[TR] TR4 Spin On Oil Filter
John Macartney
standardtriumph at btinternet.com
Fri Feb 13 16:08:13 MST 2009
Randall wrote:
> Are you sure you didn't read that it should NOT have a bypass valve?
> An anti-drainback valve might possibly allow slightly faster oil pressure
> buildup at engine startup; but since the filter is angled downward, the
> effect will be small (if any). The original filter setup had no
> anti-drainback valve. And if anything, the anti-drainback would reduce
> pressure in the galleries while the engine is running, since it takes some
> small pressure to push it open.
My sentiments entirely. This also extends to the (IMHO) entirely useless additional oil feed to the
rocker shaft - unless of course racing people prefer that for their particular purposes.
Jonmac
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