Compressor repair..

[Skeety]

Hi All,

Finally got round to fixing a compressor I bought off here ages ago. All was going well until I tried removing the old manifold which needed replacing. Essentially it snapped off, a couple of questions for you all please:

Any suggestions for removing the alloy portition from the steel reservoir? Picture may not show it but some sort of red sealant seems to have been used. Been thinking heat with some sort of stud extractor but though i'd ask here first

Pic here: https://www.dropbox.com/sh/9ehjb3ikij57 ... c_3Ra?dl=0

Do you know what thread it will be as it may be easier to cut it off, get a new bit of tube with the correct thread then cut off the current part and weld a new one on.

Cheers,

Jon.

 

[Hot stuff]

If it's loctite type sealant that's been used then heat should soften it enough to let you tap it round with a punch or similar. Might require a hefty "tap" to start it off.
Failing that, a hacksaw blade down the inside from both sides then smack it in on itself. The threads on the new part should be sufficient to clean everything up and ptfe tape will seal it fine.

 

[Skeety]

Cheers

Went with heat and a baby cold chisel, was only using MAP gas and the alloy started to melt! Was concentrating around the outside too! Came out easily. Now to give the thread a clean and clean the tank out

Jon.

 

[Hot stuff]

Good man, fingers crossed for the rest of the job.

 

[Skeety]

Final bits arrived today from Amazon to finish the electrics (ring crimps for the earth) as the replacement pressure switch didn't make allowance for it

Anyway, had never heard it run before i bought it and its been sat outside for 3-4 years under a cover.

Finally having replaced the manifold, pressure guages, pipework for the pressure switch, fitted new connectors etc. tonight was the moment of truth. It fired up for a second and then stopped Electrics hadn't tripped. More than 100% happy with the wiring and had inspected everything...

Except the plug when I borrowed it still had a 3A fuse in it. After changing the fuse it runs perfectly, comes up to pressure quickly and doesn't make any noises it shouldn't. Couple of minor air leaks that were quickly sorted with a quick nip. One remains on the manifold thread but only losing about 1PSI per 10 mins.

Overall well worth the time and money spent. Great compressor for £30 including all the bits to repair

 

[Hot stuff]

eBay pressure switch and gauges?

 

[Skeety]

Got them from Amazon, definitely of chinese origin.

There were tiny marker holes for where the earth should go but was easier to use ring terminals onto the mounting screws for the pressure switch as opposed to drill and tap the pressure switch.

Final clean now done and time for the covers re-fitting. Ran it outside for an hour today without issues and got the rest of the moisture out of the reservoir. FRL completely dry. Not going to be painting with it.

Jon.

 

[Hot stuff]

I think they're all pretty much Chinese nowadays, the one I've got on my wee compressor cost £13 posted from China. I was a bit nervous the first time I used it, torn between keeping an eye on the gauge and hiding from the whole thing. It's been on for a year nowthough, used loads and still working fine.