Robert, Graham et All
If you think about it oil is the life of the engine. If there is a lack of oil
then the engine gets no lubrication and then everything gets lock jaw so to
speak.
Every vehicle needs to have the filter primed before installation after an oil
change. If the filter is not primed then there is a few seconds before the
filter is fill from the pump. While the filter is filling the oil is not being
pumped to the bearings, oil pressure at the bearings is zero. Over a period of
time this will affect the bearing clearances a llitle bit and begin to lower
oil pressure. So the best thing to do is prime the filter. I learned this
almost fifty years ago from my uncle who worked for Fram. I know a whole lot
of poeple don't prime filters because its a lot of trouble and sometimes messy,
but it really needs to be done.
On BN1/BN2 it is easy because the filter is verticle unless there is a
modification and a modern cartridge filter has been adapted. Even with a
cartridge there is not a big mess to clean up. On the BN4 to BJ8 where the
filter housing is horziontal take the whole thing loose from the block, change
filter, prime, replace housing, then attach everything back on the block, no
mess no fuss maybe 5 minutes longer for an oil change.
One last thing don't let the oil pan drain and then the last thing you do at
the end of the oil change is replace the drain plug and fill the pan with oil.
Drain the pan and when the oil begins to drip rather than run out, replace the
plug and then go ahead and refill the pan with oil. This way there is less
chance of the oil pump being drained and oil will be pick up immediately when
the engine is restarted after an oil change. Again doing everything to reduce
the possibility of engine bearing damage even if it is ever so slight. Over a
period of time all small things add up.
Just my humble opion.
Jerry
BN2
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