Hello and welcome to the forum. A lot of expertise here both aircooled and watercooled versions, so you are in safe hands. It would be advisable to spend time going through the different sections particularly the "Fiat 126 Chat" area. Select the area and do a search to find out if your query has been covered, otherwise, just start a new thread. Check out the Fiat 126 links and reputable companies for 126 suppliers. Post some pics of your 126 please!