Rottler F103 Series, Installation Manual, Operation And Maintenance Manual

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Section 5 Operating Instructions F103/4/5A Manual
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5-4
Push fixture back into bore position. There is a guide block (502-1-105) attached to the bottom of the
fixture to aid in guiding the fixture along the support ways.
Operate the block clamp arms, bore, and pull fixture back to the load position.
Loosen locator bar hand screws and rotate clamps out of the way. Lift the block, either from the deck
surface or with the optional 502-1-95 block handler. Turn the block 180 degrees & reload to duplicate the
operation on the other bank.
After turning the engine block 180 degrees the locator bar must be twisted 180 degrees also. Again the
word ’UP’ must enter into the positioners facing up and away from the operator. (See figure 1).
Figure 1
502-1-82X main bearing locator bar indexes at point A. When bank is reversed and the bar is twisted 180
degrees, point A still indexes the main bearing.
Point C holds the block down. When bank is reversed and the bar is twisted 180 degrees, point B holds
the block down.
Figure 2
502-1-82X main bearing locator bar indexes near bearing split line. Point C does not contact the bearing
cap but rests on matched spacers that are provided to fit in the bar positioners slot. If there is a means of
holding the block down such as block clamp towers, this method may be used in large bores in order to
properly index near the bearing split line. If extreme care is used this method may be used to index blocks
without bearing caps attached. (Optional clamp down must be provided).