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Old 01-13-2019, 07:29 PM   #1
Ilvmetal
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Default 16V B234 Cam timing, whats the cover marks?

Just pure curiosity, I've been using the markings on the timing cover for my TDC cam alignment marks which are at 12 o'clock.
Now i'm running without the cover and the notches on the valve cover appear to be 10 Deg off that 12 mark.
Any idea what the valve cover marks are for?

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Old 01-14-2019, 01:12 AM   #2
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As far as I know, they’re just to confuse you. Timing cover is what you need to go off of.
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Old 01-17-2019, 01:42 PM   #3
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Just did a measurement I think they line up the same as the one on the plastic timing belt cover
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Old 01-17-2019, 01:59 PM   #4
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I've always used them :shrug:
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Old 01-17-2019, 02:06 PM   #5
culberro
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Quote:
Originally Posted by linuxman51 View Post
I've always used them :shrug:
Using the valve cover marks, I had piston to valve issues with the bigger cams. Using the plastic timing cover marks they were fine. I ended up notching the pistons to clear at +/- 10deg @ crank no I'd have full range of the adjustable cam gears.
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Old 01-17-2019, 02:13 PM   #6
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which cams? were the pistons not flycut before?
I don't have adjustable gears for mine, I've run my junk straight up (or accidentally off a tooth :whooops: )
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Old 01-17-2019, 02:26 PM   #7
culberro
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Customs 16v hydraulic cams I had made, similar in spec to what YoshiFab sells now. The pistons were already cut for valve reliefs, but they needed about another 1.5-2.5mm

Last edited by culberro; 01-22-2019 at 12:47 PM..
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Old 01-22-2019, 11:09 AM   #8
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Quote:
Originally Posted by linuxman51 View Post
I've always used them :shrug:
I'm going with the shrug and will post my findings, pistons are cut so I will only be holding my breath slightly.......
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Old 01-23-2019, 09:27 AM   #9
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So does anybody make a timing tool for those who run without a cover, similar to the STS one for the 8v?
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Old 01-23-2019, 12:58 PM   #10
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Quote:
Originally Posted by J_pelchy View Post
So does anybody make a timing tool for those who run without a cover, similar to the STS one for the 8v?
Maybe he will make us one!! STS to the rescue.
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