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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5-8
Retrofitting 502-1-15C Parallels to V6/V8 Combination Fixture
(Special Applications)
Some engine blocks with large main bores (3-1/8” and larger) cause a problem of the locator bar
bottoming out in the bar positioners and/or the V-shaped relief’s of the 502-3-8B V-block frame before
clamping the block properly. Mounting the 502-1-15C parallel set as shown below in place of the V-block
frame will provide proper clearance for clamping. Older style fixtures and parallels can be modified to this
configuration using illustrations below.
V-6 blocks with one-piece ‘caged’ main bearing caps (all caps are connected) can interfere with 502-3-8B
V-block frame. The parallel arrangement shown below will allow proper support and clamping of these
blocks.