RAF oil pressure gauge fix?

[Baldeagle]

Who can fix one of these??



with sender



Is there anybody on this side of the pond who can fix them?



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[DH82EH]

That looks just like the two I have on my Tiger moth.

I don't know about fixing it, but I'm sure Dave Watson at splitpin engineering would have a replacement for sale.

I doubt it would be outrageously expensive.

Hope this helps.

Andy

[DH82EH]

Hey Baldeagle,

Did you have any luck with this?

Andy

[Baldeagle]

Andy, got an NOS one from the Tiger Boys, solving the immediate need, although I still have an inop one as a spare, no need to fix it right away any more though-



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[myjet_71]

I had an oil pressure gauge out of my tiger moth I was restoring, that wasn't working. It was written in the log book as U/S, so I went looking and found one from Ireland. Once it was in the plane and finally had the engine running, it was reading low compared to the other one. Now I had two bad gauges.
With nothing to lose I took them apart thinking a blockage perhaps. At the pick-up end the nipple screws off, and the capillary will pull out. Looks like it might be soldered in. I used air pressure and cleaner to blow through it, so no blockage there.
Applying pressure from there to the gauge showed no movement of the needle. There is a small tube, the one in the picture has a few curls in it, but the tiger moth one didn't. It is the end of the capillary and is pinched off and soldered.
I used a soldering iron and melted the solder on the end of that capillary and added some air pressure at the other end simultaneously, and the needle then started moving with the different pressures. I then re-soldered the end to form a little drop, and put everything back together. I retested and the gauge seems to work fine. Why this fixed it, I don't really know. But it worked for both my gauges.

Attachments

[DH82EH]

Hi Doug!
Welcome to the forum.
Pretty neat fix.
What is the status of your Tiger project?

Andy Scott

[Spitty]

Some Brit stuff can be pretty archaic.The much vaunted Nose Up/Down gauge on the Spitfire runs off a Bowden (bike brake) cable that works against a spring in the mechanism that moves the needle.The elevator trim wheel has a spiral track machined in the back of it a pin moves in.