What are the valve clearances on a Honda F23A?
Valve clearances for a cold engine are as follows: intake valves 0.23-0.27 mm, exhaust valves 0.27-0.33 mm. The firing order on this engine is 1-3-4-2.
What kind of engine does Honda Accord f23a4 have?
The ULEV F23A4 also has markings on the rear windows. F23A1: This engine was used in the 1998-2002 Honda Accord LX, EX, and SE, LEV models. The LX and EX engines produce less than 0.0075 grams per mile of non methane organic gas (NMOG), qualifying them for California LEV (Low-Emission Vehicle) status.
How to adjust intake valves on Honda Accord?
Turn the crankshaft another 180° for TDC on cylinder 4 and after doing the needful, turn the crankshaft another 180° for TDC at cylinder 2. In the end, the valves needing adjustment on mine were intake valves on cylinders 1 and 3 and the exhaust valves on cylinder 2.
How often do you change intake valves on a Honda F23A?
The valve diameter remained the same as in F22A: 34 mm intake valves and 29 mm exhaust valves. The camshaft is rotated by the timing belt, and its replacement is required after every 60,000 miles. When the timing belt breaks, valves in the engine get bent. The valves are to be adjusted after every 25,000-30,000 miles.
Valve clearances for a cold engine are as follows: intake valves 0.23-0.27 mm, exhaust valves 0.27-0.33 mm. The firing order on this engine is 1-3-4-2.
Is it necessary to adjust intake valve on Honda Accord?
The intake valves do tend to loosen over time, and the exhaust valves tighten. If your intake valves are loose, the engine will sound quieter after the valves are adjusted. I did the valve adjustment myself at 94k miles. If I had to pay someone else to do it, I would probably still be waiting.
The valve diameter remained the same as in F22A: 34 mm intake valves and 29 mm exhaust valves. The camshaft is rotated by the timing belt, and its replacement is required after every 60,000 miles. When the timing belt breaks, valves in the engine get bent. The valves are to be adjusted after every 25,000-30,000 miles.
The ULEV F23A4 also has markings on the rear windows. F23A1: This engine was used in the 1998-2002 Honda Accord LX, EX, and SE, LEV models. The LX and EX engines produce less than 0.0075 grams per mile of non methane organic gas (NMOG), qualifying them for California LEV (Low-Emission Vehicle) status.