ok, this may have been covered but did a quick scan through the posts and couldn't see.
How / what is the best way to clean the engine bay / engine, for the typical guy at home.
i've heard of steam cleaning, low pressure washing, wrapping certain bits in plastic bags / cling film / alu foil.
my mum's husband even goes over his jags engine with some kind of turpentine and a reasonably small paint brush.

but for the 'amateur' at home who has access to a small Kärcher, buscket sponge, soap, brush. what is the best way.

What bits need covering. if anyone has the inclination to post a picture of an engine bay with said parts covered. would be most appreciative.

thanks - an owner with a clean polished body, but a filthy looking bay.

 

There is a good guide here Car Care Advice - How to safely clean and protect your engine bay
Also go easy on the inter cooler or put some card in it to protect the fins.

 

Here.
I did what advised convered alarm,alternator and took it easy near the intercooler and other electrical lumps...
Used Auto-glym clean machine,3 different brushes and then some super-sheen(not shown in the pics...
Some pics without the shiney and 1 treatment done...(ignore the strut brace I added it wasn't hidden under grime)

 

cheers for those. the link was in depth and seemed to tell that no worries for water + engine.
numpty question but where is the alternator, and do i need to cover the battery, terminal points are covered by rubber protectors, at least on the + terminal

cheers

 

I have forgotten how many times I have posted this link.....

Polished Swiss

That should sort you out. Battery terminals are fine if they have a rubber cover

 

well i've added it as a favourite, so if someone else asks the same query, i can post it on your behalf. ;-)
thanks a lot
Steve