I had this problem a while back.  I found that the size of the bad sensor
was not the same as the replacement that I bought.  One of them was 23 mm
and the other was either 22 or 24, but I can't remember which.  You need a
deep socket.  I got mine at Lowes.
  Find some calipers or something to reach in there.

Larry A.

On Sun, Nov 25, 2012 at 5:12 PM, Robert Clemmer <n51219@comcast.net> wrote:

> While I have the tin off to access the coolant drain bolt I'm going to add
> an oil pressure gauge.  Can any one tell me the size of the socket I need
> to
> locate to remove the oil pressure sender between the pushrod tubes?
>
>
>
> BobC
>