For cleaning the site glass I have had good results in soaking it overnight in a 50/50 mixture of water and bleach. For cleaning rusty bolts,nuts and washers, I put them in a plastic container and cover them with Real Lemon juice, let them soak for a few days and all of the rust comes off. It works on larger parts also if you have a big enough container to put them in and a lot of lemon juice. (lol)Takes about a gallon for a manifold. Have alos put the lemon juice in a spray bottle and sprayed frozen bolts over a few day period and has worked sometimes. Barry
