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Author Topic:   snap,crackle,pop
Dirt Maniac

Total posts: 196
posted May 07, 2005 04:15 PM  
When i shut the car off i hear a crackling noise from the intake?Pretty loud,I am guessing this is unburned fuel?(running alky)
Is this normal?

Dirt Full Roller

Total posts: 46
posted May 07, 2005 10:16 PM  
I've heard it both with gas and alky, never thought much about it, assumed it was normal, something to do with condensation in the intake. Never heard it on an injected engine.

Dirt Freak

Total posts: 270
posted May 09, 2005 07:17 AM  
Get your fuel by-pass on and it will most likely go away. The noise you hear is excess fuel leaking into the manifold and igniting on the hot base of the intake plenum.With the by-pass,fuel pressure will bleed off quickly through the by-pass relieving the pressure at the needle and seats in the carb.
I have also heard that ruptured (bad) power valves can cause flooding after the engine is shut off because the float bowls will drain down into the intake through the PV's.

Dirt Freak

Total posts: 338
posted May 09, 2005 10:17 AM  
you coming to oshkosh for the opener tomorrow (tues) night??

[This message has been edited by rpm20 (edited May 09, 2005).]

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