No. 6>4
It is: 0.004
4.00 is larger. The whole numbers are always on the left side of the decimal point. The frations or parts are on the right side of the decimal point. So 4 is a whole number .004 is 4 parts of a whole number, it is 4/1000
006 (ignore the noughts)
.004
No. 6>4
.004 to .006 in. on the intake and .006 to.008 in. on the exhaust
Intake: .004-.006 Exhaust: .006-.008
.004-.006
.004 int.,.006 ex.
004 up to 1971, then 006 on
.004 intake.....006 exhaust
INTAKE SOULD BE .004" TO .005" EXHAUST SHOULD BE .006" TO .007"
Intake is .002-.004 inches and exhaust is .006-.008 inches when cold.
It is: 0.004
.004" intake, .006" exhaust. Per several websites and Clymer/Haynes manuals.
IIRC Volkswagen originally called for .004 intake and .006 exhaust on that engine. John Muir, who wrote "How to Keep Your Volkswagen Alive," always recommended setting both valves to .006, and VW eventually agreed.