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TECHNICAL ADVICE - BRAND SPECIFIC
Compiled from comments and suggestions from a number of our clients and our own experience. Ford 200, 250 Crossflow Head 1976-87  Camshaft Identification
Early non cross flow camshafts had a groove in the rear journal and must not be used in cross flow head applications.
Distributor gear wear.
The mechancial and electronic distributors used in these engines have different shaft sizes. The distributor used in your engine must have 0.003" to 0.004" clearance between shaft and block. Please check to ensure that your distributor shaft has the correct clearance in the block. Electronic distributors cannot be used in early blocks without bushing the block to suit the smaller distributor shaft.
High volume oil pumps are not recommended in these engines as the increase in load may cause premature failure of the distributor gear, especially if used with heavy weight oil.
Misalignment Problem
Some late XE and early XF blocks may have a misalignment problem with the distributor recess in the engine block. If in doubt, blue the gears and check the mesh. If the contact marking on the distributor drive gear of the camshaft comes close to the edge of the gear teeth a 0.030" chamfer may be required on the top of the teeth on the camshaft to avoid a shearing action on the sharp edges of the gears. The chamfer can be applied using a die grinder.
Many new Falcon camshafts already have this chamfer on their gear teeth.
Driven gear
When fitting this camshaft it is strongly recommended that it be installed with one of our specially developed driven gears. These have been specifically machined to address the misalignment problem. Mesh should still be carefully checked however as set out above.
Springs and Retainers
The standard springs and retainers in these engines are not suitable for non standard applications and must be replaced to ensure valve train reliability.
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