Archived 12 valve injection timing

[Timgibson]

i checked my pump timing on my 1995 12 valve,it checks at 7. 3mm,does anybody know what that equates to? i know its advanced,i was checking it to see if i could advance it for better performance and to my surprise this is what i found. also was checking for dowel pin movement,guess what? my truck has no dowel pin,it has a different color front cover,and i can see one bolt hole is partially gone in the aluminum plate,i guess somebody blew the dowel out the steel cover,it did chip a tooth on the cam gear. i checked with the guy i got the truck from and he never knew anything about this,the original owner must have had the failure,cummins should have stood behind this problem with a recall. i was at cummins recently and saw about a half of a 55 gallon oil drum with broken covers in it,thats not a small percentage in my book. tim

 

[Jim Fulmer]

http://www.piersdiesel.com/TechPTiming.htm



Check the CPL against this chart!



Jim

 

[Timgibson]

nice chart ,i have one

my cpl is 1550,if you look at my post i stated my timing is 7. 3mm at tdc,thats off the chart!i was looking for somebody that could tell me how many degrees bftdc that comes out to. thanks,tim

 

[crabman]

Chart

If you check out the chart, you will see that for every 0. 1mm it equals 0. 5*. (cpl=1550) Therefore your timing should be 20. 5*. That is if your measurments are correct and I read the chart correctly!!

crabman