When I start the engine, it takes like forever (40 seconds) for the pressure to come up to about 60. When I shut it down it takes the same time to come down to 0.

Let me say at this time that it is an electric gauge and sending unit.

I got a sending unit from auto parts store and hooked it to shop air with regulator set for 50 PSI. Removed wire from sending unit on engine and installed it on auto parts sending unit.

Turned on shop air set at 50 and it took lake forever for gauge to come up to 50. Disconnected shop air and gage took like forever to come down.

So as you can see, gage is gunny sack. Anybody out there have a good used oil pressure gage for a C182B (electric). That is a 1959. Or is there any way to fix the gage.

Tim

Had similar problem with my old International Havester Scouts
"We Race Farm Equipment"

Turns out that the problem is most likely in the SLLOOWW response of the sending unit. Most lectric guages respond quite quickly to inputs.

Went to a "wet" guage system and all is well with the old Scout

Might just try and install a "wet" pressure guage from same auto parts store into the engine, only for a test. This should give you the answer, which most likely will be that the engine oil system is ok, just that the lectric sender sucks in resoponse time.

Hopefully

Chris c.

The Cessna fix is about 750 plus the labor. They want me to change the guage and sender or maybe it is a wet guage.

Tim

If it works and is accurate, what is there to fix? I ask because if it is in the cluster of gauges like the later Cessna's, it ain't cheap.

It works but it takes so darn long to come up. What I am worried about is when the gage finally craps out and decides to just stay at zero when I start the plane, do I just run the engine and think "it will come up any time now".

If I am in Big Creek (that is where all the action usually is) and the gauge totaly fails do I just fly home confident that I have plenty of oil pressure? Do not think so. I want the gauge to follow what the pressure is accually doing.

IF I DID FLY HOME I WOULD NOT POST IT ON THIS FORUM, I WOULD POST IT ON BCAH FORUM THOUGH

Tim

qmdv wrote:IF I DID FLY HOME I WOULD NOT POST IT ON THIS FORUM, I WOULD POST IT ON BCAH FORUM THOUGH

Tim

No, don't post it at all. I have a friend with a 210 that has a bum cyl head temp gauge, but he doesn't worry about it because his analyzer gives him digital temps on all six cylinders. There are several TSO'd oil pressure instruments, I believe. Just that "six pack" of gauges ain't cheap. Take the money to fix the six pack and put it in an analyzer that gives oil temp and pressure digitally. I think some of them are STC'd as primary instruments as well.

a64pilot wrote: Take the money to fix the six pack and put it in an analyzer that gives oil temp and pressure digitally. I think some of them are STC'd as primary instruments as well.

You are probably right. Just looked this one up. http://www.buy-ei.com/Pages/UBG/UBG-16_Overview.html

If the FAR/AIM expert is out there lurking he can let me know if this is a good fix.

Tim

That's the one my friend has.
On another note, I'm sure he is lurking, but I think he has been identified and I don't expect to hear from him.