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Showing results for tags 'cam'.
Found 3 results
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From the album: 49 P15C off frame restomod
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Curious about this. Why did L6 mopar cams change from 1" to 1 1/8 " ?
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I'm doing a total rebuild of my 218 engine. The engine is completely disassembled except for the cam bearings. Before I remove them, I thought it would be a good idea to measure both the existing cam shaft journals and cam bearing inside diameters to see what the clearances are. (The #4 bearing is cast into the block and is not replaceable so I'm not including it in the discussion.) I found some things that surprised me: Q1. The #1 and #3 bearing and journal sizes were different by a whopping .064 (not .0064). Shouldn't the #1, #2, and #3 bearings and journals be almost identical in size? Q2. Measuring bearing inside diameters is not easy. I used an inexpensive Chinese telescoping gauge along with a top notch Starett micrometer for the measurements, but getting consistent readings using telescoping gauges was hard to do. Using the telescoping gauge, consecutive readings of the same bearing often differed by anywhere from zero to .002 or even .003. What's the best method of measuring cam bearing diameters? Has anyone else had trouble with making these measurements. Q3: How can I order the correct size replacement bearings when I have these crazy differences in sizes between the three bearings and journals? Should I just replace the cam and all the bearings in order to obtain consistent sizes and clearances among the three?
