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Optimizing the SOHC Ignition (1455 words) |
 | These points are best because they're made the best: the pivots have the least slop, the steel bracket is the stoutest and flattest, and the contacts are the most resistant to burning. |
| There are of course several aftermarket point assemblies available to fit the SOHC Four, among them Mitsubishi and Diachi, but Honda never used these inferior products as original equipment on the Fours. |
| Their poorly stamped, light gauge, rounded backs cause them to change timing when the screws are tightened, their springs are not as firm, and their insulating washers are flimsy. |
| OHV, OHC, SOHC and DOHC (twin cam) engine - Automotive illustrated glossary (341 words) |
| OHC in general means OverHead Cam while SOHC means Single OverHead Cam. |
| In the SOHC engine the camshaft is installed in the cylinder head and valves are operated either by the rocker arms or directly through the lifters (as in the picture). |
| The advantage is that valves are operated almost directly by the camshaft - easy to achieve the perfect timing at high rpm. |
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