Improved Racing EGM-502 Manual de usuario
REAR OIL GALLEY PLUG “BARBELL”
FOR GM LT SERIES ENGINES
PART NO. EGM-502
MADE IN USA
For contact information, visit www.improvedracing.com
Copyright © 2008-2020 Improved Racing Products, LLC. All rights reserved.
Rev 042120
Important: Read these instructions in their
entirety prior to installation.
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2
APPLICATIONS
• All Gen V GM EcoTec / LT / Vortec family engines
SCHEMATIC & PARTS LIST
2
1
3
Figure 1 - EGM-502 Schematic
Item Qty Part Number Description
1 1 EGM-502-01 Rear Oil Galley Plug “Barbell” for Gen V GM V8s
2 1 HRG-1024 Front O-ring for Plug
3 1 HRG-1027 Rear O-ring for Plug
TECHNICAL SPECIFICATIONS
Maximum Operating
Temperature 400°F (204°C)
Minimum Operating
Temperature -22°F (-30°C)
EGM-502 Info CNC-Machined 6061-T6 Billet Aluminum, M4x0.7 Thread
HRG-1024 Info AS568 Dash Size -111 FKM (Viton Rubber), 75A
HRG-1027 Info AS568 Dash Size -112 FKM (Viton Rubber), 75A
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BEFORE YOU BEGIN
Thisproductshouldonlybeinstalledbyaqualiedmechanic.
Improperinstallationcouldresultinsevereenginedamage.
Lubricate O-rings prior to installation to prevent damage and ensure a
leak-free seal.
INSTALLATION INSTRUCTIONS
The rear engine cover must be removed to install this product. It is criti-
cal that the instructions, tightening sequences and corresponding torque
values detailed in the GM factory service manual for the engine be fol-
lowed during removal and reinstallation of the rear engine cover.
1. UseaatpryingtooltoremovetheOEMplasticplugfromtheleftrear
oil galley of the engine block (see Figure 2 for hole location).
2. Inspect the inside of the oil galley for dirt and debris and clean if neces-
sary.
Debris left in the oil galley may damage the O-rings and prevent a proper
seal.
3. Generously slather assembly lube onto both O-rings.
O-ringswillbedamagediftheyarenotlubricatedpriortoinstallation.
4. Carefully insert the plug into the rear oil galley shown in Figure 2.
Theplugisinstalledcorrectlywhentherearoftheplugisushwiththe
engine block sealing surface for rear the timing cover.
Any M4x0.7 screw can be threaded into the rear of EGM-502 for more
control during insertion.
Iftheplugisdifculttoinsertduringinstallation,removeitandinspect
boththeoilgalleyandplugforpossibleinterferenceissues.
InspecttheO-ringsfordamagepriortoreinstallation.Donotreuse
damagedO-rings.
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4
Contact Customer Serviceiftheplugdoesnotinstallush.
Figure 2 - Rear galley plug installation
5.
Carefully follow the instructions, tightening sequences and the corre-
sponding torque values detailed in the GM factory service manual to
reinstall the rear engine cover and any other components that were
removed.
Installation is now complete. Thank you for purchasing an Improved Racing
product!
REMOVING EGM-502 FROM YOUR ENGINE
EGM-502 features a M4x0.7 screw thread at the rear of the plug for easy
part removal.
Pull the plug out after threading any M4x0.7 screw into the plug.
Always inspect both O-rings for damage and compression set after
removingtheplug.
ReplacealldamagedorcompressedO-ringsbeforereinstallation.
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