3

As a priority - Checking and replacing worn ball joints is far more important than replacing worn bushes. If a ball joint separates while driving, then you will loose steering, which is obviously very dangerous. If the steering doesn’t feel smooth and there is free play in the steering, I would seriously get the ball joints checked before using the vehicle. ...


2

Unless the fasteners are made from stainless steel, which yours are likely not since you said that the have rust on them, then they will have some kind of anti-corrosion coating. This coating could be zinc or they could be electro plated For example read - https://www.bhamfast.com/electroplating-fasteners/ It would therefore be unwise to sand them down ...


1

I tried many normal household products to clean engines and parts... And for 1 off then petrol, thinners etc may work, but the best solution by far was to take my disassembled engine block, heads, crank etc to the local machine shop and then put it in their washing machine. The parts come out like new except now you can see the wear marks and scoring etc. ...


1

I personally wouldn't bother with this if parts are available and inexpensive because it's a lot of work for little benefit, however I respect your motivation to reuse and learn at the same time. The first step is to make sure they are clean, your plan seems sound on that. Make absolutely sure all loose paint is off, I'd be tempted to strip them completely ...


1

I would get some cold-galvanizing paint as a base and then whichever satin black is in stock at my local hardware store.


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