Weber 45 DCOE jetting for Renault wedge head (Hermes)

[TonyWa28]

The carb setup that came out of my Hermes DCOE 45....with choke size this time...

Main 145
Emulsion Tube F8
Air Correction 170
Idle Jet 50 F8
Pump 45
Chokes 35

  I reread what I wrote above concerning my "herd"...  I forgot to say these cars came and left over a period of 47 years, not all at once!!   orig quote "@BDA = sad to say that I've thinned the herd down to this group.  Formerly owned a couple of T/C Europas, an Elise, various MGs,, 911, Cayman and a Datsun 2000 (should have kept that one).   The Elan and Bugeye have been with me for many, many years.....  Its been, and still is, a great hobby!!  I suspect with a screen name of BDA that you have a "colorful history" with cars as well.  Glad to be a new member!"

[Nockenwelle]

Thanks a lot, highly appreciated! What type of Weber carburettor is it exactly? Mine is a 45 DCOE 13.

[dakazman]

Tonywa28 , noel

 

from Rockledge Florida  . Good to hear another lotus is off 95.
Dakazman

[jbcollier]

Just for the record, here are the haynes recommendations:

Specs for Lotus Europa (Renault Engine) are:

B:45DCOE13
C:1
D:34
E:3.5
F:150
G:F2
H:180
I:0.45 F8
J:0.40
K:0.50
L:2.25

Key (Europa Rnault engine): B:Carb type. C:# of carbs. D:Choke size. E:Auxiliary Venturi. F:Main jet. G:Emulsion Tube. H:Air corrector jet. I:Idle Jet. K:Accelerator pump inlet valve with exhaust orifice. L:Needle valve.

[TonyWa28]

@Dakazman - Glad to be on the board, been a while since I was the "new" guy at anything.  What a shame we both live in FL where you have to work hard to seek out curved roads....

[TonyWa28]

Sorry for the slow response - My Hermes uses a 45DCOE 9.

tonywa

[jbcollier]

The numbers after the carb size and type designate specific applications.  There MAY only be jetting/venturi selection differences between two carbs of the same size and type but with different suffix numbers.  That said different number suffixes may also mean there are different progression circuit drillings (more or fewer holes or size variation).

Custom fitting a Weber/Dell carb means that any jetting is merely a base-line.  You will almost certainly need to tweak it to dial it in for your engine/local climate.  This used to be a black art, often unsuccessfully performed.  Nowadays A/F gauges and wide-band O2 sensors make it much easier.