While doing domestics today (cleaning up the yard in preparation for my year away) I passed the local bearing shop. A quick visit resulted in two of these being purchased.
Whilst there is a range of debates about what variation of the bearing should be fitted (shielded, shielded one side or open) I feel an open race is best. No real reason but when looking at the caged bearing race - it clearly isn't going to allow free flowing oil to pass completely from the cam side to the timing chain side. There is a gallery that allows this anyway, so I will go with my gut feeling on this. The only time I have specifically sought shielded bearings was when building my CNC machine and that was to keep everything out of the race. Here's the standard versus the roller bearing.
The original alloy bearing is thicker with a machined recess for the retaining clip. The roller bearing is the same width as the recessed area.
Finally a few shots of the assembly - noting that this is not the reconditioned head - I am just playing!
Finally a few shots of the assembly - noting that this is not the reconditioned head - I am just playing!
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