can someone post a pictire of a vacuum that could be leaking

[Guest dutch]

everyone is telling me i have a vacum leak and i still dont know where to look to find the vacuum.

HELP PLEASE

[DukeRimmer]

(nt)

[TJW]

It would seem that you need some guidance, go to your local old time parts store and ask for:

1, One can of vacuum

2, One jar of Lucas electrical smoke

3, A long stand

If the storeman doesn't have any of these, tell him he is a wanker and should not be in the job.

TJW

[Guest Anonymous]

Vacuum is created in the intake manifold, which is the big aluminum thing on the side of your engine that the carb is bolted to (it has four runners that connect to the head). Like the thing in your broom closet, vacuum is suction. It created by the intake cycle of your engine (when an intake valve is open and its piston is moving down). When you have a vacuum leak, your motor will not run well, especially at idle or near idle because the leak is allowing more air than what is coming thru the carb to enter the intake and mix with the gas. It is leaning out the mix. If its really bad, the motor won't even idle.

Many things use the suction of vacuum to operate them... your power brake booster, your dizzy if you have a vacuum advance or retard, and some of your emissions devices. They are all connected by rubber tubing and any of them could leak. You could also have a leak in your carb, the carb to inatke mounting, or any of the intake to head mounts. It can be a pain to find.

Check the archives for the process for finding a vacuum leak. It involves spraying something like carb cleaner where you suspect a leak while the engine is idling. If it smooths out, you've effectively sealed the leak for a few seconds and you've found your leak.

Of course, many other things can cause similar symptoms... ignition, mechanical, or fuel... Good luck

[napa02]

I saw the title and knew it could only Dutch. dutch my man, you are my idle.

[wohleb]

Budda-boom - Ohhh bad very bad.

[Andy74tii]

Dutch, look at your post below "my car is doing something wierder now." I posted a couple of pictures, assuming that you have a 74tii. HTH.

[ColinK]

Dutch,

your better get the idle fixed this month.

Because if you don't, beware the idles of March.

[ColinK]

Dutch,

your better get the idle fixed this month.

Because if you don't, beware the idles of March.

[Sam_in_VA]

That vacuum leaks really suck!

[DukeRimmer]

Looked through the other posts addressing your problem, and did not see anyone mention the old school method of finding mixture/vacuum problems. Vacuum leaks can occur anywhere from the head ports to the throttle shafts. We old guys, after checking all the rubber hoses, spray carb cleaner on all the joints between intake parts, and the ends of throttle shafts. A change in idle speed indicates leak. It's usually worn out throttle shaft. Please remember that carb cleaner is explosive.

'02 cents worth from old body guy. Good luck.

[bimmerboy]

you need to learn the basics, before you start doing stuff to a tii.

[bimmerboy]

(nt)