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Idle Air Metering Jet Orientation Solex P 40II
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Greg Greer
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Joined: September 19, 2013
Posts: 7
Location: Boone, NC
Greg Greer is offline 

PostPosted: Sat Aug 01, 2020 5:53 pm    Post subject: Idle Air Metering Jet Orientation Solex P 40II Reply with quote

I can only get my # 4 cylinder to idle by slightly backing off the idle metering jet by about 1/6 of a turn counter clockwise. My other idle metering jets are turned in completely and run fine. I have tried switching this jet with other idle metering jets, however, it is the same story. It will only run if the jet is backed off about 1/6 of a turn. I can turn this cylinder on and off just by this slight turn.
My mixture screws are turned consistently out, however #4's mixture screw only has an effect when the idle metering jet is backed off the slight 1/6 of a turn. I have cleaned this circuit with carburetor cleaner and my idle air bleed is clear. I cannot detect any air leaks or ignition issues. I have good compression and spark. The engine runs fine off idle range. The questionable JET IS #9 in the first pic and Letter g in the second pic. Any advisement appreciated.

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Joined: December 28, 2016
Posts: 195
Location: atlanta ga
dr914@autoatlanta.com is offline 

PostPosted: Thu Aug 06, 2020 8:32 am    Post subject: Re: Idle Air Metering Jet Orientation Solex P 40II Reply with quote

Greg, I would ask someone on the 356 registry, they could answer immediately

http://forum.porsche356registry.org/viewforum.php?f=1&sid=16f265691ec1f3691be0b195ae5b4276
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