Timing tabs and damper TDC lines SBC
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m (→The three most common locations for the timing mark on the damper) |
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The exact years of the type of damper timing marks overlap one another, depending on the exact application. | The exact years of the type of damper timing marks overlap one another, depending on the exact application. | ||
| − | + | #The pre-1969 damper has the TDC line on the outer ring at the 2:30 o’clock position- or 2º before the keyway centerline- i.e. the line is to the LEFT of the keyway, looking at the front of the damper or engine. The keyway is seen in the ID of the damper nose. | |
| − | + | #The damper used from 1969 to about 1984 has the TDC line at the 2 o’clock position- or 10º before the keyway. You'll find that aftermarket dampers are the 10º type, as are the bolt-on tabs sold by the aftermarket, unless they're adjustable. | |
| − | + | #A third timing mark was used from (some) 1978 to about 1995, and nearly all 1984-1995. It is at the 12 o’clock position- or 40º before the keyway. This damper uses a timing cover that has the tab welded on at about the 12 o'clock position. Professional Products lists the years for this type damper line as being 1984-1995 and is a 6-3/4” diameter damper. | |
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==Relocating the damper line== | ==Relocating the damper line== | ||
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