Welcome to the Australian Ford Forums forum.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. By joining our free community you will have access to post topics, communicate privately with other members, respond to polls, upload content and access many other special features without post based advertising banners. Registration is simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.

Please Note: All new registrations go through a manual approval queue to keep spammers out. This is checked twice each day so there will be a delay before your registration is activated.

Go Back   Australian Ford Forums > Ford Australia Vehicles > Small and Mid Sized Cars > Escort, Cortina, Sierra and Capri

Reply
 
Thread Tools Display Modes
Old 08-07-2021, 05:25 PM   #1
Rallye Sport
RS The Faster Fords
 
Rallye Sport's Avatar
 
Join Date: Feb 2014
Location: Westralia
Posts: 1,694
Default Weber Tuning and Repair

With most small Fords using Weber carburetors I thought it might be useful to start a thread to gather some information resources in relation to these carbs.

Your contribution and experiences are welcome.

Tuning and repair of Webers is a skilled but dying art, however it is within the capabilities of the DIY mechanic and the results can be quite rewarding.

Standard disclaimer though, do your research, make up your own mind and consult a professional if you can't apply either of these steps.
__________________
Escort RS2000 Restored factory a/c and alloys.
TD Cortina Unrestored 35 000km 6cyl manual.
Mk1 GT Cortina Project.
FG XR50 Daily.
Rallye Sport is offline   Reply With Quote Multi-Quote with this Post
Old 08-07-2021, 05:48 PM   #2
Rallye Sport
RS The Faster Fords
 
Rallye Sport's Avatar
 
Join Date: Feb 2014
Location: Westralia
Posts: 1,694
Default Re: Weber Tuning and Repair

Weber types

Firstly a couple of definitions.

Venturi- opening for air inlet.

Dual stage- Venturi's opening at different times in the throttle phase.

Single stage- Venturi's opening in unison.

Downdraught- Air drawn in vertically.

Sidedraught- Air drawn in horizontally.

Weber DCD

Type- Dual stage Downdraught
Venturi size- 28/36
Found on- Mk1 Cortina GT 'Kent' 1500cc



Weber DGV

Type- Dual stage Downdraught
Venturi size- 32/36
Found on- Mk2 Cortina GT, Mk2 Escort 'Kent' 1600cc



Weber DGAV

Type- Dual stage Downdraught
Venturi size- 32/36
Found on- Cortina Escort 'Pinto' 2000cc



Weber DGAS

Type- Single stage Downdraught
Venturi size- 38/38
Found on- Capri 'Essex' 3000cc *Will also fit DGAV manifold



Weber IDF

Type- Single stage Downdraught
Venturi size- 44/44
Found on- Euro spec Mk2 Escort Group 1 option



Weber DCOE

Type- Single stage Sidedraught
Venturi size- 40/40, 45/45
Found on- Aftermarket fittment

__________________
Escort RS2000 Restored factory a/c and alloys.
TD Cortina Unrestored 35 000km 6cyl manual.
Mk1 GT Cortina Project.
FG XR50 Daily.
Rallye Sport is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 09-07-2021, 05:41 PM   #3
simon varley
FF.Com.Au Hardcore
 
Join Date: Nov 2009
Posts: 2,858
Technical Contributor: For members who share their technical expertise. - Issue reason: Bringing sanity to the Everest threads. 
Default Re: Weber Tuning and Repair

I rebuilt my DFM service kits are pretty cheap
simon varley is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 31-08-2021, 08:52 PM   #4
oldel
FF.Com.Au Hardcore
 
Join Date: Nov 2009
Location: Perth
Posts: 1,669
Default Re: Weber Tuning and Repair

Love the weber carb. I usually used IDA and IDF on rotaries but on a spare mazda 808 with a 1600 piston engine I played around with fitting a 32/36 dgv.

Webers are simple to set up (I shudder at holleys and other similar 4 barrels used on V8s or SUs and the like -can't know everything, pick one). The simple brass idle, air, fuel jets and emulsion tubes of webers and their circuits I learnt quick enough.

I did muck around a bit on the 4 barrels rotaries used (hitachi and nikki), but too hard to mod - get a weber instead.

Here's something I found on the net a while back
http://240260280.com/Tech/Carbs/Webe...ing%201976.pdf

https://www.lainefamily.com/images/W...ningManual.pdf


As usual I found it linked from a rotary site - old rotors remain popular so mostly their sites stay up, but carbs and old 4cyl websites are a dying breed, so if looking for weber info search for mazda rotary websites (E: of course they'e not going to have much on dvg or dcoe as they're mainly IDA, but often can point you to general parts and info weber sources

Last edited by oldel; 31-08-2021 at 09:04 PM.
oldel is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 01-09-2021, 09:04 AM   #5
chappy60
Regular Member
 
Join Date: Apr 2014
Posts: 62
Default Re: Weber Tuning and Repair

the Mk GT cortina had a 32dfm carby
the essex started with 40 down draft
later went to a 38. Haynes put out a
manual for the weber carbs
chappy60 is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 01-09-2021, 09:55 AM   #6
Capriman
formerly ford3000gt
 
Capriman's Avatar
 
Join Date: Feb 2009
Location: Buderim, Qld
Posts: 110
Default Re: Weber Tuning and Repair

A small correction, the DFAV 40 was used on all Australian assembled Capri GT V6 3-litre models, through to November, 1972, when assembly ceased. The DGAS was used on UK built V6 Capri's from late 1971, but not in Australia, except on the 50 fully imported RS3100s.
__________________
Current ride:
'83 Mk.3 Capri, 2.8i, 5-spd
Capriman is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 03-09-2021, 07:46 AM   #7
chappy60
Regular Member
 
Join Date: Apr 2014
Posts: 62
Default Re: Weber Tuning and Repair

Both my cars are uk built the crayford corsair has the DFAV
and my Scimitar has the DGAS out the 2 i do prefer the 38
but in saying that one is oval port and the other is a d port and
they are built differently spec wise and they are like chalk and
cheese on how they perform
chappy60 is offline   Reply With Quote Multi-Quote with this Post
Old 17-09-2021, 10:26 PM   #8
Linz
*SILVER SERVICE PILOT*
Donating Member1
 
Join Date: Jul 2006
Location: REDLAND BAY QLD
Posts: 17,048
Tech Writer: Recognition for the technical writers of AFF - Issue reason: For his technical submissions. Technical Contributor: For members who share their technical expertise. - Issue reason: Always willing to help out with good, solid advice. 
Default Re: Weber Tuning and Repair

Very familiar with the Webers, did a few conversions on unsuspecting cars over the years
Most notable was a DGAV 32/36 on a 1980 Subaru Leone 1600, replaced the asthmatic Nikki carb...needed an adaptor plate to fit, had it dyno tuned and distributor recurved, geez did that wake the Suby up.
Used to blow away 253 HQ's with ease
__________________
BUILD THREAD


https://www.fordforums.com.au/showth...71#post6891271



2006 Lightning Strike BF Fairlane Ghia...HIS

2024 Titan Grey Hyundai Tucson Highlander...HERS
Linz is offline   Reply With Quote Multi-Quote with this Post
Reply


Forum Jump


All times are GMT +11. The time now is 11:11 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Other than what is legally copyrighted by the respective owners, this site is copyright www.fordforums.com.au
Positive SSL