*TM 9-2815-213-34
Figure 3-82. Pump to stand drive shaft engagement.
Blue represents size 1 (oversize). Standard size
diameter is 0.37460-0.37468 and oversize diameter is
0.37470-0.37478.
(2) If governor barrel is worn too large for the
oversize plunger, replace barrel by heating housing in
boiling water 112 to 2 minutes, and press out worn
governor barrel.
CAUTION
Remove spring dowel which secures barrel in
fuel pump, before attempting to remove
governor barrel. To pull spring dowel, insert
wire hook into hole provided in dowel and
remove.
(3) Check barrel bore in housing to determine
whether standard size barrel (fig. B-17)
can be used. Minimum 0.001 inch interference fit is
required.
(4) To locate a new governor barrel in the housing,
scribe a center line on barrel and housing, lining up the
fuel passages to prevent fuel flow restriction (fig. 3-85).
(5) Heat housing in oven to 300 degrees Fahrenheit.
(6) Cool barrel in dry ice or by another suitable
method.
(7) Coat new governor barrel with high pressure
lubricant.
(8) Place governor barrel in housing bore lining up
scribe marks, then press barrel into housing with arbor
press.
(9) Select new governor plunger and fit it in barrel. If
plunger enters try larger size plunger. If the larger size
plunger fits loosely in bore, replace barrel and plunger.
3-45