Mechanics

STALLING AND LIMITED SPEED

1979 Mitsubishi Lancer • 78,000 miles

Help me please : (
i'm new here. Im new at cars. I got mine last march
a used mitsubishi lancer colt.
and i'm wondering if someone could help me with my problem.
it runs at most 60 when cold and 80 when the weather is hot.
and it does a quick uhm. Not really a stall. But not strong enough to be a misfire. I don't know what it's called but there's an air burst on my air cleaner

there's this second barrel on my carburetor that's got a double butterfly and the butterfly below opens at 80% throttle but the top one wont budge. Is it normal?
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Jicary
June 4, 2012.



Yes, the secondary butterfly opens rather late and that is normal.

For the lack of power and backfiring, I believe the ignition timing is too low. You would need a timing light to get the correct ignition timing. Anyway you can try this.

At the distributor there is a holding bolt that sits on a slotted hole. Mark the initial position of the distributor with a point where it sits onto the cylinder. Loosen the holding bolt and turn the distributor lightly counterclockwise.

Retighten slightly just to hold it and start engine. Retest the response. If it worsens, with engine running, loosens the bolt slightly so that you can twist the distributor and slowly turn it until you get the best idling at the highest rpm. It can be colockwise or counterwise depending on condition. Can't remember if the rotor turns clockwise or counterclockwise so one way advances the ignition timing where countering it would retard the timing. Tighten bolt and retest.

KHLow2008
Jun 16, 2012.
I'll do this today and give you feed back later today. : D

Tiny
Jicary
Jun 17, 2012.
Btw, if you're a father.
Happy father's day : D

Tiny
Jicary
Jun 17, 2012.
Yes, I am and thanks for the well wishes.

Same goes to you if you are one too. : )

KHLow2008
Jun 17, 2012.
Good evening.
I'm not : ) I'm still 20.
Look : D I've done what you said and I'm so happy, it really worked. The starting power is back up and the misfiring is gone.
I did it myself.
Yay!

Problem is, there's this whistling sound that I can't pinpoint its somewhere near the carburetor and the firewall.
Could it be the choke butterfly that I opened?

Tiny
Jicary
Jun 17, 2012.
Whistling noise can be due to vacuum leakages or the air cleaner is not installed correctly. If you wish to locate the source, get a rubber hose to act as sthethoscope and move around till you get the source.

KHLow2008
Jun 17, 2012.
I can't find it. It's so annoying, I'll try again tomorrow. I only get the time to see my car when it's evening.

Tiny
Jicary
Jun 18, 2012.
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