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thank god i found this my car wouldn't start because this piece wasn't working! thank you!

I couldn't get the sensor out from behind the engine, but swiftly realised I could do the job in place, just with it pulled out and angled up. This probably saved me a lot of effort, particularly with the reinstallation, because I could just poke the tabs with a screwdriver and try again. Loosening the top bolts (so many thanks to the person who commented to do this!) was what really swung it though.

Great video; very helpful. Shop note; use plastic implements to manipulate O-rings and other seals to avoid scratching sealing surfaces.

Tip: If the CAS is getting stuck/jammed often when trying to take it out or in, loosen the two 12mm bolts above the hole! You will need to remove the black bracket holding the spark plug wires that's right above one of them. It should be easy to move after that. You should NOT need to use crazy amounts of pressure to put it in.

There is an indentation on one of the splines of the cas sensor. If your having trouble lining it up to the cam. It's because you haven't lined up the small grove allowing the cas to go fully in with no issue. There should be absolutely no resistance when installing a new cas.

Thanks for the vid! I thought I was in trouble because I couldn't get the old o-ring to budge. I found a tiny flat head, started to pry it, and it cracked in half instantly. Absolutely no play in the o-ring it was literally solid plastic!

Thanks for the recording ...did mine today, with the cam cover on...(I replaced that gasket when I did the timing belt/waterpump etc.. didn't want to mess with it.. it was not leaking at all. I could not get the CAS our from behind the engine, so I used a plastic interior panel tool and easy broke the decomposing "O" ring off, and put the new one on without bringing the sensor out from behind the engine... a little tricky, put got her done... Those two keys on the CAS are almost the same, and hard to see which cam cut out matches with a mirror... one is about a half a mm wider... Seeing that after a bit the orientation was easier, and got it pretty quick... It looked more apparent on your recording? Incidentally I removed the engine pick bracket, and still couldn't clear firewall and the back of the engine, to get the CAS out?? Got ii replaced ions pipe of the hick-up, and she was leaking. The old ring had a flat spot all the way around from all they years, and broke easily when I pulled on it... Hopefully this is the end of the leaks... as least for now... Differential is weaping a little, maybe I'll tackle that next. Of course I got blood on it... never doing anything without blood...

Fantastic video. Simple, clear and well explained!

Awesome! That's exactly what I need! Thanks a lot, man!

Loosening the two bolts on top of where the sensor mounts makes this such an easy install. I found this out after a couple hours trying to get it back into the hole.

Good job. I will be taking off the cams to replace the valve stem seals. Should I wait to replace the whole unit after I put the cam shaft back in?

I wonder if this issue fixes my current problem which is going extremely slow on first gear and then having to rev up to pick up some speed. Never knew about this part as I’m not a mechanic. Thanks for this video!

Nice one, something to watch our for the future.

With just removing the 3 wiring connectors and loosening the lift mount, it would NOT come out from behind the engine. Dunno if some 1.6's are different? or some CAS units are shorter? but in the video when he gets the CAS out, there's a gap between the flange and I had NO gap. I already had the valve cover off, so I just removed the two bolts from the piece that holds the CAS in and removed it, then reapplied some high temp silicone gasket maker and put it all back.

I have a issue I can’t line the marks up and get the bolt in, the slot that makes it so u can adjust the timing is covering the hole for the bolt. The bolt felt tight when I originally got it out never was able to undo it with my fingers but nothing is cross threaded it can go in just won’t be in time what should I do? A friend is coming over with a timing light but is away for a few weeks so I’m stuck atm

Awesome thank you

My car only leaks when on lol, is this a likely fix?

I gave you a like as you said finagling, awesome word.

thank you

One of the first things I had to do on my car, never expected it to be this hard seeing all the vids about it, especially since I physically couldnt get the CAS out of the engine bay. Biggest pain in the ass out of all the maintenance I did.

Dont Forget to put a little bit of oil on CAS to avoid struggling ! It helps to find right position with the CAM

One bolt?

Hey man, pretty new to cars here but I’ve been breaking bolts left and right on my 1995, I’m from ct so the rust can be pretty bad. Should I be worried about breaking the 12mm on the cas? Should I spray it with wd40 first? I’m just not trying to dig a deeper hole for myself

Got mine to do and the cam cover

I can’t get it back in! I gave up for the night. Your vid shows all of the correct strips, but I was not anticipating several hours attempting to get it lined up for reinsertion. I have even tried using my phones front camera to visualize real time, but I still couldn’t get it in. And last tips before I have it towed?

My miata is having a oil leak too and I assume this is the leak, hopefully this will fix it cuz im not too sure where it's coming from haha

I spent about an hour trying to get it out, but there was not nearly enough space to pull the sensor out 😂 I guess that leak is there to stay 😂

I have a 1999 1.8nb, is the same proces? Thanks

Will it fit flush if the teeth don’t line up? I feel like I got it lined up and in the same position.

You have to remove the CAS in order to remove the intake cam (I was removing the cams in order to pull and clean the valve lifters), however I wasn't aware scribing was necessary. Now what? Shoot for a middle position? Piston #1 is at TDC because I'm also replacing the timing belt. Is it possible for the two "notches" to be 180 degrees off?

Perfect timing

Can excessive oil leaking over time damage the sensor or cause it to malfunction?

Who's Zach?

What if you forget to mark where they lined up before you took it off because of stupidity