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Originally Posted by bracketshark
Ok you win, I had to have my distributor phased in and that actually does make good reasoning. I agree completely that the computer is in control of all timing functions of a running 96 and later model chevy v8 engines. I used to do this on my drag car when running a crank trigger, we drilled a hole beside #1 plug wire in the cap and used the timing light to set this. Just out of curiosity what kind of work are you in Mr. MT 2500? My connection at the dealership in the service dept. with 19 years of service said he had only had maybe a dozen new installations of vortec distributors. I mean they are only used from 96 thru I think 99, just 4 years thats a lot of installs, the hundreds you spoke of must have been in a very large service dept.. Anyway thanks for setting me straight, and just so we're clear you were also right when you said " The timing is not adjustable. You can turn the dist all day and it will not change the timing.
It only changes the cam retart which is a not a timing adjustment."
If you turn the distributor the engine will not run after the cam retard is more than ~16 deg. out. I like distributor phasing better than cam retard or retart (as you said) whichever it is. Thanks again for your knowledgable input and I look forward to reading more of your lessons. Regards, bracketshark
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10-4 on the dist. and timing
And 10-4 on dist phasing. That is actually what they call cam retard. I never could see why they called it cam retard.
I might have said replace dist but I should have said remove and install them.
Mostly with a intake gasket job. I average at least one intake job a week where you have to remove and install dist almost ever since they have been out 52 a year time 8-9 years adds up.
Along with a few valve or headgasket jobs.
I have replaced a few dist. usually for a broken dist cap hold down ear over the years.
I have 20 years dealership line mechanic experiance before they had techs.
and I have 25 years experiance operating my own repair shop.
MT