Britsh 25 PDR. Field Gun & Quad Gun Tractor

[Graeme C.]

Hi Steve, Just had a read through from the start, impressive detailing & scratchery.
The airbrush problems could be water drawn in from the atmosphere getting into the water trap & down the tube to the airbrush. There should be a valve on the bottom of the water trap to release it, or just turn the pressure valve to blow it out, I've had the same problem. Adjusting the pressure or the thinning of the paint may fix the paint problems, just have to experiment with it.

[Steve Jones]

Thank you all for your help with the airbrush. This is where I am at the moment.

Firstly the rear was opened up and cleaned out. The whole of the outside of the compressor was then cleaned thoroughly.

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The pressure valve was taken out and a cloth inserted inside to clean out the reservoir but it was dry

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Next I cleaned out the hose and there was a bit of water here. So I took off the old hose and put on a new one. No matter what pressure it was on the air flow was not consistent out of the airbrush end of the hose. It was like a constant putt putt putt putt. Dont know if it is supposed to be like this

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I tried Vallejo and Badger acrylics in the airbrush. I also tried .5mm and .3mm needles. I also tried a variety of pressures. However what ever I did the result was the same. Paint splatters to start with then into a cloudy line which turns more into dot dot dash with the irregular airflow and then more blow outs.

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Any other ideas would be greatly appreciated but I am thinking the compressor is knackered

Steve

[BigGreg]

... it looks like there is water in your air tubing..... maybe there is a leak ??

[Fernando N]

Just caught up Steve and the scratchery is fantastic, love the springs.:smiling::thumb2:

Sorry to read about the compressor problems, I'm no expert either but judging by your observations maybe the shut off valve is malfunctioning or it might be the motor...
Looks you have a membrane compressor, maybe many times of usage near the time-limit of running it have worn down the motor.
Have had the same many years ago with a basic Revell compressor...

Maybe take it to a repair shop?

[Si Benson]

Steve, check your email mate:smiling4:

[Steve Jones]

Thanks again everyone. Si is the main man and has provided me with this link link that showed me how to strip the compressor down and clean it out. Top man. Many thanks:thumb2::thumb2::thumb2::thumb2::thumb2:. I now have no issues and greater control on the air pressure as well. This is how it was done

I took off the top of the compressor and it was full of crap so this was cleaned out with a brush and a cloth

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The next plate was cleaned off. The silicone plug was very carefully lifted up and the crap and holes underneath were completely cleaned out

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Under this plate was a small plate. As you can see it is slightly bent up. It should be flat covering the hole underneath. The black housing around this large valve was taken out and cleaned thoroughly as well

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So the plate was removed cleaned, turned over and screwed back. The whole thing was then reassembled. I am not very good at this sort of stuff but it was very easy so if I can do it anyone can

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Here are the results. No blow outs and a lot better control. I just need to mess around with needles and pressures to get those fine lines perfect

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The strength of the forum has shown through today. Thank you to everyone for your help and support

Steve

[Allen Dewire]

Top news Stevie!!! I guess you picked the right day to give up sniffing glue. I hope the probs are gone for good.....

[scottie3158]

I will have to look at mine as well I get similar problems.

[Si Benson]

Really glad that sorted your problem:smiling4: credit to the youtubers sharing their experience.

I’ve been a machine technician since I turned 18 (43 now), deal with all sorts of breakdowns and spend a lot of time fault finding on pneumatic control systems, steam pressure controls, vacuum systems etc....I don’t profess to know everything but I do know a spec of dirt in the wrong place or a dry seal can disable a state of the art £500,000 machine in seconds!

Again I’m glad your sorted....looking forward to seeing some paint flying soon:thumb2:

[JR]

Well done young Si.
Personally I'd have.....…...
yes you guessed it set fire to the b****y thing.
I can see every one now stripping down their compressors. Glad the compressor is working again.
There is one thing you should do Dr Rivet, and that is to get a " Catch All apron ". This seasons must have for all modellers. I myself use one and it had saved me countless hrs of examining the floor. Great work Steve, how on earth you do it is beyond me. :thumb2::thumb2::thumb2:
John.

[Steve Jones]

Pete/Si - Many thanks again guys for all your help with the compressor issues
Its starting to take its toll now Dave. I will be glad when its done and I can move on
Your dead right Mick. A change is as good as a rest
Cheers Allen. It does take up a lot of time but worth it in the end
Thanks for the support Graeme. I appreciate it mate
Just needed a good clean in the end Greg but thanks for posting mate
Its my second lot of springs that I have done now Fernando. Still a few things to learn. Mainly the over gluing as this is an issue.
Never realised they got this dirty Scottie. As Si says one speck of dirt can fowl up a whole machine.
I have a white sheet on the floor that gets most things JR. However recently things are bouncing which isnt in the rules and making bits harder to find:smiling5:

[BigGreg]

By the way l completely forgot to tell you that your aging process is WONDERFUL... more...more...more

[Steve Jones]

Me personally or the model??:smiling3::smiling5:

[BigGreg]

ahahhahahaahahha.. the model of course...ahahhahahahah (sorry i had to be more specific)

[Steve Jones]

:smiling5::smiling3::thumb2: Thanks for the support mate