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  #1  
Old 08-17-2003, 08:32 PM
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Join Date: Aug 2003
Posts: 5
Help!! 103 timing marks

Hi Guys,

I have searched but could not find any pics for this, I hope some one can help. I am trying to align the timing mark on my 89 300E with the 103 motor. My questions are:

1. What mark is the timing mark on the crank? I have a fin on the front of the lower timing cover, and the left edge of the crank sensor bracket. What do I use? Should it be on the number or the little line to the left or right of the T.

2. I see a dot on the lip of the crank, I feel like it should be straight up and down with the cam tower , at the 12 o'clock position. This aligns the cam locating pin to the left of the head at 9 o'clock, it the cam right?

3. What would be a common problem that a novice mechanic could do in replacing the head gasket on this motor that would keep it from starting.

Thanks guys for all of the help.

Rickie
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89 300e 275,000
87 260e 265,000
72 Datsun 240z
70 Datsun 240z

Last edited by zmanky; 08-17-2003 at 08:42 PM.
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  #2  
Old 08-18-2003, 01:25 AM
Meza's Avatar
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Join Date: Jan 2003
Location: SC
Posts: 148
Here is a picture for the crank

The T is aligned with the crank position sensor.
For the camshaft, there is a small hole at the front end of the cam (the piece that holds the cam gear) aligns with a notch on #1 rocker.
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1993 190E 2.6
Advanced Diesel Systems Test and Research Engineer
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  #3  
Old 08-18-2003, 08:55 AM
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Join Date: Aug 2003
Posts: 5
Camshaft notch

Meza,

I see many holes on the cam flange, where the gear attaches, how do I know which one? also I cant seem to locate a Notch on the rocker assembly. Can you describe it better as I don't have a service manual (yet), bought one on ebay last night.

Thanks,

Rickie
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89 300e 275,000
87 260e 265,000
72 Datsun 240z
70 Datsun 240z
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