Jump to content
  • When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Weber 38 question


TodB
Go to solution Solved by TodB,

Recommended Posts

I'm in the process of fine tuning my Weber 38. I've read most of the weber 38 related posts here and have found them very helpful. I've recently swapped out the 45 idles for 50s. When I pulled them, I expected that one would be small and the other large but both were small. Is that OK or should I make one of them large? Which one?

Link to comment
Share on other sites

The 32-36 uses a small jet on the secondary side and a large one on the primary IF it has an idle cut off solenoid. (on the primary side)  Otherwise, they're both the small style.

 

The 38-38 doesn't use a cut off solenoid.  It'd need two, if it did.  So the jets should be small, assuming I am understanding your question.


 

 

 

  • Like 1

   

Link to comment
Share on other sites

9 hours ago, '76mintgrün'02 said:

So the jets should be small, assuming I am understanding your question.

and both the same? size on a 38-38.

  • Like 1

A radiator shop is a good place to take a leak.

 

I have no idea what I'm doing but I know I'm really good at it.

Link to comment
Share on other sites

Just so I am clear, I am using the same jet sizes on both sides, 50s right now. My question is the physical size. On my old 32/36, one side had a larger jet then the other. The jet holders were slightly different. When I pulled the 45s from the weber 38, they were both small. 

Edited by TodB
Link to comment
Share on other sites

11 minutes ago, jimk said:

and both the same? size on a 38-38.

 

That's my guess, but I've never owned one.  That being the case, maybe I should have let someone else answer.

 

2 minutes ago, TodB said:

On my old 32/36, one side had a larger jet then the other. The jet holders were slightly different. When I pulled the 45s from the weber 38, they were both small. 

 

You can buy a jet holder for the 32-36 that replaces the cut-off solenoid and that holder uses the larger jet (like the solenoid).  The diameter of the threaded portion of the solenoid is larger than the standard jet holder, so you cannot just use a small jet if you delete the solenoid.  ((Mike Self has a rare and special cut off solenoid that takes the small jets, but it's the only one I've ever heard of)).

 

That should explain the two sizes in a 32-36.  It's different than the 38-38.  Matching small jets makes sense to me, but as I mentioned to Jim, I'm only guessing and sharing what I know about my carb.

   

Link to comment
Share on other sites

Pierce manifolds has awesome exploded views and list all of the parts.  Looking at the 38-38, both jets (#34) are the same size (small).

 

WWW.PIERCEMANIFOLDS.COM

Weber carburetor,Intake Manifolds, Conversion Kits, Air Filters, Linkages,Everything you need for your new or vintage ride!

 

38DGES.png

 

   

Link to comment
Share on other sites

Their both the same size on the 38/38 because both barrels open at the same time where the 32/36 is a processive carb. 

  • Like 1

If everybody in the room is thinking the same thing, then someone is not thinking.

 

George S Patton 

Planning the Normandy Break out 1944

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • BMW Neue Klasse - a birth of a Sports Sedan

    BMW Neue Klasse - a birth of a Sports Sedan

    Unveiling of the Neue Klasse Unveiled in 1961, BMW 1500 sedan was a revolutionary concept at the outset of the '60s. No tail fins or chrome fountains. Instead, what you got was understated and elegant, in a modern sense, exciting to drive as nearly any sports car, and yet still comfortable for four.   The elegant little sedan was an instant sensation. In the 1500, BMW not only found the long-term solution to its dire business straits but, more importantly, created an entirely new
    History of the BMW 2002 and the 02 Series

    History of the BMW 2002 and the 02 Series

    In 1966, BMW was practically unknown in the US unless you were a touring motorcycle enthusiast or had seen an Isetta given away on a quiz show.  BMW’s sales in the US that year were just 1253 cars.  Then BMW 1600-2 came to America’s shores, tripling US sales to 4564 the following year, boosted by favorable articles in the Buff Books. Car and Driver called it “the best $2500 sedan anywhere.”  Road & Track’s road test was equally enthusiastic.  Then, BMW took a cue from American manufacturers,
    The BMW 2002 Production Run

    The BMW 2002 Production Run

    BMW 02 series are like the original Volkswagen Beetles in one way (besides both being German classic cars)—throughout their long production, they all essentially look alike—at least to the uninitiated:  small, boxy, rear-wheel drive, two-door sedan.  Aficionados know better.   Not only were there three other body styles—none, unfortunately, exported to the US—but there were some significant visual and mechanical changes over their eleven-year production run.   I’ve extracted t
  • Upcoming Events

  • Supporting Vendors

×
×
  • Create New...