Weber 32/36 dgev l16 jetting

[hoopty]

I purchased a weber last week and have researched jetting for l16s and found very broad data. I got my carb in the mail yesterday and tore it apart. It came with 140/140 fuel 170/160 air 60/50 idle I don't know what pilot(unmarked). I want to go leaner from what I have read but am not sure how much leaner to go. I read the dimequarterly article and the numbers seemed super low. It called for 130-140/85-100 for the fuel 150-170/105-125 for the are 60-70/40-50 idle and a 45 pilot. I then read baseline settings for a l series to be 140/135 fuel 165/160 air 55/50 idle and a 50 pilot. I'm in need of some input, I have a bone stock motor to the best of my knowledge. I really don't want to guess and buy jets at 6-8$ a peice and have crappy jetting. Thanks guys.

[RCaraballo'74 620]

I am getting one of these tomorrow for my '74 620. How did it end up working? let me know. Any tips?

 

-Ruben

[ggzilla]

The jetting depends first on the venturis. So confirm which ones you have.

 

Here is Redline Weber's baseline jetting for a stock L16 engine:

Main Venturi: 26/27

Aux Venturi: 3.5/3.5

Main Jet: 140/135

Em Tube: F50/F6

Air Corr Jet: 165/160

Idle Jet: 55/50

Pump Jet: 50

Needle Valve: 2.00

[hoopty]

Tits man! I love it!

 

I was all worried about jetting and what not after reading a few peoples threads but i slapped it on and tuned it in about a hour and 30 minutes. Its spot on jetting wise, could be a hair rich but i'm not touching it for a bit. As for the mileage I have no clue, my fuel gauge doesn't work and I haven't been driving it a whole lot lately.

 

My instructions for you:

1.)Slap it on

2.)Tune the carb and check timing (http://www.racetep.com/weberadj.html)

I'm at 1.75 turns out on the mixture screw that's how i know my jetting is right!

3.)Drive the truck 90 miles an hour (because you finally can) to the nearest track and field stadium

4.)Go for the world record shot-put throw with your old hitachi (because that's about all it's good for in my eyes now)

[hoopty]

The jetting depends first on the venturis. So confirm which ones you have.

 

Here is Redline Weber's baseline jetting for a stock L16 engine:

 

 

This seems ideal and i will soon start at this platform to slowly start to improve my economy, the carb comes with pretty similar settings. (http://www.webercarb...3236DGAVEV.pdf)

[ggzilla]

Congratulations. Yes, the baseline settings work for L16 to L20B and even other non-Datsun engines if all are in stock type condition. Go for it.

 

By the way, "tuning the carb" means changing jetting and such. Turning the mixture screw is only setting the idle mixture to a baseline setting.

 

Now you can final adjust the idle mixture. When the engine is fully warm, turn the screw in/out until the engine runs the highest speed, too far out and it will slow down, too far in and it will slow down. When adjusted for the "best idle", then turn the idle speed screw to the right speed (650 RPM is good). This affects your idle and low speed mixture, but has little effect on full throttle mixture or even "cruise" mixture (say 60 mph).

[dacaulker]

i even went one step further and used a vac gauge and an O2 sensor to help tune.

I might have been a little paranoid, only because i blew up a motor once having had a lean condition.

[H20doctor]

i have a webber question ? who would you recommend in the seattle / eastside area to rebuild a webber 32 /36 and put new jets in it ?

[dacaulker]

I say you are.

Weber carbs are so easy even you can build one...

[hoopty]

Just buy a rebuild kit and some jets, it is easy enough

[Rob W.]

Ya do it yourself they are not much more complicated than the carb on your lawn mower.

[H20doctor]

I would love to learn how from the pro's here on the forum , Please PM me so i can learn the in and out of my webber.. thanks everyone, im in the North end