Those pressure readings sound OK to me. I would permanently mount a
good gauge IMHO.
Joe
Coquina
On 8/5/2018 5:33 AM, SEAN CONNER via CnC-List wrote:
I was able to get an oil pressure gauge and install it temporarily on
the 3GM30F. I definitely have oil pressure, but it was interesting to
see the results. I enclosed some vid links in case anyone was
interested in hearing/seeing these results. At 2500 rpm immediately
after start up the pressure bounced between 40-50 psi.
https://youtu.be/Ym6CBjTXG0Q.
At 3000 rpms after 15 min run time, the pressure held steady at 62
psi. https://youtu.be/vy_7_X626Yo
When backing down throttle to ~800 rpm the pressure bounced around at
20 psi. https://youtu.be/PPxDKUXHUL8
According to the yanmar service manual, pressure at idle should be 7.2
psi and at 3,500 rpm should be 42-57 psi. Not sure what the results
actually mean, but I at least know there is pressure and have some
form of baseline measurements to assess.
Sean Conner/Ladyhawke
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_______________________________________________
Thanks everyone for supporting this list with your contributions. Each and
every one is greatly appreciated. If you want to support the list - use PayPal
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