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Re: Need Advice! Do I Need a New Camshaft????
Quote:
Originally Posted by Atlfan65
What are you seeing in that article that mentions specific numbers? It talks vaguely about the concept of vacuum advance and mentions the limiter plates, but doesn't talk about what adjusting the vacuum advance can does. Point it out to me if not. I'm looking at section 15.5.
I'm confused what you mean "tip in point at 4.5 in - 8 in vacuum." My truck is running at 20 in vacuum at idle and while I didn't have long enough vacuum line to test cruising vacuum, I'm sure it's much higher than 8 in vacuum.
What I've read about tuning vacuum advance says to back out on the vacuum advance adjustment if pinging occurs. So what is this physically changing?
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Depends on what can you have exactly... the article was discussing "adjustable vacuum advance" cans. Here's the info-graphic from the link that I based my comment on...
...seems to indicate both tip-in and total vacuum advance is adjustable...
-klb
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67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi
07 335 sport turbo 6sp
94 Trans Am GT LT1 6sp posi -- sold after 22yrs
99 540 sport V8 6sp -- sold
73 240z L24 4sp -- given to friend
68 C10 step 350/350 3.73 open -- sold
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