Present were: Keith Bulmer, Gareth Broughton, Robin Fransham, Paul Johnson, Oli Smith, Keith Wright, Mark Hallett, Andy Pix, Andy’s Dad David, Graham Miles, Jane Bibey, John Hooson, John Hooson’s son-in-law.
Friday evening
Batteries put on charge ready for the numerous start ups required for testing of systems during the weekend
Sat am
Started her up, but she was missing slightly – the lads down there have got accustomed to this sign of fuel starvation and shut her down immediately. She was manually filled with 500 litres of Diesel ( which was recorded in the repair book). Both fuel rails were bled and a restart made.
Platform side radiator elements – 9 removed and replaced with tested elements from the 20′ container.
We tested some of the removed elements and found them ok (which would indicate the original leak was possibly from the top joint – and running down).
Coach side compressor – removed and dismantled. One of the valves was found to have 2 screws missing, this valve was replaced. In addition it was noticed that some of the pipework was mis-aligned- possibly due to the mix and match nature of the making up of two compressors from 4. The leftover parts from the mix and match exercise were tried and one was found to give a better fit. The compressor was rebuilt and refitted to the loco.
What a difference – the compressor does not knock anymore, and the air builds much quicker than previously, in fact we took the opportunity to test the main safety valve which blew off at a tad over the 11.8 Bar specified- it also closed around 8 Bar which was slightly different from the specified figure but not by much.
Sunday
Started the power unit, but air pressure stopped building at about 3.5 bar- Gareth found the parking brake interlock valve sticking again- this same valve had caused a problem previously and had to be stripped and cleaned out.
The work continued on putting the 9 radiator elements back and the engine was started to test there were no leaks.
At this point a knocking sound was heard and traced to B3 fuel pump, which had stuck in. Investigation with the fuel pump cover off and the engine running showed oil/water being pumped back up the cylinder head drain holes and spraying over the fuel pump. The sticky mess resulted in the fuel pump plunger sticking. The tappet cover was removed and the drain holes were found to be full of gunky oily mess. B4 was removed and water spilled out and a similar oily mess was present.
Mark Hallett was asked to come and give his opinion and the conclusion is the drain pipe needs to be thoroughly cleaned out. Keith Wright and Oli Smith have been shown what to do, and will carry this out next time they are at Dereham. Until this work is done and checked the engine will not be started.
Robin went around the underframe and greased up all the brake rigging, and equalising beams, as well as all the electrical machines (blowers/TM’’s incl Cannon tubes).
During this work Chris Cheney had a look at the tyres and use of the tyre gauge confirmed we have decent profiles on the tyres (which still have turning marks on them showing they were turned shortly prior to withdrawal).
The tab washer on the traction centre needs bending over and brazing in place (I will add to the job sheet).
The two roof hatches on the coach side were opened up with a view to trying to seal them up as a temporary measure. Given the news that Sean is delivering the tarpaulins this Saturday, Gareth and I agreed to leave this work until we can do it properly.
I did, however move and fit missing bodyside filter elements to the louvres nearest the starter motors. A number of filters have been removed and not refitted (including the one in the free end turbo intake ducting – presumably after Carl’s repair – this has been fitted now to ensure we are sucking filtered air into the engine!).
Gareth and I were chuffed (9466!!) with the achievements over the weekend.
Good progress, but it is obvious we need a full set of seals for both the D&M system and the Westinghouse parking brake system. (the PB Interlock valve and one of the brake system governor (pressure switches) gave problems over the weekend).
We have a D&M manual which Gareth and Robin are going to look at . I am trying to find a Westinghouse manual so we can do the same on the PB system.
Very positive weekend but a few warning signs that whilst we have been making good progress there are still a number of components/valves/switches which have only just started to wake up after 8 years out of use- some are waking up nicely and some are a bit groggy and need a bit of attention.
Hope this encourages everyone to the same degree it encouraged me and Gareth.
In addition Andy Pix and his dad David turned up and made a welcome contribution on the radiator element exchanges/testing.
On Sunday John Hooson and his son-in-law Alan came down and dropped of some manuals obtained from the guy who owns 37254. We were about to start her up anyway so it was nice to let John press the button. Gareth showed them around the loco and they went away quite happy.