The Chilton makes it sound simple:
‘Tag and disconnect all fuel, vacuum, coolant and electrical lines or
hoses leading from the carburetor’
‘Disconnect the accelerator linkage’
‘Remove the 4 carburetor mounting bolts and lift off the
carburetor and its gasket’
If I do this, inspect all the hoses (etc.), replace any that look bad,
clean everything - will I find a problem that I can fix? Or would I
waste my time?
Year Idle Mileage
2005 0791 146,803
2007 0812 147,770
2009 1024 148,740
2011 1166 149,798
2013 1149 150,085
2015 1145 150,656
2017 >1200 150,996
The idle rpms were measured by the emissions tester. I haven’t done anything serious to the carburetor other than fix the choke before that 2005 test. (Actually, I failed the first test, then fixed the choke.)
'87 Toyota pickup DLX 4-cylinder 5-speed manual red. The VECI says it’s supposed to idle at 700.
Chilton also tells me to drain the coolant first - does the carburetor use coolant?