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Ofir Samba Member
Joined: September 26, 2005 Posts: 460 Location: Israel
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Posted: Thu Jan 14, 2016 12:24 pm Post subject: Distributor VW 043-905-205 ZB, 10deg BTDC with fuel 95? |
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Hello all,
I have bug 1966 with stock engine 1600cc, it has carb 34-3, Bosch mexican Distributor: VW 043-905-205 ZB
I set the timing per the instruction at 7.5deg BTDC, yet since I am using fuel unleded with high Octane rate at 95 (RON), can I change the timing to 10deg BTDC? or leave it as is at 7.5deg BTDC?
The car is running great, yet I want a little more power by a bit more advance to the timing, since that I am using fuel unleded with high Octane rate at 95 (RON)
Thanks
Ofir
Beetle (Puebla, Mexico) With Points Distributor
Distributor: VW 043-905-205 ZB, Bosch 0231 170 034 (Mexico)
Can Use: VW 113-905-205AL, Bosch 0231 146 101, VW 043 905 205, 0231 170 034 (German)
Notes: This is the Mexican manufactured version of the original 043 905 205 Distributor, originally used on 1974 Federal Manual Transmission Beetles. This was used on Mexican production Beetles early on before they switched to Electronic Ignition (year periods are unknown, but I believe it was sometime in the 80s). This distributor comes with a Single Vacuum Can is essentially a carbon copy of the original German made model. It uses all of the same components of the original German Distributor except the Condensor as noted below. Timing specs are the same as well and have not changed.
This is THE Distributor to use on your stock engine w/Solex 30PICT-3, H30/31PICT Series or 34PICT Series carbureted 1600 Beetle thru 1974 (75-79 w/Carb) & Type 2 1600 thru 1971. It is NOT recommended for use with the 30PICT-1 or 30PICT-2 because the vacuum signal is incorrect for the vacuum assist to work properly. This Distributor is essentially a "009" with a Vacuum Advance Assist to help prevent hesitation in all of those Stop-n-Go situations in city traffic. The Mechanical Advance takes over out on the highway to provide the most excellent Advance Curve in all sorts of engine loads. If you're running an original Dual-Vacuum Distributor on your Beetle 71-74/Type 2 1971 application(s), you will need to cap off the "Retard" Vacuum Port located on the rear of the Carburetor. Available new from a number of VW Parts Suppliers.
This distributor is similar to but should not to be confused with the "Bruck Germany" Distributor being sold by a number of outfits. In actuality, this is a Chinese knock-off of the Bosch Mexican "034" and the reliability of this distributor has not yet proven itself IMHO. Let the buyer and user beware!
Points: 01 011
Condensor: 02 054 (German model used 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: 8deg @ 1300rpm, 10deg @ 1600rpm, 15deg @ 2500rpm, 20deg @ 3000rpm, 21deg @ 3500 to 4000rpm |
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borninabus Samba R&D Dept.
Joined: May 18, 2006 Posts: 4536 Location: Arizona Highways
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Posted: Thu Jan 14, 2016 12:55 pm Post subject: Re: Distributor VW 043-905-205 ZB, 10deg BTDC with fuel 95? |
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certainly try whatever you you want.
a few degrees in either direction won't kill it.
the true way to set it though is with a strobe timing light @ 30deg (+/- 2deg) BTDC max mechanical advance, not at idle. _________________ 88 Van WBX, A/T - 13 JSW TDI 6M/T - 2012 Touareg TDI Sport |
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Randy in Maine Samba Member
Joined: August 03, 2003 Posts: 34890 Location: The Beach
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Posted: Thu Jan 14, 2016 1:13 pm Post subject: Re: Distributor VW 043-905-205 ZB, 10deg BTDC with fuel 95? |
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Your (Euro) 95 octane is our (US) octane 91.
Is there no 90 (Euro) octane available in Israel? That would be our (US) 87 octane which would be fine for a pretty stock engines. |
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Ofir Samba Member
Joined: September 26, 2005 Posts: 460 Location: Israel
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Posted: Thu Jan 14, 2016 1:38 pm Post subject: Re: Distributor VW 043-905-205 ZB, 10deg BTDC with fuel 95? |
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Randy in Maine wrote: |
Your (Euro) 95 octane is our (US) octane 91.
Is there no 90 (Euro) octane available in Israel? That would be our (US) 87 octane which would be fine for a pretty stock engines. |
Hello,
There is no 90 (Euro) octane available in Israel.
Only 95 octane unleaded, and premium 98 octane unleaded.
Before a few years we had 96 octane leaded, but no longer available here. |
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Ofir Samba Member
Joined: September 26, 2005 Posts: 460 Location: Israel
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Posted: Thu Jan 14, 2016 1:43 pm Post subject: Re: Distributor VW 043-905-205 ZB, 10deg BTDC with fuel 95? |
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borninabus wrote: |
certainly try whatever you you want.
a few degrees in either direction won't kill it.
the true way to set it though is with a strobe timing light @ 30deg (+/- 2deg) BTDC max mechanical advance, not at idle. |
I have strobe timing light, so, I'll check if the timing is at 32deg BTDC max mechanical advance, if not I'll advance it a bit more. What about 35deg BTDC max mechanical advance? since I am using high octane 95? |
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Randy in Maine Samba Member
Joined: August 03, 2003 Posts: 34890 Location: The Beach
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Posted: Thu Jan 14, 2016 5:06 pm Post subject: Re: Distributor VW 043-905-205 ZB, 10deg BTDC with fuel 95? |
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Suggestion....
Jack it up to a few degrees more than the 32º for a few miles and see how it runs.
Most people find that they actually run better and cooler at when timed at closer to 30º (vacuum hoses off ) at 3500-3800 RPMs.
Report back your findings. |
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Brian Samba Moderator
Joined: May 28, 2012 Posts: 8340 Location: Oceanside
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Posted: Thu Jan 14, 2016 7:01 pm Post subject: Re: Distributor VW 043-905-205 ZB, 10deg BTDC with fuel 95? |
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with a stock 1600 why are you running higher octane? _________________ Wash your hands
'69 Bug
'68 Baja Truck
'71 Bug
'68 Camper
Only losers litter |
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Ofir Samba Member
Joined: September 26, 2005 Posts: 460 Location: Israel
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Posted: Thu Jan 14, 2016 9:39 pm Post subject: Re: Distributor VW 043-905-205 ZB, 10deg BTDC with fuel 95? |
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Brian wrote: |
with a stock 1600 why are you running higher octane? |
This is what I have, 95 or 98, so I use 95 |
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Ofir Samba Member
Joined: September 26, 2005 Posts: 460 Location: Israel
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Posted: Mon Feb 29, 2016 5:16 am Post subject: Re: Distributor VW 043-905-205 ZB, 10deg BTDC with fuel 95? |
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Randy in Maine wrote: |
Suggestion....
Jack it up to a few degrees more than the 32º for a few miles and see how it runs.
Most people find that they actually run better and cooler at when timed at closer to 30º (vacuum hoses off ) at 3500-3800 RPMs.
Report back your findings. |
O.K. here is an update:
I checked the timing with strobe light, I set it to 10 BTDC:
I've noticed significant improvement, more power, no hesitation at all, engine sound better, in the morning it starts and won't die, the engine got warm quicker.
I'll leave it as is, 10 BTDC is perfect for me.
Thank you all. |
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