I've seen it being called different here and there, chain guide rail, or chain tensioner or...
I'll show a photo of what I mean, look at number #14 and #17:
Here is the upper rail, the smaller of the two, that was in my engine:
Not a pretty sight is it? I understand that one has to be replaced! Are there any aftermarket ones? I believe I saw someone post a link to a website in germany/netherlands that sold them?
Now the question I have is, the lower one, how do I know if it needs to be replaced or not? It's hard to see it all the way down but it is not even close to as bad as the smaller top one above. You can see marks but they arnt that bad. What do you think? Sorry for the bad picture:
I'm trying to figure out if I can mount my cylinder head and then mount the upper one when I get it in 3 days or so. Or if I have to replace the lower one as well, then I cant mount the head before I replace that one.
Thanks in advance, appreciate your help!