legacycentral bbs

my car is carburetor motor and my problem that my car rpm drop up and down

how can i fix that thx alot for any advice .....


I'm from Egypt and no people know about Subaru maintenance


thx ............

www.ultimatesubaru.org/forum has a bunch of members who own carburated subarus. On this site, all the Legacys are fuel injected (well, except for yours).

You could have a vacuum leak. Check the rubber hoses going into the carb. It also won't hurt to look at the carb and clean it out, but I'm leaning towards a vacuum leak as the problem. That's just general advice as I've never seen a carbureted Legacy in person, but carburetors are pretty simple animals, so the advice should be sound.

it's special for Egypt the car have 1600 cc motor with carburetor would you please till me where can i find the vacuum is it in carbratour or out of it thx again .

i can take pic for the car to see you the motor and you till me whre is the vacum thx again .....

waiting for replay

The vacuum is created in the intake tract any time a piston is on the intake stroke. As it travels down in the cylinder, it pulls air through the open valves, creating a vacuum in the intake tract which also pulls air (and fuel) through the carburetor. Anything that uses a vacuum, like power the brake booster will get its vacuum from the intake. So any rubber hoses that come from the intake or carburetor could be causing the problem. The carburetor regulates idle speed with a set opening that allows in air with the throttle closed. If the idle speed hunts up and down, it's because the amount of air is changing, which points to a rubber hose or several flexing, closing off and opening wherever there's a crack. Being in Egypt's dry air for so long, they are probably dry rotted. You could also have a bad gasket causing a leak, but you need to rule out the hoses first. I would guess all the hoses should be replaced because even if one's bad, the rest will be soon to go. The good thing is that it shouldn't cost you much money or be very difficult to fix. You don't need to get spend a lot to fix it or get special hoses. All the hoses need to do is be the same diameter and make the connections of the old hose without being kinked.

As an aside, I wish you and your country the best with everything going on there.

very very thanks ........
i want to till you something i understand every thing about your words
but by the way may i ask you if i but the picture can you help me to till me which things should i replace or fix
very thanks for your care about my question

and very thanks for your felling about me and my country

Egypt For Ever

or can you send to me pic for this thx....

take a pic and post it, im sure someone will edit it and help you out

I don't have any pictures since I've never seen a carbureted Legacy, but what I told you works for any carbureted car. If you post a picture of your engine compartment, I can maybe give you an idea, but pretty much any rubber hose that isn't for the cooling system will be connected to the intake manifold and maybe the carburetor (but you probably just have the fuel lines going into the carburetor). Egypt doesn't have any emissions standards (or any that matter—I don't remember if you still have leaded gasoline from when I was there, but I know they use it elsewhere on the African continent. Leaded gasoline would mean you don't have a catalytic converter or much else for emissions), so there shouldn't be too many vacuum lines. If you have a carburetor, you must have a distributor, so you probably have a vacuum line going to that for timing advance and you'll have one for the power brake booster (looks like a drum up against your firewall/bulkhead and your brake master cylinder comes out of it). I might be forgetting something, but that should be about it for vacuum lines.

i need advice can i switch my car from carburetor to injection or non
and if yes what is the things should i take from market
for example wires - car computer - or what else

Not easily if at all since. You'll need at least the wiring harness, computer, entire intake assembly with fuel rails, ignition system, some way to plug the hole from the distributor (I'm assuming you have one as I don't imagine they'd pair electronic ignition with a carburetor), probably a higher pressure fuel pump, maybe the fuel filter. With everything you'd need, you'd be better off trying to find a fuel injected car. If they don't have any in Egypt, you'd probably be looking at importing an entire car or a front clip from a fuel injected car. The good thing, maybe, is that you'd also end up with a bigger engine. But all that is far, far more work than anything you'd have to do to fix a hunting idle.

Not sure if you got this figured out, but here is the factory manual for the overseas Legacy/Liberty. It has an engine section for the carbureted engines. This may help, and it probably has some pictures in there.

http://main.experiencetherave.com/subar ... tion_2.zip

thx alot