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Member postings for P84R

Here is a list of all the postings P84R has made in our forums. Click on a thread name to jump to the thread.

Thread: Regulator improvements
18/07/2019 00:17:27

Very interesting! I like that one. Very simple but effective.

I have various sized and shaped grips and forceps from years of fiddling with motorcycle engines so I'm hoping to be able to grip it through the safety valve bush and try to thread it out somehow..... if I manage I'll post it here, although that might not be for a few weeks yet as I would do that in the workshop while I have it apart.

17/07/2019 20:23:31

Upon quick inspection there has been nothing blocking the passages or anything wrong with the water gauges but I will remove everything over the weekend hopefully to thoroughly check.

Sometimes the valves lift and sometimes they don't, this doesn't seem to change the effect on the regulator though and the valves have never primed on any incline or otherwise. It does make me wonder what's going on with the valves not priming although they are only sitting around 1/4" above the tube in question.

Yes I have witnessed hydraulic lock and it's not a pretty sight! I'm getting close to stripping the whole loco down for an overhaul anyway which is why I'm trying to come up with ideas to try and solve this while I have it in pieces.

17/07/2019 19:40:28

I'm not entirely sure as I haven't removed the regulator block yet. But I'm sure it can be made removable!

Interesting..... worth trying out. Thanks

16/07/2019 22:23:03

Werner. The water around us isn't too bad but certainly something to keep in mind.

Duncan. Yes the pipe is just under the safety valve bushings so I know that is still there. The idea of a ball valve could be a good one..... even though the regulator tube is only around 1/2" below the top of the boiler it sucks water quite easily however the safety valves have never primed in the same situation!

Paul. The boiler is relatively clean, descaled once a year in addition to being blown down most times and given a rinse through from time to time. I can understand it picking up water if it was being thrashed but it doesn't have to be thrashed for this to occur. Worth a watch.

16/07/2019 16:51:37

I had thought of that before but I'm limited to the size of baffle due to the hole for the regulator body. But it may be worth trying out.

The feed tube for the regulator has 5 holes drilled in the top so should only allow steam to enter from the top anyway in theory

16/07/2019 10:55:14

Hi all! I have a sweet pea loco and could do with picking some brains about an issue I'm having.......

When I open the regulator up it admits water to the cylinders and up the chimney, this is more noticeable on an incline where the water is obviously towards the backhead. It's fine with a little regulator, but when climbing it could do with a bit more without swallowing the water.

I don't run with the boiler full so it's not that, I can't run with the water much lower or when I get to the downhill the crown will be dry. The regulator is to the drawings and tucked up to the top of the boiler.

Short of making another boiler with a dome I'm running out of ideas to alleviate this problem.

Any advice greatly recieved!

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