Rb20 Cas Issue

[SLT513]

Hello,

Recently I changed my head gasket on my motor and my friend decided to help me do so. He took off my CAS for god knows what reason and we discovered the halfmoon from the exhaust camshaft inside the CAS it had been broken off from the camshaft you can also see where the halfmoon used to be before it snapped. The cas still works fine we spun it around while turning the car on and the injectors are ticking, however when we try putting the CAS back on the car will not start.

Could someone tell me what I need to do to get it working again?

Do I keep trying to align the CAS and hope for it to work or do I need to buy another camshaft?

Thanks

[89CAL]

Just keep turning the CAS till it runs then check with a timing light. If you don't put bolts in the CAS then it will only take a minute or two to work out the right spot then as I said check with a timing light

[SLT513]

you mean turning the cas while its plugged in where it connects to the ex cam?

[jiffo]

As Cal said, it's not too difficult.

You can see up the end of the camshaft with a torch, so rotate the crank until the remains of the half moon are in a convenient spot, horizontal, vertical, whatever.

Then turn the CAS drive to match and offer it up.

With luck it will go straight in, but just leave the 3-setscrews out, connect her up and start the engine.

Timing light will tell you if the CAS is central (approx) in the slots and if she's not, you know how much it has to move and in which direction.

But can you tell if the broken half moon is an old break or recent?

You don't want that bit of metal down inside the cam belt cover.