Oil Pressure Gauge Troubleshooting

Remove the hose and see if you can look thru it.

"Kyle Boatright" wrote in message
. ..

"Cy Galley" wrote in message
news:lFh5f.442882$x96.137443@attbi_s72...
Is the hose clear? Sounds almost like you have a check valve in the line.
Did you make up the hose by putting on ends? If you made the hose or had
it made to length, there is a possibility that a "donut" has been cut
out of the hose side wall making a flapper valve. Happens when someone
doesn't use a mandrel.
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Cy Galley - Chair,
AirVenture Emergency Aircraft Repair
A Service Project of Chapter 75
EAA Safety Programs Editor - TC
EAA Sport Pilot


The hose was from a mail-order racing parts supplier (Summit Racing,
IIRC).. It is one of their stock lengths. No idea if they use mandrels or
not.

KB