[Supras] camshaft bearing cap refitting

[berniek at technicaldevelop.com]

Tom:

    You are most welcome.  I've found the problem to occur with the best of synthetic oils over time.  The problem involves use of cross drilled journals, which appears to starve the rearmost ones for oil since oil is fed in at the front journal and is distributed through the hollow cams.  I understand the MKIV engines feed oil in through the center journal.

        BernieK
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Tom Metlar wrote:

>Went in to do my Valve shims and per Bernie's advice (THANK YOU
>BERNIE!!), tested the Cam journals as well and yep, the Cam Journals
>were worn out and sloppy.
>
>After cleaning them up and getting them back into spec it seems my
>timing belt got shredded as well.
>
>So I need a new timing belt, do I go with Toyota OEM or otherwise? Does
>it matter here? I have it down now and don't want to have to do this
>again for a LONG time. Anything else I should suggest to my mechanic to
>do while he is replacing this gasket?