procedures required before timming adjustment

i need to adjust the timing on my 87 s-10 in the haynes maual it says there is procedure i need to do before i time it but it doesnt say what that is could ,anyone please help me out .
timming spec is 10 degrees before top dead centre.

thanks in advance :banghead:

there were alot of posts covering this:

http://www.automotiveforums.com/vbulletin/showthread.php?t=441930&highlight=timing+wire

this is one, there are others with pictures, as I recall;
SEARCH: timing wire

hope this helps,
chris
nrt racing

i need to adjust the timing on my 87 s-10 in the haynes maual it says there is procedure i need to do before i time it but it doesnt say what that is could ,anyone please help me out .
timming spec is 10 degrees before top dead centre.

thanks in advance :banghead:

also, if it's the 2.5L, not the V6:

http://www.automotiveforums.com/vbulletin/showthread.php?p=3455231#post3455231

just posted this in the Fiero threads,
hope this helps,
chris
nrt racing

Also if it's a 2.8 you need to have the engine warm so it will idle down, a high idle will advance the timing a bit even with the wire unhooked.