[TR] TR3 Cam Bearing Question

[Greg Gelhar]

The retaining bolt hole is most important. It will line up the other holes. Note that the oil holes in the block are not drilled on the cam bearing centers. This is most noticeable at the rear bearing where the extra hole feeds the valve rocker shaft. Push a thin wire into the oil holes to prove the holes are not covered before installing the cam.
The oil going to the head is metered by the camshaft. When you spin the oil pump before starting the engine you might not see oil at the rocker shaft until you turn the crankshaft a bit.

Greg G.
Osseo, MN

T-Mobile. Americabs First Nationwide 4G Network

William Brewer <wsb1960tr3a at att.net> wrote:

>     I was installing the forward cam bearing (of the three bearing shells)
>and the holes don't seem to line up. The hole for the oil gallery and the hole
>for the keeper bolt seem to be in line on the center of the block, but the
>holes in the bearing are not in line. The elongated hole for the keeper bolt
>is in the center, but the oil gallery hole is off center. 
>     There are two
>big bearings and one small one in the cam bearing set. The small one goes in
>the center obviously. The two big bearings are identical, so the forward one
>ends up with an extra hole in it (the small hole).
>     Am I missing
>something? I tried reversing the bearing but that didn't seem to work either.
>I can making the gallery hole match up but then the keeper bolt doesn't line
>up. I could drill or file it out to make it fit.
>     Maybe I shouldn't be
>working on the engine late at night when I am tired...
>
>     TIA,
>
>     Bill
>Brewer
>
>** triumphs at autox.team.net **
>
>Donate: http://www.team.net/donate.html
>Archive: http://www.team.net/archive
>Forums: http://www.team.net/forums
>Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/greg@gelhar.com