4M50 Diesel Used Engine Heads For Excavator HD820V ME994590 Water
Cooling
Specification
| Item: Engine cylinder head |
| Engine Type: Diesel |
| Application: Excavator |
| Injection: Electric |
| valve: 16 valve |
| Cooling: Water Cooling |
| Number of Cylinders: 4 |
| Model: 4M50 |
Description
5 Things to Check Before Buying a Cylinder Head – Clearwater
Cylinder Head
Consider Intake and Exhaust Port Volumes – Bigger intake port
volumes are not always necessarily better; depending on engine size
and/or application, smaller intake ports may be more suitable.
Smaller intake ports often provide better performance for street
application as they produce more low-end torque and crisper
throttle response, while larger intake ports are more beneficial
for larger or higher-revving engines as they allow for more air
flow. Choose a good-flowing exhaust port that is the correct size,
by comparing to stock exhaust port volume and valve size for your
specific engine.
Determine the Combustion Chamber Size and Design needed for Your
Engine – Choose a combustion chamber size that raises the
compression ratio to maximize your engines efficiency, while
matching the components of your specific engine, such as, bore,
stroke, head gasket, and piston shape, as well as, deck clearance
and ring location.
Consider Application – Whether you are using your car for street or
off-road driving or drag, circle track, or road racing, deciding
the primary application for your engine is important is picking out
the cylinder head to best fit your needs. Valve lift, air flow, and
duration can be altered to provide the best performance for your
car’s specific application.
Can You Repair a Cracked Cylinder Head?
The cylinder head is a vital part of many internal combustion
engines. Along with a head gasket and rubber grommets, it seals the
cylinders of the engine, ensuring its fuel intake, combustion,
cooling and lubrication are all in working order.
One of the most important first steps in cylinder head repair is
determining what piece is damaged, as this could mean the
difference between a simple, decisive repair and a problem going
unnoticed, only to require even more costly repairs when that
problem worsens.
