vapor locking
06-14-2001, 12:45 AM
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vapor locking
I own a 67 912 that will vapor lock when driven steadily in hot weather. I have replaced pumps and last year rebuilt my pump. When I vapor locked this year I began considering an electric pump. Tweeks and others sell a Facet electric pump for about $50. Does anyone have an opinion about solving the problem in this way?
Thanks
Norm Dewhurst
Thanks
Norm Dewhurst
06-14-2001, 07:10 PM
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Hello
Vapour Lock is possible in hot areas.
Especially on overheatet engines.
Yes get a Facet or other fuellpump and install it in the line to boost fuelflow.
If you have a returnline to the fueltank you can use a larger fuelfilter and a T plus a reduction to flush the hot fuel out of the enginebay.
Also check your Ignition/Timing and if your carbs still have the temperature blocks under the manifold.
Not to forget the preheating system if the flaps are shut.
Grüsse
Vapour Lock is possible in hot areas.
Especially on overheatet engines.
Yes get a Facet or other fuellpump and install it in the line to boost fuelflow.
If you have a returnline to the fueltank you can use a larger fuelfilter and a T plus a reduction to flush the hot fuel out of the enginebay.
Also check your Ignition/Timing and if your carbs still have the temperature blocks under the manifold.
Not to forget the preheating system if the flaps are shut.
Grüsse
06-15-2001, 12:02 AM
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Norm-JC Whitney has the exact same Facet pump for about $35.....or pick up a copy of "Hot VW's" magazine (yeah, I know, corny name, but tons of ads for parts!) and find a VW aftermarket parts supplier who has them even cheaper. 
07-01-2001, 03:42 PM
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Norm
We've had great success with the facet fuel pump in curing oddball fuel supply problems like yours. Although facet offers pumps of differing output pressure, it's still best to use a pressure regulator. The best of these that I've found is the Holley unit, set just about as low as it can go (at least for Webers).
Paul
We've had great success with the facet fuel pump in curing oddball fuel supply problems like yours. Although facet offers pumps of differing output pressure, it's still best to use a pressure regulator. The best of these that I've found is the Holley unit, set just about as low as it can go (at least for Webers).
Paul