Steve Priest Posted December 10, 2020 Report Share Posted December 10, 2020 (edited) Hi all, I'm in the process of replacing the timing chain on my TR4. Bit of a learning curve as not something I've done before. After trawling through some very helpful information on this forum, I now understand how to set the cam timing correctly using the method in the workshop manual. I might also try the dial gauge on no.1 inlet method and compare the two. One thing I noticed when I removed the cam sprocket is the notches on the cam bearing, however I can't find any info on this. Are these timing marks? Or should I ignore them and carry on with my empirical approach? Thanks, Steve Edited December 10, 2020 by Steve Priest Quote Link to post Share on other sites
RogerH Posted December 10, 2020 Report Share Posted December 10, 2020 Hi Steve, I think those notches are for pulsing oil down the cam. The notches you need are on the two sprockets upon which the timing chain runs. The WSM explains how to use the timing chain sprockets to get it sorted. Roger Quote Link to post Share on other sites
Steve Priest Posted December 10, 2020 Author Report Share Posted December 10, 2020 Thanks Roger. That makes sense. My cam sprocket is marked but it's not a factory mark, so I'm going to check that it is correct. Steve Quote Link to post Share on other sites
RogerH Posted December 10, 2020 Report Share Posted December 10, 2020 Hi Steve, when you set up on #1 inlet valve make sure it is the second one along. I know an idiot that set up on the first rocker (#1 exhaust) Roger Quote Link to post Share on other sites
Lebro Posted December 10, 2020 Report Share Posted December 10, 2020 surely not ! Quote Link to post Share on other sites
RogerH Posted December 10, 2020 Report Share Posted December 10, 2020 I forgave him, as he is quite good looking. Roger Quote Link to post Share on other sites
Steve Priest Posted December 10, 2020 Author Report Share Posted December 10, 2020 Yes, your post was one that I read. Very helpful though. I'll do my best not to cock it up but no promises. Steve Quote Link to post Share on other sites
peejay4A Posted December 10, 2020 Report Share Posted December 10, 2020 29 minutes ago, RogerH said: I forgave him, as he is quite good looking. Roger Same here. Less good looking though. Quote Link to post Share on other sites
Ian Vincent Posted December 10, 2020 Report Share Posted December 10, 2020 I nearly did, spotted it just in time. Rgds Ian Quote Link to post Share on other sites
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