La San Marco 75 Export restore diary. - Page 2

Equipment doesn't work? Troubleshooting? If you're handy, members can help.
RuiReis

#11: Post by RuiReis »

truemagellen wrote:Seems like a lot to do now but honestly it's in great shape just dirty.

My encouragement to you is that La San Marco group is brilliant. You will be achieving paint like, heavenly shots over and over with little effort. It will become your favorite machine I bet.

If you want a bottomless portafilters for it Izzo sells a really nice one for their Leva with tight tolerances, I believe it should fit but check with them first to be safe.
Thank you the encouraging words. I have no doubt it will become my favourite... i only have the one advertised by Clooney :oops: :roll:

I will check the bottonless portafilter as i really will have one... those extractions are porn.

RuiReis

#12: Post by RuiReis »

Successfully made a piston disassembling tool.





I'm having difficulty with cleaning the oily residues.

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truemagellen

#13: Post by truemagellen »

Amazing how little has changed after all these years. Brilliant design

RuiReis

#14: Post by RuiReis »

Hi.

Busy days those last ones but achieved to dismantle her almost completely.


The boiler had the bolts completely seized, to avoid doing any irreversible damage i take her to an expertize...wich made such a sloppy job that i don't want talk about it. I know the man and it isn't is kind of work so don't know what happened.... maybe a bad day, sure my own fault to knock his door at a monday morning.



The parts are in a citric acid bath right now. In the rush i forgot to take photos but they had a lot of copper oxide and sulfide deposits. The citric acid really does work really good when warm as i have read but i don't have how to keep the bath warm and it's at environment temperature. It will take longer but i hope it will do his job.

Meanwhile i'm evaluating the parts to chrome, i wish tho take them all but i need to be money conscious.

RuiReis

#15: Post by RuiReis »

Hi ppl.

I'm having a really hard time cleaning the boiler from the copper oxide. I don't want to go the hard acid route but i don't think i'm able to do better...



Is this acceptable?

Thank you very much any input.

Rui

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truemagellen

#16: Post by truemagellen »

I think it is fine. If you want to clear it completely you can mechanically do so with sandpaper. Just make sure to clean thoroughly and remove sandpaper debris.

LObin

#17: Post by LObin »

I've used those soft brass brushes that fits on a hand drill when I cleaned the boiler of my Olympia Club. Along with a bit extension, they worked quite nicely.

LMWDP #592

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truemagellen

#18: Post by truemagellen » replying to LObin »

That is a great idea while also be the least chance of damaging while working the fastest, I wish I would have done that before. I would run a final descale afterwards as the brass in those brushes almost certainly contain lead.

RuiReis

#19: Post by RuiReis »

truemagellen wrote:I think it is fine. If you want to clear it completely you can mechanically do so with sandpaper. Just make sure to clean thoroughly and remove sandpaper debris.


Thank you. Never thought the sandpaper... I will try with it.
LObin wrote:I've used those soft brass brushes that fits on a hand drill when I cleaned the boiler of my Olympia Club. Along with a bit extension, they worked quite nicely.

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I already played with... in the shiny half, but some deposits still remain! I Have to get an extension to play in the narrows parts.

RuiReis

#20: Post by RuiReis »

truemagellen wrote:That is a great idea while also be the least chance of damaging while working the fastest, I wish I would have done that before. I would run a final descale afterwards as the brass in those brushes almost certainly contain lead.

Great tip!!! Thank you!