Weber Progressive 32/36 DFEV

Jefflee · Post by **Jefflee** » Sat Dec 11, 2004 10:32 am

Has anyone on the list installed of of these on their Thing and if so what do you thing, good or bad. Thanks

Bob Ingman · Post by **Bob Ingman** » Sat Dec 11, 2004 8:44 pm

Against
1.They are not too smooth on a daily driver.
2.They tend to ice badly in cold weather.
3.Never be able to have both good idle and top speed.
4.It likes to hesitate at about 3000 RPMs coming off the line.

For
1.They go faster than a stock Solex.
2.They go faster than a stock Solex.
3.They go faster than a stock Solex.
4.They go faster than a stock Solex.
Hope this helps. Bob

suntour · Post by **suntour** » Sat Dec 11, 2004 11:25 pm

I ran one for a while. I wasn?t too happy with it. The weight of the carb vibrating on the end of a long manifold wears the intake boots out fast and causes intake leaks, I did switch to urethane boots and it helped a lot. Also the idle mixture screw is facing the fan shroud and it is damn difficult to adjust properly since you can?t place a screwdriver on it. There are tricks to do this, like put a flat screwdriver bit with those hex shafts (you know the quick change bits for drywall guns) in a ratcheting box end wrench so you can get some leverage to turn it. But it is still a pain to set right. Like Bob mentioned the flat spots are annoying but you do notice a get and go factor. I have since switched to duel 40 Weber IDF?s and have been very happy but they would be a bit to much carb for a 1600cc. (I assume you still have a stock sized motor) Personally I would see if you can scrounge up a pair of dual Kradons or some equivalent. I hear a lot of good things about those and a used set would run you about the same or less as a new Weber Progressive.

Just my 2 cents.

MNAirHead · Post by **MNAirHead** » Sun Dec 12, 2004 6:35 am

To set the carb... use 2 gaskets.... rotate the carb 180 degrees... adjusters in the front... then take it back off... rotate the carb to the correct position.

T.

brianwheelies · Post by **brianwheelies** » Sun Dec 12, 2004 9:57 am

mine ran almost as smooth as a stocker while using an 009, had i been using a vacuum advance dizzy, it would have been smooth as glass.

Bob Ingman · Post by **Bob Ingman** » Sun Dec 12, 2004 8:04 pm

Tim the problem with that solution is that these carbs seem to be in constant need of adjustment. I found mine to be that way at least. Every time i drove it was different.
I finally epoxied a dime in the adjusting screw slot. I could slip my hand between manifold and shroud and adjust with finger tips.
I still favor the Kads or better yet Baby Dells over a progresive. Bob

MNAirHead · Post by **MNAirHead** » Mon Dec 13, 2004 6:59 am

Bob.

You're right.... I noticed that the progressives needed constant attention... not my first choice... it always seems as one of the stops on our way to duals.

I'm not a fan of progressives after the choke grounded out and I ended up redoing the wires on our 5/1600 baja bug.

Greetings from Hot Venezuela...

T.

Bob Ingman · Post by **Bob Ingman** » Mon Dec 13, 2004 8:44 am

Did I mention they go faster than a stock Solex? Who needs smooth when you can have fast? Oh you want smooth and fast? Get duals of FI. Bob

brianwheelies · Post by **brianwheelies** » Mon Dec 13, 2004 5:08 pm

i can't believe you guys have had so many problems with your progressives, yeah, mine took a while but once it was done i never had a problem. i did buy mine brand new though, don't know if you guys got used parts or other issues.

Bob Ingman · Post by **Bob Ingman** » Wed Dec 15, 2004 10:19 am

brian the carbs are good for their intended application on water cooled cars. They are not even too bad on air-cooled cars in warm weather but do not work well in cooler weather like most of us see.
You are right about new vs worn though. I bought a new in box one to replace a bad EFI system on my bus and it was much better than the worn out ones I had used in T-1 engines through the years. But on the T-4 engines they do not supply the power boost that they do on the bugs engines. In fact I really don`t think they give as much as the EFI does. Also on the T-4 engines they sit lower so there is a little less fall out. That refers to the tendacy the fuel/air mixture has to fall out of its mistified state when distance is increased. When the mixture is atomized it burns much better. When you speed up the mixture gets into the engine sooner thus is still atomized. Thats why this carb works best when you have your foot in it but is a poor street driver. As I say you can blame the manifold more than the carb for its poor ability to make smooth transition from low to high speeds. Bob

LB181 · Post by **LB181** » Thu Dec 16, 2004 12:34 pm

I ran a progressive on my Thing for a long time with great results. I liked it much better than the stock solex for a little extra power. Once I set it up, it was trouble free for the rest of the time I ran it. I ran that carb on my type IV camper for a while and then on my girlfriend's bug with a 1776 and it ran pretty good as well. For a little extra power and no messing with dual carbs, I think its a pretty good option for a stock engine.

Corey

barls80 · Post by **barls80** » Mon Dec 20, 2004 9:06 pm

Bob Ingman wrote:Against
1.They are not too smooth on a daily driver.
2.They tend to ice badly in cold weather.
3.Never be able to have both good idle and top speed.
4.It likes to hesitate at about 3000 RPMs coming off the line.

For
1.They go faster than a stock Solex.
2.They go faster than a stock Solex.
3.They go faster than a stock Solex.
4.They go faster than a stock Solex.
Hope this helps. Bob

i ran one for 3 years on a 1600 big bore with none of these problems and that was with out a choke since then ive put it on a 1600 tp and it still has none of these problems

Bob Ingman · Post by **Bob Ingman** » Tue Dec 21, 2004 4:36 pm

Everyone please notice that all the Yea votes come fron warm climates while the Nays are from cooler locations.
I am personally running one right now on one of my cars and will tell you that it is not as smooth now as it is in summer. Cheers.Bob

barls80 · Post by **barls80** » Tue Dec 21, 2004 4:41 pm

i actually ran mine for 2 years in crib point which is south east of melbourne where it stops just short of snowing in the winter. so it is bloody cold down there