How is everyone doing tonight?I have a 94 chevy blazer with the 4.3 vortecand i need to know where there timing marks are to time it with a light.Do i need to drop the skid plate and do it from undernieth? Maybe i didnt look hard enough.Any advise?

Does anyone have any pictures?

 

There are no marks. Cool huh? look at the data list for where the computer is setting the timing. No external marks on the 4.3 Vortec.

 

str8 down to the right of the water pump look down and there will be a mark on the harmonic balancer and plate on the block. right around that area

 

No pix but these two posts should help:

https://blazerforum.com/forum/1st-ge...e2/#post472711

How to set timing on 1994 cpi S10 T15 Blazer Jimmy??? - S-10 Forum

Note the contradictions about the timing bypass. One of those will be correct