Weber Carby

suba88 · Post by **suba88** » Mon Jan 02, 2006 12:58 pm

I've just finished installing the weber on my EA82 but after running it for a while and engine has heated up, the carby wants to continue firing after i turn off the engine. It just coughs and shakes for a few seconds. What would this be?

Thanks

Bobbrumby · Post by **Bobbrumby** » Mon Jan 02, 2006 2:42 pm

it called "run on" or "dieseling" its happens becuase the engine to continueing to suck petrol down into engine and ignite off hot metal after its turned off or running rich. appearently it can wreck your rings. My brumby does it sometimes, so everytime I turn it off I let the clutch out and when it just grabs turn the key off.

Sometime smaller primary idle jets fixs it but i am too lazy/unexperienced ith carbs to go that route.

AndrewT · Post by **AndrewT** » Mon Jan 02, 2006 6:43 pm

That Weber could benefit from a quick rebuild kit fitted (you may have done this already) and I don't know if it has been re-jetted or not. Aparently you can get different sized jets to specifically suit an EA82.

It used to run pretty rich on my car and it did diesel but that only happened once or twice the whole time I had it. (did it way more with the stock carbi actually heh).

Andrew · Post by **Andrew** » Mon Jan 02, 2006 9:36 pm

weber doesnt have an idle stop solenoid.
if you have high compression and hot pistons it will diesel

retard your timing a bit see if it makes a diff.

suba88 · Post by **suba88** » Mon Jan 02, 2006 9:37 pm

Yeh i have put a carby kit through it already and i have checked the jet sizes. They are pretty close to the weber standards, i mite see if i can get those jets that are suited for an EA82. Do you know where abouts they are available.

Fang · Post by **Fang** » Mon Jan 02, 2006 10:09 pm

Suba88, try running a premium fuel (98 RON preferably) in it - I run BP Ultimate and this solved my problem. You can buy idle stop solenoids for Webers - but I dont think they are common.

If you want to change jets - I would definately be looking at the primary idle jet (as previously mentioned). You will find the jet in the primary side of the carbuerttor (screws into the outer casing)

Andrew · Post by **Andrew** » Tue Jan 03, 2006 7:01 pm

good luck buying parts for webers

no longer made

Fang · Post by **Fang** » Tue Jan 03, 2006 7:46 pm

http://www.jtoutfitters.com/product/WEB43914060B

Doesn't mean they arent available. New OR Secondhand.

suba88 · Post by **suba88** » Tue Jan 03, 2006 8:19 pm

That is a great link. Where abouts does that 'idle stop valve' go onto the carby? Can't see a spot for it.

Where abouts are JT Outfitters located?

Suba · Post by **Suba** » Tue Jan 03, 2006 8:22 pm

We are located between Danbury and Walnut Cove, NC.
We are located in the central part of NC near Winston Salem, Greensboro and High Point; Charlotte and Raleigh are both less than 2 hours away.

Fang · Post by **Fang** » Tue Jan 03, 2006 8:24 pm

ie - the US. I did say they would be hard to get :P

Seriously Suba88 - try the premium fuel before the idle solenoid.

Suba · Post by **Suba** » Tue Jan 03, 2006 8:25 pm

http://static.zoovy.com/img/jtoutfitters/-/upsmap

Fang · Post by **Fang** » Tue Jan 03, 2006 8:30 pm

The idea of those solenoids is that they go in the primary idle jet hole (I believe). I have never had personal experience with one - but was looking to get one a while ago myself

suba88 · Post by **suba88** » Tue Jan 03, 2006 9:38 pm

I will give the premium fuel a go. My car is going into a Carby workshop tomorow. They are going to test a few things and tune it up a bit. Because i had to use 2 adapter plates the guy reckons that could put out the jet sizing a little bit. But hopefully after tomorow my car will be running sweet. I can deffinately feel the difference between the weber and the old hitachi. And the exhaust note when the secondaries fire is very nice!

I really want to see if it helps when i'm 4wding. That was the main reason for the conversion. What is your exeperiences like?

Paul

AndrewT · Post by **AndrewT** » Tue Jan 03, 2006 11:49 pm

Hey Paul, Don't know if you've noticed this old thread revival going on....

http://www.ausubaru.com/main/modules.ph ... c&start=15

Seems pretty relevant, hopefully a good help.

SuBaRiNo · Post by **SuBaRiNo** » Tue Jan 03, 2006 11:52 pm

It will definately be better for offroading. Basically you can make the secondary open just by flooring it... for instant power... but the hitachi runs off vacume and that has to build up before the secondary can activate properly.

Dave

Fang · Post by **Fang** » Wed Jan 04, 2006 5:33 am

Pretty much what Dave said there - I notice how much better the Weber is offroad - going up steep climbs slowly and you suddenly need to floor it - and on beach cuttings.

subanator · Post by **subanator** » Thu Jan 05, 2006 12:33 am

Weber is such a simple design carby and heaps easier to overhaul of jet than a Hitachi. I have done both.
Remember the jets for tuning are not only the fuel jets, but the air bleed ones as well and the emulsion tubes. All this will give correct tune.

The dieseling and run on fix is definately Premuim fuel. This will also allow higher ignition advance from 8deg to 12-14deg. It will not ping either up hills or under heavy load in sand etc, as this fuel has a higher knock factor and octane.

Andrew · Post by **Andrew** » Sat Jan 07, 2006 1:03 pm

I dont understand why people dony get 34adms???? and stop playing with prehistoric 32/36's?.

Its got everything you want.. Idle stop, AC fast idle sol etc.....
and you can easily get parts for them

BaronVonChickenPants · Post by **BaronVonChickenPants** » Sat Jan 07, 2006 7:01 pm

I dont understand why people dony get 34adms????

Keep talking, I'm listening.

I would say mostly it's because everyone has been using webers for so long and they know they work, also they're kinda the default upgrade carb for suby's.

Jordan.