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Busstom Samba Member
Joined: November 23, 2014 Posts: 3789 Location: San Jose, CA
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Posted: Fri May 18, 2018 1:02 pm Post subject: Puddles of Liquid Fuel in Intake Ports |
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Long-story-short: friend has old unknown 1600, in storage 14 years. Wants to run engine, all I got is 40-IDFs set up for a 2.2 liter.
Bolt ‘em on, we know she’ll be rich as hell, but what the hay. Put it on the stand, fire it off, and voila! Runs great…black-smoke-rich-as-hell…but runs great. Good ‘nuff…shut ‘er down.
Remove carbs, discover puddles of liquid fuel collected on the floors of the intake ports.
Is this because the carbs are dialed for the 2.2 liter, or could it be that the float bowls were overflowing? |
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VW_Jimbo Samba Member
Joined: May 22, 2016 Posts: 9879 Location: Huntington Beach, CA
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Posted: Fri May 18, 2018 2:02 pm Post subject: Re: Puddles of Liquid Fuel in Intake Ports |
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Cold engine, way too rich of mixture. That would be my guess.
The engine is only going to suck in "x" amount of air and fuel. Any extra is going to sit in the intake track and wait its turn. Heavy fuel laden air, froms large droplets which eventually fall out of suspension. _________________ Jimbo
There is never enough time to do it right the first time, but all the time necessary the second time!
TDCTDI wrote: |
Basically, a whole bunch of fuckery to achieve a look. |
67rustavenger wrote: |
GFY's Xevin and VW_Jimbo! |
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jason Samba Member
Joined: August 07, 2002 Posts: 3443 Location: Garage
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Posted: Fri May 18, 2018 4:11 pm Post subject: Re: Puddles of Liquid Fuel in Intake Ports |
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Are you sure it isnt oil? |
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bugguy1967 Samba Member
Joined: January 16, 2008 Posts: 4338 Location: Los Angeles, CA 90016
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Posted: Fri May 18, 2018 7:19 pm Post subject: Re: Puddles of Liquid Fuel in Intake Ports |
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It's common. The turn in the intake is a sharp one, which will force the fuel to fall out of suspension. That coupled with an improper A/F ratio will usually cause puddling. The port's wall texture may not be helping either. |
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Busstom Samba Member
Joined: November 23, 2014 Posts: 3789 Location: San Jose, CA
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Posted: Fri May 18, 2018 8:11 pm Post subject: Re: Puddles of Liquid Fuel in Intake Ports |
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Cool, ok, thanks for the replies. We did run it for at least 15, got it timed and idling nicely...but it was definitely gas, no mistaking that lovely fragrance! |
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