Is the state of California allowed to set its own emissions standards?
Is the state of California allowed to set its own emissions standards?
Under federal law, the state of California is allowed to promulgate more stringent vehicle emissions standards (subject to EPA approval), and other states may choose to follow either the national or California standards.
When did they start using vacuum lines for engines?
One of the most confusing aspects to tuning up an engine from the late 1970’s and 1980’s is all the early attempts manufacturers made to improve emissions with various vacuum-operated devices.
When was the first set of emission standards introduced?
As a result of the 1968 law, dispute resolutions were passed under the 1970 (Japanese: Air Pollution Dispute Resolution Act). As a result of the 1970 law, in 1973 the first installment of four sets of new emissions standards were introduced. Interim standards were introduced on January 1, 1975 and again for 1976.
When did the I6 engine get a vacuum line?
The above image is the vacuum diagram for both the 1977 I6 engine. This system first arrived in California FSJ and all CJ models, and was later added to 49-state FSJ’s. Most distributors from this era have several simultaneous methods of advancing the ignition timing.
When did California raise the heavy duty emission limit?
California emission history is identical with one exception: that state raised the heavy duty emission threshold for California-sold vehicles from 6,000 lbs GVWR to 8,500 lbs GVWR a year earlier, for 1978. (I.E. the Federal Government followed California’s lead a year later, for 1979.) A few other general facts:
One of the most confusing aspects to tuning up an engine from the late 1970’s and 1980’s is all the early attempts manufacturers made to improve emissions with various vacuum-operated devices.
The above image is the vacuum diagram for both the 1977 I6 engine. This system first arrived in California FSJ and all CJ models, and was later added to 49-state FSJ’s. Most distributors from this era have several simultaneous methods of advancing the ignition timing.
Is there a vacuum diagram for the 107?
There are many variables through the lengthy 107 manufacturing run and yet no one manual offers a vacuum diagram for all of the various systems. It is only through the kindness of other 107 owners that vacuum problems seem to be resolved.
