Fav 900
Engine / Cylinder head
Re-machining the valve seats
G
Repair
Fav 900 chassis number 23/3001and up
19.02.2001
2010
000011
G
a
2/3
Capitel
Docu-No.
Index
Date
Version
Page
Re-machining the valve seats
PM-Picturemodule
PM-Picturemodule
PM-Picturemodule
PMTAB_Picture
Release clamping lever, fit solenoid flange on
clamping plate, adjust the height to ensure the
cutter is clear of valve seat.
Set rocker switch at position 1.
Tighten clamping lever.
PMTAB_Picture
Re-machine valve seat by evenly turning the
crank handle in clockwise direction, this moving
the thurst nut at the same time.
Note:
Turn the crank firmly and evenly but never in
anticlockwise direction since this could cause
the carbide cutting edge to break out.
PMTAB_Picture
When the re-machining process is completed,
reduce working pressure of the cutter for a further
2-3 turns without thrust.
While still turning, reverse the thrust nut by
2-3-turns.
Switch into position 2 : to eliminate magnetic field.
Now pull the entire Mira-tool out and insert into the
next valve guide where the centering process is to
be repeated.
The cutter setting remains the same for all intake
exhaust valve seats.
