My wife complained that her 1985 D88 was stalling at low speeds. Removed the air cleaner this morning and found this. Yes, that is an idle mixture screw sitting on the intake.

To quote Holly Hunter from Die Hard 2, "why do these things keep happening to us?"

 

How did that engine even run right with that mixture screw backed out a few turns, let alone far enough to fall out? Your Mrs must be pretty tolerant of a rough running engine.

 

Actually, the CCC system compensated by changing the duty cycle of the mixture control solenoid. It was surging a little, but really didn't run poorly.

 

Ha haha, been a while since I've seen that. Make sure the spring has enough tension to keep it in place. The only other cause is a squirrel thats upset with your...

 

Yup, my thought exactly.

 

[QUOTE=joe_padavano;1002426]My wife complained that her 1985 D88 was stalling at low speeds. Removed the air cleaner this morning and found this. Yes, that is an idle mixture screw sitting on the intake.

To quote Holly Hunter from Die Hard 2, "why do these things keep happening to us?"



Its Bonnie Bedelia.

 

Yes, it was. DOH!

 

Looks like the spring is to short did a piece break off? If I remember right new springs will go to the end of the point.

 

Nope. Both ends are ground flat, as they should be. I suspect the spring has just compressed a little and taken a set.

 

The Russians did it!

 

A dab of red Loctite will prevent that from happening again.



LEGAL DISCLAIMER
for those unfamiliar with working on carburetors: This is a joke. Do not attempt.

 

You need to set up a surveillance camera!

 

I was thinking TIG welder...

 

No no no, you got it all wrong. Lubricate the threads with JB Weld.

 

It's the same gremlins that hide the tool you were just using, got um at my house too.... Tedd

 

Oh, man. Don't get me started about THAT!

I just chalk that up to my advanced CRS disease... Can't Remember $**t!

 

Wow. That's a new one on me.

I agree with the obvious - probably a weak spring. I can't imagine anything else unscrewing that screw that many turns, except maybe a leprechaun, or perhaps even Murphy himself, Heaven protect us!

- Eric

 

A pissed off squirrel...

 

Okay, so if the squirrel turns screws consistently counterclockwise when he's PO'd, can I catch him, feed him, and make him happy, so that he turns things clockwise, then have him assemble an engine for me?

- Eric

 

Damn squirrels
Could be the ghost of a PO

 

 

 

Guys:
Same sort of thing happened to me a couple years ago. I have a Holley 4150 carb on my big block, it started running really rough, I pulled the carb and found one of the jets laying in the fuel bowl, never ever saw that happen before.
Ron