Thread: Td5 timing guide missing a chunk, how hard to replace?

Found a 1cm chunk from the top of the timing chain tensioner when I dropped my sump. Would like to replace them especially as I've got the engine and crank pulley off. RAVE only has instructions for doing the chain with the head off, was hoping I could just remove the timing cover. Can I do that without upsetting the head gasket?

Thanks definitely wanted to do it (parts are on their way) just was worried about having to take the head of.