Eric, I recently discovered that there are in fact two timing marks on the pulley wheel: ----------^---->F ---u----------->R The "u" mark is TDC for cylinder #1. The "^" mark is 5% ahead of TDC. This is the mark that should be aligned with the block split line. Is it possible that you accidentally set your timing 10% ahead of TDC? Larry ~~~~~~~~~~~~~~~~~~~~~~~~~~~ Eric wrote: <<Hey ya'll, can someone help me on this? I have done a complete tune up on my '86 GL. I found it difficult though to determine the degree of timing advance using the methods described in my VW mech's manual and here by list members. Using a timing light and adjusting the pulley notch to what appears to 5degrees advanced of the block seem (2k RPM, temp sensor disconnected) the van runs terrible. No power. with it advanced to what appears to be 40-45 degrees advanced the van runs incredibly strong and cool with no audible knock. In fact at this setting it is well short of where I begin to hear knock under load.>> snip |
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