49179 - 00451 Engine Turbo Charger 5I - 5015 Excavator Engine Parts

49179 - 00451 Engine Turbo Turbocharger 5I - 5015 Excavator Part

Specifiions

Specifiions:

Part Number 49179-00451

OE number 5I8018, 5I-8018, 2797860, 279-7860

Description Earth Moving 320C L, 320BL-Excavator

CHRA 49179-08600 (316402)(5I7589, 5I-7589)

Engine 3066T

Fuel Diesel

S6K

Excavator: 320B, 320B L, 320B LL, 320B LU, 320B N, 320B U, 320C, 320D LRR, 320D RR, 321B, 321C, 320C, 320C L, 320D, 320D L, 323D L, 323D LN, 323D S

S/N MAB1-UP, PAB1-UP, MAE1-UP, GAD224-UP, 7JK1-UP, 7JK60000-UP, MAE1-UP, 7JK55000-99999, 7JK1-UP, 7JK60000-99999

Recommend Excavator Turbochargers

Characteristic

When the driver lifts his foot off the throttle pedal, the intake throttle plate on the engine closes. At this point the turbocharger is still spinning and creating boost. Since the throttle valve is closed, the boost has nowhere to escape except back into the compressor leading to a moment of instability known as surge.

Surge can be damaging to turbochargers as this rapid oscillation in pressure can quickly threaten bearing systems. To prevent this, a CBV or BOV is inserted into the system. When the user lifts his foot off the throttle pedal, the vacuum in the intake manifold actuates a valve which re-routes the post turbo compressor air back into the intake (as in a CBV system) or vents the pressurized air to atmosphere (as in a BOV system).

Due to lack of vacuum in a diesel system, CBV/BOV’s are not typically applied. However, there are now companies in the aftermarket offering electronic CBV/BOV which picks up a signal from the throttle-position sensor.