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engine revs when applying brakes

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Old Jan 19, 2022 | 02:44 PM
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Default engine revs when applying brakes

I started 68 327 other day to loosen things up over the winter and noticed when I applied brakes at idle engine would rev about 400-500 RPM's over idle. Didn't do a whole lot of checking then but what are some possible areas to check? Check valve on booster, bad booster, leak on vacuum line from carb? Any help is appreciated. Thanks, Tom
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Old Jan 19, 2022 | 03:49 PM
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Leak in power booster or check valve to booster or line to the above....air entering manifold causing elevated revs due to 'vacuum' leak.

Unkahal
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Old Jan 19, 2022 | 04:12 PM
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^^^^this^^^^
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Old Jan 19, 2022 | 06:25 PM
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also running too rich in the first place or the extra air would make it die...
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Old Jan 19, 2022 | 07:19 PM
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Buy narrower shoes.
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Old Jan 19, 2022 | 07:40 PM
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I had a weird, rough idle on my L-79 one time when starting and realized that the oil cap on the front filler tube was loose and creating a weird vacuum leak. Lou.
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Old Jan 19, 2022 | 09:53 PM
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I think Fats Waller knows what your problem is:

Who's that walkin' round here?
Mercy, sounds like baby patter
Baby elephant patter, that's what I calls it

Say, up in Harlem at a table for two
There were four of us: me, your big feet, and you
From your ankle up, I'll say you sure are sweet
From there down there's just too much feet

Yes, your feet's too big
Don't want you 'cause you feet's too big
Can't use you 'cause you feet's too big
I really hate you 'cause your feet's too big

Where'd you get 'em?
Your girl she likes you, she thinks you're nice
Got what it takes to be in paradise
She said likes your face, she likes your array
Man, oh man, them things are too big

Oh, your feet's too big
Don't want you 'cause you feet's too big
Mad at you 'cause your feet's too big
I hate you 'cause your feet's too big

My Goodness! Gun the gunboats!
Ship, ship, ship!
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Old Jan 21, 2022 | 05:15 AM
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Thanks-that was the way I was going to start-just double checking
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