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trying to set timing

  #1  
Old 08-31-2009, 09:10 PM
yec
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Default trying to set timing

i have an 87 k5 with a 350 that ive been trying to set the timing on. the problem i have is the truck wont start with the advance disconnected. this is my 6th k5 so not much is new to me , but this has me stumped. any ideas out there
 
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Old 09-01-2009, 03:39 PM
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It is a vacuum advance right?
What happens if you start it then disconnect the advance?
 
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Old 09-01-2009, 08:14 PM
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no - computer contrled
 
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Old 09-02-2009, 12:49 PM
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On my old '94 yukon the timing had to be set by connecting to the computer. Is it the same case here?

Drove me nuts. Turned the distributor to adjust timing and could watch the computer adjust it right back.

This is something I found. Not sure about reliability but....LINK
 

Last edited by oisinirish; 09-02-2009 at 01:35 PM.
  #5  
Old 09-02-2009, 09:04 PM
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fixed it - turned out it was my msd controler- had to bypass it. now i just dont know if the controler is bad, but hey the truck runs now . i took the controler out-- i guess " keep it simple stupid" rite
 
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