Can't see timing settings

[leadalto]

The following picture shows the crankshaft timing indicator on my 93 S-10 Blazer.

My Chiltons 1983-95 Repair Manual does not show an exact example of what I have and whatever markings were there are not visible.

I’ve added abitrary marks to the picture (A,B, C etc.) and I’m hoping that the experts of this forum can please identify which mark is 0 Degrees, X-degrees advance, etc.



The under hood plate says that my timing should be set to 0 Degrees (TDC). That is with the computer timing bypass wire disconnected. On the 93, this is (according to Chiltons) a wire that “breaks out of a taped section just below the heater case in the passenger compartment”. The guy doing my smog test (which I failed miserably, fuel too rich) showed me the wire and its connector located behind the top edge of the carpeting on the passenger side.

[old_master]

"E" is TDC That's all you need to set ignition timing, the computer does the rest. (D, C, B & A usually increase in either 2 or 4 degree increments.)

[534BC]

0, 5, 10, 15 , 20 in reverse order

someone check me I am not 100% sure.

[MT-2500]

Sand or scrape it off a little.
I can see the 0 mark in the picture. Right where D is pointing to.
E is not a marker but part of the strobe light holder.
MT

[534BC]

Your right D is 0

[leadalto]

Originally Posted by MT-2500

Sand or scrape it off a little.
I can see the 0 mark in the picture. Right where D is pointing to.
E is not a marker but part of the strobe light holder.
MT

I couldn't get my Dremmel in there to wire brush it so I taped a piece of sandpaper to a long dowel and cleaned off some of the rust. Now I've got another excuse to get a flexible shaft for my Dremmel.

The results, after a little retouching with Photoshop show the 0 mark (Line D in my previous picture) and timing marks every 2 degrees Before TDC from 0 thru 12.

[MT-2500]

Originally Posted by leadalto

I couldn't get my Dremmel in there to wire brush it so I taped a piece of sandpaper to a long dowel and cleaned off some of the rust. Now I've got another excuse to get a flexible shaft for my Dremmel.

The results, after a little retouching with Photoshop show the 0 mark (Line D in my previous picture) and timing marks every 2 degrees Before TDC from 0 thru 12.

10-4 That conforms it.
My eye site is better than I thought it was. But my old memory recalls it being there to.
MT