm as per the manual or 0.15mm?

Thanks in advance for your help and input.

Paul70Ghia Sat May 30, 2020 11:24 am

Valves should be 0.15mm.
If you’ve got a SVDA distributor it’s 7.5btdc. The 5atdc is only for DVDA distributors which the AE engines originally had - which might also mean your crank timing mark is 5atdc (mine only has a single mark) so check and make sure you know where tdc is before adjusting.

wcfvw69 Sat May 30, 2020 4:02 pm

If your VW is new to you, verify the pulley timing marks by putting the engine on TDC #1. Then remove that spark plug and verify the piston is at the top of it's travel. Pop the valve cover off and make sure both valves are closed on #1 too. Then look at the pulley and see what mark lines up at TDC.

The other poster is correct that an SVDA vac can times at 7.5° BTDC but you should still rev the engine until the distributor reaches full mechanical advance and set the all in timing to 28-30° BTDC and let the idle timing fall where it may.

restocal63 Sun May 31, 2020 3:50 am

Many thanks for your help.

Can confirm that the timing is set at 7.5 deg BTDC.

Also checked with strobe light and the mechanical advance degrees are achieved.

Happy motoring and stay safe.

heimlich Sun May 31, 2020 12:09 pm

7.5 BTDC should get you close to where you need. Keep in mind this is with the hose disconnected.

There's no problem running that distributor with a single vacuum. That same distributor was released in Europe as a SVDA with the number 113 905 205 AL which has a very nice advance curve that is very close to a 034.

restocal63 Mon Jun 01, 2020 9:14 pm

Many thanks for your input to all.

The wealth of knowledge you have and willingness to help others is highly appreciated.

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