#1 cylinder timing issue

[doc18015]

Need help with finding #1 cyl. in a 2.0 911. Removed distributor without marking.....do not know if that would have been helpful. Adjusted all valves using , I hope, #1 at TDC (marks on pulley aligned w/ z-1).......hope it was not #4.Yes, i checked to see if the piston on #1 was at TDC by placing a toolin the spark plug hole. But was it compression or was #4 on compression?
How do I find #1 on compression(not to be confused w/#4 ) and then, align the distributor to fire on cap wire at #1? No real way of hearing compression or feeling compression on #1 because of the deep recess. Tried to place a compression tester in #1 but not easy to do and fear of stripping threads. Any ideas? Thanks to the board !

[Jeff Higgins]

Pull the upper valve cover and rotate the crank, watching for the intake valve opening and closing. When the "TDC" timing mark on the pulley comes up into alignment the first time after that, the piston will be at TDC on its compression stroke.

[doc18015]

Thanks. I assume you mean that any initial movement of the valves indicates that the TDC compression stroke is there. I will try it this AM.

[scarceller]

The timing mark on the front pulley will tell you that Cyl # 1 has it's piston at TDC. But this happens 2 times during the 4 stroke cycle. Once during compression and then again during exhaust. So as already mentioned you need to know that it's the compression stroke and not the exhaust. You can do as already mentioned and remove the valve cover but I have another way. If you have a compression tester that you could thread into the spark plug hole of cyl #1 and what I then do is remove the gauge from the end of the hose so that I just have an open hose conected to the spark plug hole. Then you can simply place your finger over the end of the hose and tell if you are coming around to the TDC mark on the pulley for the compression stroke. Hope you get the idea.

[Trog]

You need one of these:

Porsche, the mother of invention

[scarceller]

Originally Posted by Trog

You need one of these:

Porsche, the mother of invention

Very clever indeed! Love it.

[doc18015]

Tried the suggestions given and success!! Many thanks for the great advise and know how. Never to old to learn.

Now on to the Webers and their state of tune. What caused the dist. problem was the reset of the valves(car ran when #1 was set up) and the lack of response from the Webers upon tuning.

The Webers were removed and throughly cleaned, acc. pumps checked and float level checked.

The car started quickly as noted above but I did not let it run. I will jump on the carbs tonight