Hi
I am planning on performing timing chain maintenance which will include gears, rails, chain etc. Car is 1991 318is (12/1990 build), engine has 146K miles. Since M42 cam gears are NLA, only way I might be able to get them would be if someone had a spare pair and would be willing to sell them. There are lots of posts out here, some saying that cam gears need to be replaced every time you perform timing chain maintenance, others state that it depends on the condition of gears. Since gears are NLA, this becomes a bit of a problem. I have taken valve cover off to inspect the gears. I would like someone to take a look at the pics and give me their opinion if I should hold off with maintenance until I find a pair of new gears or if my gears still look OK, and I could go head with timing chain maintenance. I am attaching a link to a post that has some info about cams wear.
https://www.r3vlimited.com/board/for...ears-nla/page5
Thank you in advance for your help
I am planning on performing timing chain maintenance which will include gears, rails, chain etc. Car is 1991 318is (12/1990 build), engine has 146K miles. Since M42 cam gears are NLA, only way I might be able to get them would be if someone had a spare pair and would be willing to sell them. There are lots of posts out here, some saying that cam gears need to be replaced every time you perform timing chain maintenance, others state that it depends on the condition of gears. Since gears are NLA, this becomes a bit of a problem. I have taken valve cover off to inspect the gears. I would like someone to take a look at the pics and give me their opinion if I should hold off with maintenance until I find a pair of new gears or if my gears still look OK, and I could go head with timing chain maintenance. I am attaching a link to a post that has some info about cams wear.
https://www.r3vlimited.com/board/for...ears-nla/page5
Thank you in advance for your help
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