2007 STR

With the crankshaft locking tool in place to ensure engine timing at 45 degrees ATDC, should both of the banks cam lobe flats be facing up ??? I did a rebuild recently and only messed with bank A. Left B bank alone entirely. I’m receiving the P0018 crankshaft/camshaft correlation code in this case i believe to be timing related with what i’m seeing and new sensors. Along with the way the car idles and will not drive in D and R just bogs out.



A bank that i timed. Cam flats up^

B bank that i left alone. Flats are down.

Should both banks flats be facing up when the tool is inserted to show correct timing ???

 

ALL 4 cams should have the flats straight across.
A little variation from the cam chain slack and the valves pushing the cam is normal.

You should lock each side with all the slack out of the chains but sometimes they spring back a little.
Oil pressure will press the tensioner to take out the slack when the engine is in operation.

I uploaded my copy of the Jaguar Engine Course 168 to a few site on the internet.
Download it if you have not done so already.

bob

 

Thanks Bob! Yes i just figured out that the insert slot for the crankshaft tool on the (flywheel plate?) makes 2 revolutions; considering when the B bank flats on the cam were up, the A bank flats were down and the tool fit in. When the A bank flats were up, then the B bank flats were down the tool would slide in again. i’m surprised the car even ran, it just didn’t run very good after it warmed up. Now i have my answer, they should all be up at the same time with the engine at TDC which is what i figured. I just don’t remember what they looked like the initial time i had inserted the crankshaft tool and removed the A Bank cylinder head. Couldn’t say if the cams were right or still wrong. Oh well i will have her running tomorrow finally after a very long process.

 

Now time to figure out how to put them both up. If I installed the A bank up while B was down, do i put the tool in when the A bank is up or down, or B bank up or down.. confused now.

 

With the crank lock installed, NO piston will be at TDC so you can turn whatever cams you want without contact.

Put whatever side you want UP and then rotate the other side cams to match.
You could even loosen the primary sprocket on one side and turn BOTH cams with the secondary still linked.

Whatever way you want.

bob

 

Perfect!! Thanks again!!

 

Bank 1 is right side (passenger side), Bank 2 is left side (driver side). Your timing is slightly off. Sorry to say, you will have to go back in and reset your timing. Make sure to follow procedure exactly. I've seen it happen too many times.

 

After almost 5 years, I think he either figured it out or sold the car.

 

My bad, didn't notice the date.