Pagoda SL Group
W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: richard230sl on November 18, 2024, 19:15:43
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I have been reading the posts about the camshaft timing with great interest.
My head was decked very slightly, and I installed a new chain.
I now discovered that with the standard woodruff, the camshaft is about 4,5 degrees late (about 9 degrees at the crankshaft)
In posts of Dan and Joe (thanks!) I am reading that correcting this is described in some BBB as being not important, but I also read that it could cost compression and with it HP.
So in order to check if I understood the posts and in order to check what to do best:
Can I leave the cam at 9 degrees late (looking at the markings at the cam and crank)?
Or is the compression loss for my case considerable and can I better correct it with a stepped woodruff?
If its not needed: that's great!
And if a stepped woodruff is recommended: what is the best way to determine the degrees of offset:
My idea would be to order a 4 degree offset woodruff and check if the valve is at least 1mm down and touches the piston at 5 degrees (crank) atdc
Do I understand it correctly that the markings will then still indicate that the timing is 9 degrees late (the sprockets would stay in their same position in the chain, but the camshaft will turn 4 degrees clockwise inside the sprocket thanks to the offset woodruff)
Thanks for your thoughts!
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I wouldn't worry about it; just make sure you leave the cam trailing not leading the crank in terms of timing.
Many years ago I built race engines and would spend hours fussing over details like this but it never made the slightest perceptible difference.
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hi
been there did that 20 years ago when metric motors rebuilt the motor in my 230 sl,
after following the procedure in the bbb i left everything the way it was