Tores mailbox VIIC and VIIC/41 operation and technical details

[tore]

Simon
Luboil 3 atu.
A very convincing photo. I cannot explain why the Roots blower has a higher luboil pressure, but I guess it would be on all the lubricating point of the blower not only the forward rotary vane bearings. Below I have marked the relevant luboil pipeinlets which I assume is then connected to the violet 3 atu luboilpipe.
Tore

[NZSnowman]

Lines for measuring instruments for LO Filter (Violet - Black - Violet)

[NZSnowman]

Piping around the torsional vibration damper cover - finish

Also fix the piping for the air starting system.

[tore]

Simon.
The pipes for the differential oilfilter manometer are placed where they should be. To me they look a bit larger than the impression I had, they do not deliver any oil like the pipe to the servo, just static pressure.  I believe they were small copperpipes.
Tore

[NZSnowman]

Floor cover & torsional vibration damper cover

[NZSnowman]

Simon.
The pipes for the differential oilfilter manometer are placed where they should be. To me they look a bit larger than the impression I had, they do not deliver any oil like the pipe to the servo, just static pressure.  I believe they were small copperpipes.
Tore

In the drawing they are 20 mm - steel, should I change them to 15 mm copper?

[tore]

Simon.
Your pipes around the torsional vibration damper seems OK to me . The spilloff pipe from the pressure reducing valve has the right dimension and about the same as the manometerpipes should have.
Tore

[tore]

Simon.
I just had a look at your manometerpipe for the supercharger manometer and I guess that would be about the right dimension.
Tore

[NZSnowman]

Tore, do these small pipes like like copper or steel?

Also the nuts are bronze

[NZSnowman]

Simon.
I just had a look at your manometerpipe for the supercharger manometer and I guess that would be about the right dimension.
Tore

Yes, that one is 15 mm. I will change my other pipes.

Tore, do you think all the 15 mm pipe would be copper?

[tore]

Simon.
If you look at the photos from U-995, the way they are bend and those which are broken or disconnected I would assume they are copperpipes.
Tore

[NZSnowman]

Simon.
If you look at the photos from U-995, the way they are bend and those which are broken or disconnected I would assume they are copperpipes.
Tore

Thanks Tore. I will update my drawing tomorrow.

[tore]

Simon.
I guess the nuts and cocks of the 15 mm pipes are all brass. The luboil filter differential manometer has two inlets and cocks for the pipes in and out of the filter. See photo below.

[NZSnowman]

Tore, I was thinking about other smaller lines.

Do you think these small lines on the engine would also be copper?

[tore]

Simon.
Yes I believe all the 15 mm pipes most probably are copper and the cocks and couplings brass.
Tore