1977 f-100 302 v8 vacuum diagram
#1
#2
hello
74 with 302
some of mine are capped off i am not using stock breather but maybe someone here will know where they go if you are. i am not 100% sure mine are right i just know it works and runs good
back of carb to pcv
click images to enlarge
front bottom right of carb going to plastic t fitting then to distributor and to bottom of egr
click to enlarge
pass side bottom of carb to egr
click to enlarge
capped off
click to enlarge
now that i see your from california these pictures probably wont help with all the emissions stuff you probably have
74 with 302
some of mine are capped off i am not using stock breather but maybe someone here will know where they go if you are. i am not 100% sure mine are right i just know it works and runs good
back of carb to pcv
click images to enlarge
front bottom right of carb going to plastic t fitting then to distributor and to bottom of egr
click to enlarge
pass side bottom of carb to egr
click to enlarge
capped off
click to enlarge
now that i see your from california these pictures probably wont help with all the emissions stuff you probably have
#3
#4
#5
I have a 1977 F100. 302, 2V 4 speed M/T. Manual brakes. Non CA truck. I do have a charcoal canister. I have the EGR carb plate, but the EGR hasn't been hooked up since I bought the pickup this spring. I don't have a ported vacuum switch on the drier's side rear manifold nor do I have a ported vacuum switch on the thermostat housing. I don't want to run my EGR, but I do want to operate the snorkel which is hooked up to manifold heat. Can I just tee off the distributor advance to run the air cleaner circuit. Thanks guys! Anyone have a diagram for my specific pickup? I can't find one anywhere.
Last edited by msalander; 12-07-2020 at 09:55 PM. Reason: missing word
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