Hot rodding the HEI distributor
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==Rotor phasing== | ==Rotor phasing== | ||
*[http://www.msdignition.com/uploadedFiles/MSDIgnitioncom/Support/frm28392_tech_bulletin_rotor_phasing.pdf Checking and correcting rotor phasing] from MSD | *[http://www.msdignition.com/uploadedFiles/MSDIgnitioncom/Support/frm28392_tech_bulletin_rotor_phasing.pdf Checking and correcting rotor phasing] from MSD | ||
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| + | ==Distributor gear== | ||
| + | [[File:Dist worn gear.jpg|thumb|400px||Improper lubruication, high loads from high pressure/volume oil pump, and thick motor oil can all add to excessive distributor (and cam) gear wear]] | ||
| + | The correct gear material/treatment has to match the type of camshaft being used. | ||
| + | *Steel cams require a bronze or plastic composite gear. | ||
| + | *Other cams require a mellonized distributor gear. | ||
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| + | ===Lubrication=== | ||
| + | Besides using moly break in lube on the cam and distributor gears, a small groove on the lower band on a Chevy distributor body will allow pressurized oil to reach the gears. This is beneficial because the gears are lubed by splash only. | ||
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| + | According to [http://www.circletrack.com/techarticles/ctrp_0606_proper_distributor_installation_practices/viewall.html#ixzz2GRyrZhDi Crane]: <blockquote>The bottom of a Chevrolet distributor housing can be modified to spray pressurized oil onto the distributor drive gear. The extra lubrication will reduce distributor gear and camshaft gear wear. This is especially important when the gear is used to drive non-standard accessories, such as a high-volume oil pump or a magneto that puts additional loads on it and the cam. Simply file a small vertical groove 0.030" wide by 0.030" deep on the bottom machined band, immediately above the gear. This can be accomplished by using the side edge of a mill bastard or triangular file. Pressurized oil running between the two bands will be directed downward onto both the gear and the cam.</blockquote> | ||
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| + | On a Pontiac V8, the oil galley plug adjacent to the distributor gear can be carefully drilled with a small numbered bit to direct pressurized oil to the gears. | ||
==Holley idle transfer slot== | ==Holley idle transfer slot== | ||
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