On 24/04/2021 11:47, T i m wrote:
On Sat, 24 Apr 2021 11:18:02 +0100, The Natural Philosopher
wrote:

snip

surely easier to simply replace piston and cylinder

'Surely', completely missing the point of this newsgroup ...?

'Surely' it would be 'easier' to get all the jobs many of us choose to
do ourselves, done by someone else, or to just buy new but it's not
the point.

Generally DIY is about cost where our time is free; where we gain
satisfaction from a job well done.

If the most cost-effective solution is to replace both, rather than
attempt a repair on a cylinder using tools and chemicals that aren't at
hand, then replacing both would be most prudent.