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Promexa
Samba Member
Joined: November 06, 2019
Posts: 3
Location: CDMX
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 Posted: Wed Nov 06, 2019 10:44 am Post subject: Altitude compensating carburetor |
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I tried finding diagrams or any information online, but I could not find anything on the correct hookup of the vacuum hoses for the sistema altimetrico. Perhaps you guys might be able to help me out or find the system interesting.
Its from a 1991 car from Puebla.
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Xevin 
Samba Member
Joined: January 08, 2014
Posts: 8593
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| Posted: Wed Nov 06, 2019 10:57 am Post subject: Re: Altitude compensating carburetor |
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Do those hoses so close to the pulley concern you? Perhaps it’s the picture making them look closer then they are 
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Xevin
Samba Member
Joined: January 08, 2014
Posts: 8593
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| Posted: Wed Nov 06, 2019 10:58 am Post subject: Re: Altitude compensating carburetor |
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And welcome to the Samba!
Maybe post in this thread located in sticky’s
https://www.thesamba.com/vw/forum/viewtopic.php?t=583972
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Keep on Busin'
| 67rustavenger wrote: |
| GFY's Xevin and VW_Jimbo! |
| Clatter wrote: |
| Damn that Xevin... |
| skills@eurocarsplus wrote: |
| I respect Xevin and he's a turd |
| SGKent wrote: |
| My God! Xevin and I 100% agree |
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Promexa
Samba Member
Joined: November 06, 2019
Posts: 3
Location: CDMX
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| Posted: Wed Nov 06, 2019 11:13 am Post subject: Re: Altitude compensating carburetor |
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[quote="Xevin"]Do those hoses so close to the pulley concern you? Perhaps it’s the picture making them look closer then they are
Oh, they are captured by the accelerator buffer hose. My main issue with it is the valve on the left the black one connected to the relay on the firewall. Have no idea where that goes. |
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vwoldbug
Samba Member
Joined: January 28, 2009
Posts: 1216
Location: Ohio
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| Posted: Fri Nov 08, 2019 8:17 pm Post subject: Re: Altitude compensating carburetor |
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| Is there a diagram on the inside of the rear deck lid . |
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goober
Samba Member
Joined: May 03, 2003
Posts: 1234
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| Posted: Fri Nov 08, 2019 9:41 pm Post subject: Re: Altitude compensating carburetor |
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".....or find the system interesting....."
I definitely find the carburetor interesting. It looks like it's got a vacuum operated main-jet. (They used to sell manually adjustable main-jets years ago and I regret not picking up a few.)
I hope someone out there can give you some insight and information. |
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AlmostHeavenWV_VW
Samba Member
Joined: October 12, 2017
Posts: 1968
Location: WV
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| Posted: Sat Nov 09, 2019 8:19 am Post subject: Re: Altitude compensating carburetor |
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From the mexi-beetle forum:
https://www.thesamba.com/vw/forum/viewtopic.php?p=...es#8750806
| hopkin wrote: |
| Willard001 wrote: |
Hi everyone, I am still on the hunt for a mexican beetle, and came across this 1990 model, but I don't recognise the lime green plastic ball fitted on the left side of the engine compartment. The engine is a 1600 and the car was built in 1990. Can anyone help please? |
Don't see too many model year 1990 Beetles. It a vacuum reservoir (#2):
A closer look at one:
AFAIK it does not fit on the ACD engines. |
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1973 Standard Beetle
1600DP AK case
Solex 34PICT3 Carb
Bosch DVDA 205AJ Distributor |
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Promexa
Samba Member
Joined: November 06, 2019
Posts: 3
Location: CDMX
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| Posted: Sun Nov 10, 2019 8:54 pm Post subject: Re: Altitude compensating carburetor |
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Thank you for the link to the correct post.
I am so perplexed now as I figured that valve had the cap on it added at some point after a hose disintegrated on the solenoid (number 7).
Looks like I am missing a non return valve on the system as well. This may lead to lost vacuum. |
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