0
They are not exposed to as much heat.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is the difference between blow off valves and waste gates?
the bov allows excess boost/pressure to out of the intake when the throttle body is closed. A wastegate is on the exhaust side and allows exhaust gas to bypass the turbocharger at high rpm, this reduces the restriction of airflow by the turbo.
How do you tappet adjustment of cat generator?
i adjusted tappet on cat engines by turning the engine first piston no.1 in TDC and check all (intake/exhaust) valves in close position,or follow maintenance guide book ,then check again when piston no.1 on exhaust stroke the same procedure be taken. or do it by turning the engine till the individual piston on TDC as perengine firing order and adjust both valves
How many valves are seen in 4 stroke Internal Combustion engine?
Minimum of one intake valve and one exhaust valve per cylinder. Beyond that many different combinations have been engineered. Please see the link.
Which of the following statements correctly describes the position of the intake and exhaust values during most of the power stage in a four cycle engine?
ClosedClosed.closedWhen the piston is at top dead center at the beginning of the power stroke both valves are closed, when the piston reaches dead bottom the exhaust valve opens up, when the piston reaches TDC again the intake valve opens, when the piston reaches dead bottom again both valves close to allow compression of the fuel, then at TDC the spark plug fires begins the power stroke again.They will be closed.
Can you really suck a valve if you run an engine with no exhaust?
Not sure what "suck a valve" means, but running an engine with no exhaust could easily cause the exhaust valves to get hot enough to melt. Exhaust valves get very hot and if you just shut off the engine with no exhaust manifold in place the cold air can cause an exhaust valve to warp, then,next time you run the engine it will not seat properly.Many people don't understand and assume that if ANY part of the exhaust system is missing you can warp a valve but that fear is just the result of failing to understand the root cause of the problem. On the other hand, a lean burning engine can overheat the valves to the point that the metal can become soft.
Why do intake valves last longer than exhaust valves?
Intake valves are cooled by the gasses passing through them, exhaust valves are heated by the gasses passing through them and can be burned by overheating.
Should the intake and exhaust valves be close when the?
Yes the intake and exhaust valves have to be close.
How do identify the intake and exhaust valves with the heads on the car?
Trace the runners. You can see the exhaust runners leading to the exhaust valves, and the intake runners leading to the intake valves.
What is the 2002 3.4 v6 impala push rod order?
The longer rods are for the exhaust valves and the shorter are for the intake valves.
Which valves are exhaust and which are intake valves on Honda 400ex?
Exhaust valves are always smaller.
On a Chevy 409 which valves are exhaust and which are intake?
The intake valves are bigger, and lead to the carburetor. the exhaust valves are smaller and lead to the manifolds or headers.
How do you tell the differ beween the intake and the exhaust valve when adjusting on a350 engine 1988 corvette?
The intake valves are in the intake ports, the exhaust valves are in the exhaust ports.
Where are EGR valves usually located?
Near the head, between the exhaust manifold and the intake.
How can the inlet and exhaust valve be identified on an assembled engine?
On a fully assembled engine, the intake and exhaust valves will not be visible. If the cylinder head is removed from the engine, the valves will then be visible. The intake valve faces are usually larger than those of the exhaust valves, and can be easily distinguished visually.
Trying to set the set valves on 350 which valve is the intake and which is the exhaust you have found tdc and set the 1 valves now what?
The intake valves line up with the intake runners on the intake manifold. The exhaust valves line up with the exhaust runners on the exhaust manifold or headers. With #1 at tdc you can set 1,2,5,7 intake and 1,3,4,8 exhaust valves. Rotate the engine one revolution to #6 tdc and set the remaining valves.
Which valve is exhaust and which valve is intake on 94 GM 350ci?
look at the head with the valve cover off find where the exhaust manifold goes in tha is the exhaust valve or looking at the valves the first one is exhaust then intake then intake ,exhaust,exhaust,intake,intake,exhaust if you have the head off i think the intake valves are bigger than the exhaust
What is Exhaust and intake valve?
As an air/fuel mixture is drawn into the intake ports, intake valves open to allow the mixture to enter the cylinder. On the exhaust stroke of an engine, the exhaust valves open, allowing the burned air/fuel mixture to exit out the exhaust ports. Intake valves are larger than exhaust valves, and are able to be found on the "cold" or intake side of the cylinder head(s).
