What would cause timing to be 8 degrees btdc instead of 15 degrees btdc on a 1993 Nissan Pathfinder?

Answer 1

first make sure you check what is called your base timing,each

car has a procedure that bypasses all components that advance timing automatically, ex gm some ignition wire must be pulled to check base timing, is your not checking base timing your check timing that is constantly being adjusted usually by electronic ignition module older cars had a vacuum advance diaphragm. check the correct timing procodure

to get your timing to base,next

Nissan are famous for lower crank pulley(harmonic

balancer)

rubber insulator to dry up and the outer counterweight slips a few degrees which also has your timing mark if the mark moves you don't have the correct mark,you

should look for a small wobble on crank pulley and weight,i

have also seen timing belt installed with on tooth off mark. if all checks out maybe someone lower the timing to run on regular gas without pining or detonating. if you set it to 16 make sure engine has no pinging or knocking noise when engine has a load on it like climbing a steep hill, passing someone on the highway,detonation will ruin a engine in a month and I have had a few years of p/finders some of them with 250,000 to 300k miles it a great engine. o h the way call your Nissan dealer and ask them what years they have to by back from you beacause

of a non published defect in the frame they gave 4700.00 dollars to a customer that bought mine 8 years ago after he put another 149,000 mile I sld

it with 125,00