16-10-2020, 07:06 PM
(This post was last modified: 16-10-2020, 07:17 PM by Bob Culver.)
I ran a Javelin car for decades. These are notorious for water in the oil by a myriad pathways. Mayonaise in the filler was the first sign. Oil would turn khaki but a long run would boil the water out of the oil to the extent that the dipstick fell markedly and drained oil appeared perfectly normal. No apparent harm but no roller bearings.
At least the original crankcase ventilation should be maintained (With none at all oil tends to work past the return scrolls. )
My Seven had experienced a period of severe main bearing wear corres a lot of short running. I ran it with a vent at the filler and a pipe from the valve chest into the aircleaner . No further trouble but the running was much altered.
The scope for water leaks with a Seven is limited but the oil level should not rise much after long standing.
At least the original crankcase ventilation should be maintained (With none at all oil tends to work past the return scrolls. )
My Seven had experienced a period of severe main bearing wear corres a lot of short running. I ran it with a vent at the filler and a pipe from the valve chest into the aircleaner . No further trouble but the running was much altered.
The scope for water leaks with a Seven is limited but the oil level should not rise much after long standing.