Chestcutter
SILVER Star
Have a couple of questions for the experts. I have a 1978 model FJ40 which has a factory replacement block in it
Date code on the block is 7 10 06 so likely Oct 77
Carb appears to look like 78 model year. Carb date code is 7J5 so 12/5/77 likely original?
Previous owner did a frame off restoration and started the desmog.
Removed:
Air injection and smog pump
EGR gone and capped
Vacuum lines are a mess - charcoal canister hooked up backwards etc.
I’ve corrected most of the issues following Jim C’s desmog diagrams and associate threads. Kudos to all who have contributed.
Questions
1: how to plumb the throttle positioner circuit which currently goes through the VSV ( not sure if this or the computer are functional though present)
2: is a blue VTv needed on the TP circuit whether or not the vacuum switching valve is used?
3: what to do with the port at the front top of the carb which originates next to where the pipe from the OVC valve connects to the float bowl see photos
Any help from the experts here is appreciated!
Date code on the block is 7 10 06 so likely Oct 77
Carb appears to look like 78 model year. Carb date code is 7J5 so 12/5/77 likely original?
Previous owner did a frame off restoration and started the desmog.
Removed:
Air injection and smog pump
EGR gone and capped
Vacuum lines are a mess - charcoal canister hooked up backwards etc.
I’ve corrected most of the issues following Jim C’s desmog diagrams and associate threads. Kudos to all who have contributed.
Questions
1: how to plumb the throttle positioner circuit which currently goes through the VSV ( not sure if this or the computer are functional though present)
2: is a blue VTv needed on the TP circuit whether or not the vacuum switching valve is used?
3: what to do with the port at the front top of the carb which originates next to where the pipe from the OVC valve connects to the float bowl see photos
Any help from the experts here is appreciated!