Tores mailbox VIIC and VIIC/41 operation and technical details

[tore]

Simon.
It`s the nut on the top of the valvespindle as indicated on the picture below. May be you should add the lockingwire as well.
Tore

[tore]

Simon further to my last post. The u historia- Technica-Visita Guiada-Sala Diesel-Culata. The Culata photo shows the valvecage with coolingwaterpipes and valvespindle lubeoil pipeconnection and well as the valverockerpedestal (support) very clearly and would for sure help you.
Tore

Simon
Exhaust valve cage
I`m not sure I understand your exhaustcage drawing. Basically the cage looks like the drawing below ( the double spring is not relevant here). On the other photo of a valvecage is only the green part visible protruding out of the cylindercover top and has the coolingwater in and out connection.
Tore

[NZSnowman]

Simon.
It`s the nut on the top of the valvespindle as indicated on the picture below. May be you should add the lockingwire as well.
Tore

Thanks, Tore.

I was able to found one of the nuts and the split makes sense. I will update my drawing in the morning. How wide should the split, about 2-4 mm?

[tore]

Simon.
Further to my  above post, below is a picture of the actual connections on the valvecage.

[tore]

Simon.
It`s the nut on the top of the valvespindle as indicated on the picture below. May be you should add the lockingwire as well.
Tore

Simon
In locked position 2-4 mm would be OK I guess.
Tore

Thanks, Tore.

I was able to found one of the nuts and the split makes sense. I will update my drawing in the morning. How wide should the split, about 2-4 mm?

[NZSnowman]

Simon.
Further to my  above post, below is a picture of the actual connections on the valvecage.

Thanks, will be usefull as I am planning to draw this in the morning and was going to ask you about the pipes 

So just checking, the left is the Therm. and the right is a drain line?

(source: U-995 DVD http://www.uboataces.com/u995.shtml)

[tore]

Yes Simon, the blue pipe on the picture below is a dearation pipe which shall lead to the funnels seen on you picture  not the open air as on the photo. The outletpipe goes eventually to the common coolingwater discharge pipe from the engine I think outboard side.
Tore

[NZSnowman]

Tore, I found this very small line. I can only found it in this photo and can not found it on any plans.

• What is it for?
• Is it on each valve cage?
• Where does the line go?

(source: U-995 DVD http://www.uboataces.com/u995.shtml)

[NZSnowman]

Yes Simon, the blue pipe on the picture below is a dearation pipe which shall lead to the funnels seen on you picture  not the open air as on the photo. The outletpipe goes eventually to the common coolingwater discharge pipe from the engine I think outboard side.
Tore

Tore, does the pipe with the funnels just run into the bilge?

[NZSnowman]

Tore, how does this look?

[tore]

Tore, I found this very small line. I can only found it in this photo and can not found it on any plans.

• What is it for?
• Is it on each valve cage?
• Where does the line go?

(source: U-995 DVD http://www.uboataces.com/u995.shtml)

Simon I assume this is the inlet valvecage (no cooling) in that case the small pipe is probably the lubeoil pipe for the valvespindle and sit on every inletvalve like the previous shown pipe on the exhaustvalve sit on every exhaust valvecage.
Tore

[tore]

Yes Simon, the blue pipe on the picture below is a dearation pipe which shall lead to the funnels seen on you picture  not the open air as on the photo. The outletpipe goes eventually to the common coolingwater discharge pipe from the engine I think outboard side.
Tore

Tore, does the pipe with the funnels just run into the bilge?

Yes Simon I believe it end up in the bilge in the aft end bilge.
Tore

[tore]

Your new valvecages with pipes looks excellent, I believe you shall end up with a extraordinary enginetop.
Tore

[NZSnowman]

Tore, what are these two pipes? Its looks like the left are sensors and go to the overhead gauges.


(source: U-995 DVD http://www.uboataces.com/u995.shtml)

[tore]

Simon
Exhaustmanifold.
Below I have indicated the components your inquired. The seacooling water from the engine ends up into the exhaust manifold coolingcasing, with all the bends and pipes, air could easily be trapped causing problems with the coolingsystem, hence the rather extensive deairation, which ends up in a common funnel aft in the engineroom. On the systemsketch below the principle is shown, howewer as you see the practical solution differ slightly from the systemsketch.
 The other item is the wire for remote reading of the exhaust temperature, for each cylinder, hence 6 wires. The 6 analog rectangular meters is very dominating at the manuevering stand.
Tore