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Good evening,
a question for the 6.0 specialists here: the bearings of the camshaft have small cutouts. Are these for a assembly tool to orient the bearing shells so that they are perfectly positioned to the lubrication hole in the block? If so, does anyone have a part number for the tool?
It's listed in the International service manual, Hartwig, and expensive I made up my own tool, in my cam video. I did it with washers, but with your lathe you should be able to machine one up. However, as Razzi just found out, those OE bushings are rolled and interlocked, so if there is any side loading or catching on the edge, the bushings turn into pretzels. I was able to get them in - carefully. The Mahle bushings are one piece and are more robust getting them in, you can even hammer with a drive tool. I've been using a screw jack to get cam bushings in for a long time, I prefer it.
Notice in your images the chamfer for installing the bushings. If you mark the OD of the bushing where the oil port is, you can get it in properly indexed.
Jack, do you know if the Mahle bushings also have these cutouts as in the first picture?
Of course I will build the appropriate tools myself. What I don't know is whether these cutouts serve the position orientation, so that the opening for the lubrication holes of bearing and block exactly match.
On this engine the bushings are still usable (62k on it), but for future work on other engines I will make tools. I do not want to hammer the bushings in, I will pull them in with a long threaded rod.
The question that arises for me is, what are these cutouts for?
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