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Old 04-14-2012, 07:03 PM
dtrain dtrain is offline
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Join Date: Jun 2002
Posts: 60
Finally got some time. Heads are off and the harmonic balancer is off. Couple of questions:

1. How do you remove the TDC sensor under the distributor? I removed the nut but can't tell how it comes out - it's still pretty solid.

2. One of the cylinder walls is scratched. The piston is 1-1/2" down right now and the scratches go down at least that far. Any thoughts about what to do with it? There are several pistons that are up all the way. Is there a way to check those cylinder walls?

3. Several rocker arms are worn. I've read that you should replace all of them if you replace some - is that correct? In addition, do I need to replace the cam shafts too - the lobes don't appear to have any wear?

thanks for any input
Attached Thumbnails
W126 420 sel rebuild-cylinder-head.jpg   W126 420 sel rebuild-engine-front.jpg   W126 420 sel rebuild-mb-engine.jpg   W126 420 sel rebuild-rocker-arms.jpg  
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