My2006TLgetsAllMy$

I just did a timing belt change. Not sure why but the rear cam shaft has compression. It has too. I put the belt back on and tried to hand turn it just to check it. It did not go so well. How much damage could I have done? What can I do to make it right. Something has to be out pf time. As soon as I took the belt off, the rear camshaft sprung backwards if that helps to explain anything.

zeta

iTrader: (1)

Did you removed the spark plugs prior to performing the TB replacement?

My2006TLgetsAllMy$

No I didn't but the tutorial I watched didn't tell me to. Fml

zeta

iTrader: (1)

That helps explain the camshaft movement.

redbeard1

Hello,
The rear cam springs backwards on many of us with no damage (search the thread that contains the image below). Just make sure to use a box end wrench to reverse the movement (if the cam went back by 45 degrees, fix it by going forward 45 degrees. Do not fix it by going backwards 315 degrees) and leave it at TDC.

https://acurazine.com/forums/third-g.../#post15667043

t-rd

Did you make timing marks on the old belt then transferred the marks over? If you didn't and you are doing this the first time, then most likely you are 1 tooth off on the rear cam. Then if you went and tried to forcibly turn the engine, the valves might have the cylinder tops. Also, when you went to manually crank the engine without the spark plugs out, you are feeling the compression from closed off cylinder chambers which makes for "false resistance" It's best that you remove the plugs when doing the timing belt.

My2006TLgetsAllMy$

Okay lesson learned. I had it on the exhaust stroke. That was my problem the entire time. I learned a lot about timing. That's for sure. Valve adjustment is this weekend. Hopefully that goes smoothly.

redbeard1

Good luck on the valves.

Could you give more details on how you got it on the exhaust stroke. Was it related to the cam springing backwards? Thanks.

zeta

iTrader: (1)

Take your time and all should go well. When I did mine, I found the rear exhaust valve adjustment the most challenging because of their location. Otherwise, it was cake.

My2006TLgetsAllMy$

I forgot about me posting this thread but the valves were fine. No damage. Motor runs amazing. Now on to other problems.