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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Sat, Aug-26-2017, 11:58:42 PM   #1
JitteryJoe
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Default Sanity check - Cam spocket

Sprocket, not spocket. Cam blocks are in. Crank is at TDC. Does this exhaust sprocket look correct?
Never done this. Don't want to make a ruinous mistake!
Thanks,
Joe

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Old Sun, Aug-27-2017, 01:14:44 AM   #2
Braymond141
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Default Re: Sanity check - Cam spocket

For repeatability sake you want the arrows lined up with head valve cover surface with piston 1 at TDC. You are 180 degrees out (the sprocket, not necessarily your bottom end).
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Old Sun, Aug-27-2017, 01:17:31 AM   #3
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Default Re: Sanity check - Cam spocket

Like this.

Please remember to use the air tools to set the exhaust sprocket position (the VANOS sprocket you're yet to install). DO NOT set it by hand like DrV and other guides suggest. I can guarantee you will get it wrong, and it is the wrong (more often than not) way to do it.
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Old Sun, Aug-27-2017, 06:36:30 PM   #4
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Default Re: Sanity check - Cam spocket

Got it. Thanks!
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Old Mon, Aug-28-2017, 05:02:39 PM   #5
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Default Re: Sanity check - Cam spocket

I did it the doctor vanos way on my last car...will be buying the air setup next time
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Old Mon, Aug-28-2017, 05:53:26 PM   #6
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Default Re: Sanity check - Cam spocket

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Originally Posted by englishtom1596q View Post
I did it the doctor vanos way on my last car...will be buying the air setup next time
I got all the timing chains installed (all new). I'll be tackling the Vanos next weekend. I have the air adapter. Just need to find a good set DIY instructions. I may have to reach out for help

I also have to make sure there is no piston/valve interference with the 11:1 pistons and non-stock cam (Epic sport).
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Old Mon, Aug-28-2017, 06:16:54 PM   #7
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Default Re: Sanity check - Cam spocket

I made an air adapter years ago with a hose barb fitting and piece of hose. Used a salvaged female connector with wire leads for the solenoid trigger. But honestly, I have used it only a few times and typically set up by sight. I should check my last timing job since apparently by sight is not very accurate. It just seems to me that lining up the arrow with the head surface is pretty simple and engaging the first tooth is pretty straightforward. I have played around with trying to fine tune before and never felt like I got any closer to perfect.
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Old Mon, Aug-28-2017, 07:19:20 PM   #8
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Default Re: Sanity check - Cam spocket

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Originally Posted by pbonsalb View Post
I made an air adapter years ago with a hose barb fitting and piece of hose. Used a salvaged female connector with wire leads for the solenoid trigger. But honestly, I have used it only a few times and typically set up by sight. I should check my last timing job since apparently by sight is not very accurate. It just seems to me that lining up the arrow with the head surface is pretty simple and engaging the first tooth is pretty straightforward. I have played around with trying to fine tune before and never felt like I got any closer to perfect.
The issue is locking the exhaust sprocket down after vanos install is hit or miss when done by hand. Yes it can be done but there is a better way that doesn’t involve too much more to do. Nobody likes pulling the valve cover they just installed for a VANOS mechanically jammed error.
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Old Tue, Aug-29-2017, 12:50:07 PM   #9
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Default Re: Sanity check - Cam spocket

I don't even use the dummy tensioner tool. I use my finger. I have played around with that as well and lining the arrow up is easy. I think the dummy tensioner tool is useful if you have an old tensioner with a weak spring or that has drained down or you don't want to put your finger in the hole to take up the chain slack until the arrow lines up. Does this method cause issues also?
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Old Tue, Aug-29-2017, 04:02:42 PM   #10
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Default Re: Sanity check - Cam spocket

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Originally Posted by pbonsalb View Post
I don't even use the dummy tensioner tool. I use my finger. I have played around with that as well and lining the arrow up is easy. I think the dummy tensioner tool is useful if you have an old tensioner with a weak spring or that has drained down or you don't want to put your finger in the hole to take up the chain slack until the arrow lines up. Does this method cause issues also?
I have the chain tensioner tool and a torque driver that can be set to the 11 inch lbs. tension spec. 11 inch lbs is quite a bit of force on the chain. I'm not sure how you replicate with your finger.
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Discussing Sanity check - Cam spocket in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)