WAslayer
Honorary Master
I'm not a Corsa owner, but have seen neighbours struggling with theirs. Modern engines are so compact that they are hard to work on, without removing something first (like the front wheel). Those old Corsa engines have a known issue with the spline on the belt pulley, and if that goes while driving, the consequential damage means its cheaper to replace with a second hand engine. Just my 0.02 cents worth...
Used to work for an engineering company specialising in overhauling engines etc.. When these engines snap a cambelt, you can kiss your valves and pistons goodbye.. They have probably the most dainty valves I have seen in an engine, not including the 12 or 16 valved engines..
We had to quite a lot of people bring in their engines to have the valves as and or pistons replaced when this happened.. this was in 2009 and I have no idea what engineering work costs these days compared to price of engines..