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How to find top dead center if cam sensor not installed?

XJ XJ6 / XJR6 ( X300 ) 1995-1997

How to find top dead center if cam sensor not installed?

 
  #1  
Old 04-20-2019, 07:03 AM
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Default How to find top dead center if cam sensor not installed?

I am trying to reassemble the engine on a 1995 XJ6. The previous owner had disassembled parts of the motor including parts of the front of the motor.
The cam position sensor piece that looks like a distributor with no cap is off the engine and he also removed the upper timing chain tensioner.
So now I am attempting to get the engine to TDC so I can make sure the cams and cam sensor are properly in time.
Is there a way to set the motor to TDC by looking at the bracket for the crank position sensor and comparing that to the missing tooth on the toothed timing gear on the back edge of the crank damper?
 
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Old 04-20-2019, 08:52 AM
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JTIS will have all the info you need. It is EVERYWHERE on the internet.
Here is a TSB that describes the tool used for cam setting.

bob
 
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03-1-06 Camshaft Timing.pdf (113.3 KB, 11 views)
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  #3  
Old 04-21-2019, 06:53 AM
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Default Yes, I have the cam tool

Yes, I already have that tool but in order to use it I need to know when the crank is exactly at TDC which is why I posted this question here.
 
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Old 04-21-2019, 08:50 AM
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The damper reluctor ring has a little TRIANGLE and the pointer is bolted to the engine.
The pointer is slot mounted so it can move slightly but if has not been 'adjusted' or damaged, it will be set correctly.

bob
 
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  #5  
Old 04-21-2019, 11:02 AM
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Unfortunately the pointer was removed from the engine by the previous owner while he was trying to remove the lower timing chain cover.
Where is this small triangle on the toothed wheel? I will look carefully at the wheel but I don't trust the pointer to be 100% correct since the holes in the pointer bracket are slotted therefor it can be moved up and down a little bit.
 
  #6  
Old 04-21-2019, 05:06 PM
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Drop a rod into the spark plug hole on #1 or #6 and use a dial indicator to find the top of the piston stroke.

bob
 
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