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Oil pressures
Matt21 - 25/3/15 at 03:09 PM

This may be a pointless post but... seems as I have never had an oil pressure gauge in a car before, I'm unsure what I should be expecting.

Engine is a 99 cbr900

upon starting the engine, the pressure builds to around 20-30psi
when driving at first it sits around 70psi
after 20-30mins driving its gradually dropped to 30psi (I assume as the oil warms and thins)
when at idle, 10psi
I also had the engine off for a couple of minutes then fired it back up and got around 60psi before it tailed off again to ~30

do these pressures seem normal?

I'm pretty paranoid as I really cant be bothered redoing the engine again!

thanks

[Edited on 25/3/15 by Matt21]


Jon Ison - 25/3/15 at 03:51 PM

Sounds ok to me, I was initially alarmed when I discovered how low oil pressure is on a hot bike engine at idle, the digi dash programmers where obviously aware of this as you can programme the oil pressure alarm not to alarm below a certain number of revs if that makes any sense ?


Matt21 - 25/3/15 at 04:22 PM

ok thanks, that puts my mind at rest a bit

Anyone got an idea of what the hot running temp should be?