kickstand80

Had a cam timing adjuster go bad, left head. Installed new one. Reinstalled the timing belt per Bentley, this belt only has 8000 miles on it, I did it last July. Now its running like poop, throwing a p0341, right head cam sensor and a bunch of misfires. Swapped the Halls and it is still throwing a p0341, so it has to do with the RIGHT head. The bently says that there are 16 links on the right head between the timing marks and only 15 links on the left head, left is the one I worked on. Is this correct?

also

I rechecked the belt and found that the flat side on the cam where the diamond shaped washer with the holes in it for the cam alignment tool is no longer flat. Don't know how this happend, but I guess that I was not paying attention after I poped off the cam sprocket and did not have the retaining bolt tight enough when I snugged it down, anyway if F'ed up sooooo the cam tool is almost useless to get the left cams back in time. I can get them close, but not perfect.

I noticed that the timing marks on the left head cams do line ip with the arrows on the caps, but..... the engine is not on tdc when they are lined up.

My question is, with the crank at TDC, I have the locking tool in place, do the cam timing marks line up with the arrows on the caps or are they offset? Any of you 4.2 guys have your valve cover off for a belt that could look for me.

I would assume that the cams timing marks and the crank TDC position should match, but the bentley manual really does not say, that I could find.

4Driver4

I'd replace the damaged cam shaft and recheck the chain.

kickstand80

The cam is not damaged just the flat on the end. The flat has nothing to do with the function of the cam, just the setting of the timing between the two heads. IF the timing marks are supposed to line up on the cams when the engine is at TDC, I can set the cams in the correct position without the tool.

kickstand80

Why 16 links on the right head and 15 on the left??

4Driver4

That makes no sense. Not familiar with the 4.2, but I see no reason why they should be different.

4Driver4

You can get it close enough for the car to run, but only luck will get it close enough for the ECU not to bitch about it.

kickstand80

2001 4.2. The right and the left head are listed seperate. Read both and says that one is 16 and one is 15. WTF

kickstand80

The tool is a convience so that you don't have to remove the valve covers. If the cam timing mark are also lined up when the engine is TDC, then it will be no problem. I will just have to hold the cam with another method, like the 3.0.

4Driver4

No. You can get close by eyeball, but that's it. Correct timing requires the tool.

OOOOya

Is the issue that once you eyeball the sprocket back into time keeping locked in place? Picture?