36 idf jetting advice

[speedwell]

hi guys 
the 1600 with twin 36 idf is the car , but still have some trouble to start this one correctly  may be the problem was to be resolved today i've changed my starter to another one and it look that the car start "easily" , that's better that with the old one , i explain , with the old one I had to recover in there several times before the car starts and the battery was almost everytime unloaded
the car run "well"  but  need some helping for jetting my carbs  ,

here's what i've into those one

36 idf weber

venturis :32mm  ..........may be 28 mm will be better
Emulsion tube : F9
Main jet : 1.22
Air corrector : 1.75
and in the starter jet : 47

so in the weber book here's what they said for n 1600cc with dual 40idf

venturis : 28 mm
main gas(i suppose it's jet) : 1.30
main A/C(i suppose it's air corrector) : 2.00
Emulsion tube  : F11
idle (it's starterjet ??) : 55
pump jet : 50


can someone give may be teh best combination for jetting my carbs

nicolas will may be explain some trouble

thx guys for your help

fabs

[TexasTom]

Fabs,

What cam are you running? Stock heads?
Is this truly a 1600?
What do want to rev it to?
 
Assuming the above is true and a 5000 redline, the 28s are the way to go.
Try starting off with 120M & 170A, 55 idles should be OK.
Should be a good place to start ...
Take care,
TxT

[Christoph]

hi fabs,
i run a 1600, w110, 35/32valves, 36 idf with:

venturies: 28mm
Emulsion tube: F11
Air corrector: 180
idle: 50
Mainjet: 125

christoph

[speedwell]

Tom ,
i've buy that engine in 96 with 0 miles it's a standart exchange 

so the heads original sizeand cam is original too "normally"

5000rpm , in first it's rev to 6000 rpm may be too high  ... , but the engine as "potential" , he smoke black when he's cold and when you goes into rpm , and don't take his rpm correctly and sometimes he's popping into the carbs it look like cylinder 2 , i've watched my spark plugs and 1,3,4 are black and 2 is grey so i've turned the screw an half tour in anti clokwize  for ciminder 2 ,and yesterday very strange things who never happening before , i was in 3 gear and i've put back my 2nd  without accelerating and some popping into the exhaust and big black smoke came outside things he never do before  ,and the car stopped, flooded by the fuel

today it started without any issue with the new starter  but i will try tomorrow to see if the starter was the problem

thx TOM i will try that and see how the engine works
fabs 

[speedwell]

hi fabs,
i run a 1600, w110, 35/32valves, 36 idf with:

venturies: 28mm
Emulsion tube: F11
Air corrector: 180
idle: 50
Mainjet: 125

christoph

and how does it runs

[Christoph]

works fine, had no problems with it.

cheers, christoph

[TexasTom]

Fabs,
What's your timing setting, especially TOTAL degrees at 3500+?
Actually, the 55s may be too big, try 45s or 50s.

Christoph's 110 cam will let him rev much stronger than you so his 180As are better for him, I think.

If you have them, try the 45 or 50 idles ... 55 is too much.
Enjoy the day,
Tom

[speedwell]

Fabs,
What's your timing setting, especially TOTAL degrees at 3500+?

you're talking about advance on the distributor don't know it's a bosch 009 and i've try my 010 and it was with this one , that the car smoked black and popping in the exhaust

nicolas could help me for your queston 

fabs

[speedwell]

tom what emulsion tube can i use F11 or F9
thx

i've put 1.15 for main jet don't have 1.20 and the closer i've is  1.22 so which one
and i've put 45 for idles

now the car start better with the new starter but there is no boost , engine sounds well but no power???  question if i've a valve spring broken the car can't start

[nicolas]

hey,

don't go for the 115's with the 32 vents. not enough fuel for sure. if you have 28 vents that is good, but now it will not work. stay with the 122's and lean out the air from 175 to 190 again. idles will be OK with something between 50 and 55, your 47 are OK as well.

if someone can help Fabs out with some 28 vents i think i will be set to drive the car and not rev above 5500 anymore 

[speedwell]

nico air correction are still the same 1.75 tomorrow i will change the idle for the 47 and the main jet for 122 , i've 135 ,  are those too big

i've just reading the procedure for trouble   

have you heard the message i left you on your phone

thx
fabs

[nicolas]

nico air correction are still the same 1.75 tomorrow i will change the idle for the 47 and the main jet for 122 , i've 135 ,  are those too big

i've just reading the procedure for trouble   

have you heard the message i left you on your phone

thx
fabs

yes i heard it and just a few bits and bops to sort out and you are good to go.

[speedwell]

but it's strange now the car have the same trouble as the sprinkit , lost of power  very strange  and for the distributor have you understand what i've said


nico it's possible to have A/c :170  , M/j ; 120 , and idle  50 from the shop no so far from my house i order them

[speedwell]

tom , i've came back to my first set up and the engine runs better , he found the "power" again , first set up was  M/J 1.35 , A/C 1.90 , idle  : 47 , but there were still small holes in the acceleration so i've put 1.75 for air correction , and works better no hole acceleration now  , that set up works with the 32 mm venturis but i will search after a 28mm set

fabs

[nicolas]

we had some phonecall this weekend over the jetting this weekend and with what we have this is how it runs for now. like fabs said 28 vents would suit it better.

but he also had a problem with the accelorator pump dribbling after the engine is turned off and he wanted to see if this can be solved. it runs a DDS centerlinkage and if i can have a wild guess at it this is what causes the fuel to drip on the butterflies. is there a cure? and if it isn't the linkage what else could cause this problem.

[TexasTom]

tom , i've came back to my first set up and the engine runs better , he found the "power" again , first set up was  M/J 1.35 , A/C 1.90 , idle  : 47 , but there were still small holes in the acceleration so i've put 1.75 for air correction , and works better no hole acceleration now  , that set up works with the 32 mm venturis but i will search after a 28mm set

fabs

Excellent news Fabian!
Yes the 135s would be 'textbook' for the 32 vents. The 28 vents I think would suit your combination a little better and restrict high rpm, but if it runs ... IT RUNS! LOL
Did you ever find where the timing is set?
I had the dribbling problems years ago with a pair of 40 DCNFs ... make sure the carbs are definitely closing COMPLETELY, when cold and when hot.
Good news!
TxT

[speedwell]

thx tom  , dribbling was only when engine is "hot", so it's a linkage problem???

and you think that the 135 will be good with the 28 mm  they aren't to big??? engine is rich now with the 32 mm and 135m/j but runs better than the 122

the best thing is testing different combo when i will found some 28mm
thx for your advice too

fabs

[TexasTom]

Fabs,
No, the 135s will be too big for the 28 vents ... I believe the 120 or 125s will be better.

As for the dribbling, yes check your linkage when @ running temperature ... I set up push/pull linkages when they're warm. Maybe that will help?

Take care Fabs,
TxT

[speedwell]

thx tom 

[speedwell]

got my csp 28 mm venturis today and some jets , i've swap the 32 for the 28 and put the news jets and the car runs better , still have a small hole at the acceleration but very small one  , so will try to put 190 a/c tomorrow now , my jetting is m/j:120   a/c:175   ,idle:50