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      07-17-2026, 06:44 PM   #15
HDdave
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Drives: 03.5 M3 6mt, 08 M3 6mt
Join Date: Apr 2026
Location: Wilmington, NC

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Yeah I started the process following TIS exactly (idk why but took me quite a few times of reading through it to fully understand the "why am i doing it this way" behind the process.

What I find very interesting from that- TIS says you need to rotate each camshaft inwards towards eachother with an open end wrench, to allow the timing tools to fit. Well I didnt have to move anything at TDC for the intake cam on bank 1, exhaust cam I had to rotate to get everything flush.

Then I noticed when reading the procedure, you use both tdc and 10* while timing. So (and again this is my limited knowledge- just guessing from a common sense standpoint)- I kinda think someone tried to re-time this car for whatever reason, and didnt follow the instructions exactly.. Because the 10* mark makes sense when considering its a variable camshaft, so you need both marks on the crank- tighten both bolts at the exact right timing- THEN when you release the tools- the cams go to their pre (vtech just kicked in yo) positions, and are from there actuated based on oil pressure...? If I am wrong please someone correct me.. I honestly bought a cheap, broken one of these on purpose because i think rebuilding shit satisfys my mild undiagnosed 'tism haha.. So its important for me to understand the "why" of the situation more so than just follow these instrucions because youre supposed to...

lmk yalls thoughts
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