
2591418
2591438
3026174
3-132
Engine Tools
Cylinder Head, Valves and Cam Followers
Valve Seat Drivers
Model: 3406E Engines
Warranty: Six Months
• Usedtoinstallvalveseatinserts
• Servesasguideforproperalignmentofinsertduringinstallation
• Knurled handle for better grip (zinc coated for corrosion resistance)
Reference
SENR6421, Special Instruction
Part Number Description Overall Length
Major Outside
Diameter
9U-6897 ValveSeatDriver
(Inlet)
254 mm (10 in) 47.4 mm (1.87 in)
9U-6898 ValveSeatDriver
(Exhaust)
254 mm (10 in) 42.5 mm (1.67 in)
8T-0859 Valve Seat Depth Gauge
Model: 1100, 3100, 3200
Warranty: Six Months
• Usedtoquicklydeterminevalve
seat depth on cylinder heads
• During cylinder head recondition-
ing,valveseatfacesusuallygrind
movingfaceofvalveseatdeeper
intocylinderhead;asmaterialis
removedfromseatface,valvestem
length on spring side of cylinder
head increases, reducing distance
valvespringiscompressedandat
sametimereducingspringload;
with use of straight edge across
topofvalveguide,gaugesused
todetermineifvalveseatdepthis
within limits
Reference
SMHS8319, Special Instruction
Part Number Detail
8T-0859 Gauge, 25,000 kPa
(36000 psi)
393-0369 Valve Guide Stop Collar
Model Usage: C4.4
Warranty: Six Months
• Usedtoinstallthevalveguidestothecorrectheight12.7mm(.50in)abovethe
spring seat on the cylinder head
• Protectsvalveguidesduringinstallation
Specications
Dimensions 25.5 x 30 mm (1.0 x 1.18 in)
Material Steel