What do you need to know about a control valve positioner?
Every control valve positioner must be equipped with some means to sense the position of the valve’s stem, otherwise the positioner could not compare the valve stem’s position against the command signal.
When do you switch to an adjustable valvetrain?
If we switch to solid lifters it is mandatory that we convert to an adjustable valvetrain (I would also say that converting to adjustable valvetrain is mandatory in ALL racing applications as well as any application where we want to have accurate control of our valve lash setting). Not doing so is asking for serious problems!
How to adjust intake valve with full valve lift?
Adjust #7 Intake Valve with #3 cylinder Intake Valve at full valve lift …. Adjust #2 Intake Valve with #6 cylinder Intake Valve at full valve lift …. Adjust #1 Intake Valve with #5 cylinder Intake Valve at full valve lift ….
How to reduce maintenance time for control valve?
Place control valve in operation in accordance with the operating instructions provided with controller or other operating device. To reduce maintenance time refer to proper drawing and follow the steps shown below for applicable maintenance. 1. Renewing packing set (See Below Fig. 1~4):
When do you need to do a valve job?
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…
What do you do when you adjust a valve?
When you adjust a valve, you’re not adjusting the valve itself but compensating for that wear, letting the valve open and close as efficiently as possible. Most modern engines use self-adjusting, oil-pressure-driven “hydraulic lifters.”
If we switch to solid lifters it is mandatory that we convert to an adjustable valvetrain (I would also say that converting to adjustable valvetrain is mandatory in ALL racing applications as well as any application where we want to have accurate control of our valve lash setting). Not doing so is asking for serious problems!
When is it necessary to replace a valve head?
The spring retainers, keepers and other hardware is likewise inspected. Any worn or damaged components are replaced. New valve guide seals are always used. The valves are then installed in the head and shimmed to restore proper valve height. This is necessary because machining the valves and seat alters their dimensions.