Intake Manifold Coolant Delete?
blue1984rex
10 Mar 2014
Hello all, I have a 1984 CRX with an EW1 motor on which I have just installed a weber 32/36 dgev. Now that my carb doesn't have coolant flowing through it, can I just delete the coolant flow to the manifold, or does it serve some other purpose I don't know about? Thanks!
chedda_j
10 Mar 2014
Its simply egr, search block off plates in the carb subsection to find a how to.
cbstdscott
10 Mar 2014
The coolant flow through the bottom of the carb/throttle body is to prevent carb freezing. In situations of extreme cold it is possible for the throttle plate to freeze open if there is not a flow of warm coolant.
I have eliminated the coolant flow through the bottom of my throttle body with no ill effects. BUT!!! I live in California and never drive my car in extremely cold conditions.
Scott
chedda_j
10 Mar 2014
Scott is right, it also helps the intake air heat up in cold climates, but it hot climates, this only creates heat soak, a bad thing.
anjin
10 Mar 2014
Similar provision in the fuel injected throttle bodies, which can also be deleted in warmer climes.
