Basic Valve Job as published in BritishV8 Magazine, Volume XVII Issue 1, July 2009 by: Greg Myer. The head is one of the most important areas of an engine in terms of performance. A good valve job is critical for whatever you want out of your motor, whether it's better fuel economy, power, or just plain reliability.
Now you know that the cylinder head has to come off and be sent to a machine shop for inspection. So, What Does Or Should The Machine Shop Do For A Valve Job ? There is no such thing as a “standard” valve job anymore. Every valve job is different. An OHC head may require a lot more time and effort than a head off a pushrod engine.
Head, "Valve Job", when is it necessary? - Answer: A valve job is removing the cylinder head(s) from the engine so the valves, guides and seats can be refurbished to restore compression and oil control. A valve job may be necessary by the time an engine has 80,000 or more miles on it, or to fix a "burned valve," compression or oil burning problem.
a Valve Job? Cylinder Head Work to Restore compression, Increase Airflow and Oil Control. Pressure test/Vacuum test for leaks. Magnuflux for hairline cracks. Resurface/Mill head surface to restore surface. Bent valves, Bad guides and Dropped seats. 3 angle valve seat cutting for better sealing. Install Valve Stem Seals for better seal.
Get Your Valve Job Done Right The First Time. Valve jobs can make our break the ability of your engine to produce maximum horsepower. The end goal of a valve job is to improve the aerodynamics of a valve seat so that it can allow the most amount of air to travel through it without sacrifices. HeadGames has years of research and development with ...
A valve job is an operation which is performed on any four stroke cycle, internal combustion engine, the purpose of which is to resurface the mating surfaces of the poppet valves and their respective valve seats that control the intake and exhaust of the air/fuel mixture that powers the motion of the pistons after the start cycle.. In the earliest automotive engines, the valves needed to be ...
(19.)Once the valve seats in the heads are cut, attention is turned to the valves. Refacing the valves is the second half of a valve job. For a performance cylinder head job, new valves are always used; for a basic rebuild valve job, the valves are reused if within specs. These valves were in decent shape and only required refacing the seats.
A valve job includes removing the cylinder head and taking it to a machine shop where they grind new seats and grind the valves to match them so that they seal. If valves are leaking the engine will run roughly or lack power.
The average cost of a valve job is highly dependent on how many valves the car's engine has and what type of engine it is. A valve job for a 4-cylinder engine costs approximately $85 per valve repaired. The purpose of a valve job is to resurface the poppet valves and their seats, which control the flow of air and fuel to move the pistons.