Car smells rich on idle.

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Mr B
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Car(s): Four 3 litre Capri's and 2 Mark 1 GXL's

Re: Car smells rich on idle.

Post by Mr B » Sat Aug 01, 2020 10:50 pm

Mc Tool wrote:
Sat Aug 01, 2020 9:36 pm
Ha , :) that's what made me think of it , I too have a 390 holley and it too has an idle circuit on the secondaries, I think from memory that the secondary throttle plate opening is set with a 10 thou feeler gauge down the bore between the plate and throttle bore wall .
Yep spot-on mate, the secondaries do have an idle circuit, stop's the fuel in the secondary float chamber from going stale if the motor isn't gunned for a while and as you say the secondary blades do need a feeler gauge at 10 thou, if too far open you get the problem I had, if too tight there's a chance the blade's will jam shut in the venturies.

Lovely sound when them secondaries open!

Wayne
If an honest man is wrong and after demonstrating that he is wrong he either stops being wrong or stops being honest

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