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  View original topic: 1974 Super beetle timing mark
oldndragon Sun Feb 24, 2008 8:09 am

Well, I've read all the threads regarding this and they don't fit mine. I have only one( 1) V-notch on the pulley ring closest to the engine at TDC. There is NO dimple on the other side. I static timed it to that notch and it ran lousy, flat spotted, no power, etc. I than hook up a timing light and while the engine was running turned it so the notch went passed the case center to the left.. advanced? It runs better now but Im only guessing that I have it timed right. How do I know for sure?

Also: Now that I have it running OK I ad :roll: just the carb but it does not want to stay at the 850 RPM all the time. It seems to most of the time but sometimes it will just run faster like when I stop at a light it sounds like the RPMs run up? I checked for vacuum leak NONE I did a complete tune up and clean the idle jet, checked the electro jet. Maybe choke?

Thanks, Oldndragon :?:

mnussbau Sun Feb 24, 2008 8:55 am

What kind of distributor are you running? Does it have 1 or 2 vacuum lines to it, or none at all?

oldndragon Sun Feb 24, 2008 9:30 am

It runs a stock distributer one vacuum line. I timed it with this vacuum line sconnected.
The RPMs run up an down when Im trying to time it....

Randy in Maine Sun Feb 24, 2008 12:15 pm

I assume that this is your distributor, but you need to check the number embossed on the side.... from www.oldvolkshome.com

Beetle 1974 * 1600 Federal Manual Trans

Distributor: VW 043-905-205, Bosch 0231 170 034
Can Use: VW 113-905-205AL, Bosch 0231 146 101, VW 043 905 205 ZB (Mexico) (See Note Below)
Points: 01 011
Condensor: 02 074
Rotor: 04 033
Dust Cover: 039-905-241, Bosch 1230 500 139 > 1230 500 147
Cap: 03 010
Spark Plug: W8AC
Timing Set At:: 7.5deg BTDC @ 800-950rpm w/strobe and w/single vacuum hose disconnected and plugged
Advance/Retard Range: Vacuum: 8-12deg Adv; Centrifugal: 7-12deg @ 1600rpm, 20-25deg @ 3800rpm
NOTE: Volkswagen (with Bosch's help) now makes this distributor in Mexico and is available brand new and ready to install. Please click this link:Beetle (Puebla, Mexico) With Points Distributor to view the specs.

And you have been here?

http://www.thesamba.com/vw/forum/viewtopic.php?t=251672

oldndragon Sun Feb 24, 2008 1:41 pm

I found this #: 0231170036 VW on the side of the distributor. Also the site you sent me to I have looked at, I guess I will have to make my own mark at 7.5 degrees BTDC. When your timing with a strobe is timing advance counterclockwise as your watching your mark?

Kelley Sun Feb 24, 2008 1:56 pm

oldndragon wrote: I found this #: 0231170036 VW on the side of the distributor.

That distributor is for a Beetle 1974 * 1600 Federal Auto-Stick Trans

Distributor: VW 043-905-205A, Bosch 0231 170 036
Can Use:
Points: 01 011
Condensor: 02 074
Rotor: 04 033
Dust Cover: 039-905-241, Bosch 1230 500 139 > 1230 500 147
Cap: 03 010
Distributor Cap Clip: 034-905-265, Bosch 1231 251 033
Parts Kit (Shims, Washers & Hardware): 059-998-211, Bosch 1237 010 007
Coil: 00 015 (Blue Coil: 00 012)
Vacuum Can: 07 059
Ignition Wires: 09 001
Spark Plug: W8AC
Timing Set At:: 7.5deg BTDC @ 800-950rpm w/ strobe and w/single vacuum hose disconnected and plugged
Advance/Retard Range: Vacuum: 8-12deg Adv; Centrifugal: 13-15deg @ 2300rpm, 22-25deg @ 3800rpm

Specs are the same as Randy's post above. Is your '74 Super an Automatic stick shift?

oldndragon Sun Feb 24, 2008 4:36 pm

No its not. Mine is a 4 speed. Maybe it was changed at some point, but the timing specs look the same. Anyway I still need help as far as my timing mark goes. I dont know where to set my timing. If I set it the notch right in the middle of the case halves it runs lousy. If I turn the mark to the left with the engine running and a strobe light it runs better but it doent start quick and I dont know where I am. If I go right past the case halves it wont run. What is the single notch? TDC? No dimple either.
oldndragon

mnussbau Sun Feb 24, 2008 4:57 pm

It depends what motor the pulley originally went with. Assuming it's the original for your 74 super, which it probably is NOT, it would represent 7.5° BTDC. The original pulley would also have the dimple at TDC, or 0°.

You'll need to determine where TDC is on your own. See the following post, there's a suggestion from glutamodo about 3/4 down the page on how to do this. Then mark your pulley so you'll have it. If you turn the pulley so your rotor is pointing to the mark on the edge of the distributor body you'll be close to TDC on cylinder #1.
http://www.thesamba.com/vw/forum/viewtopic.php?t=251672&highlight=tdc



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