<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by quikduk:
Steve,
Just curious here. How many miles are on your C8.3? How difficult was it to adjust the valves re: turning engine over to TDC on each cyl. etc? My manual doesn't show the procedure (I think...but will check tonight or tomorrow). Do you have a link to one or a PDF of the manual?
Ken </div></BLOCKQUOTE>
Ken,
Sorry for just getting around to answering you.
I have 90K on the engine. The valve adjustment proceedure is not hard at all but you need the barring tool to rotate the engine. Mine was a real PITA becuase I had very little stroke on the ratchet driving the barring tool because the frame rail was in the way. I tried to use my 3/8 air ratchet but it wouldn't budge it.
The proceedure was in my little green Cummins engine book so I don't have a link to it. I can photocopy it and send it to you if you send me an email at
samert111@yahoo.com.
There is an engine timing pin under the fuel pump for finding TDC for #1 cyl but on my setup the air compressor is just below the fuel pump and I can't even get my fingers on the timing pin so I had the wife watch #1 cyl valves and when the intake closed I rotated the engine a bit more and figured its close enough to TDC.
Then you can adjust the following valves.
#1-I&E, #2-I, #3-E, #4-I, #5-E
Then mark the balancer and rotate engine 360 degrees and adjust the following valves?
#2-E, #3-I, #4-E, #5-I, #6-I&E.
Clearance is Intake-0.012" and Exhaust 0.024".
According to my manual this is suppose to be done every 24K miles.
Funny thing is that mine didn't need adjusting after all this.
Good luck.