Author Topic: vacuum advance question  (Read 3033 times)

Offline 1984k30

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vacuum advance question
« on: March 03, 2010, 11:38:04 pm »
When I bought my truck the previous owner removed the vac advance and put a eliminator plate on the distributor.  I have never had a problem with it in the seven years I have had the truck although I always wonder why he got rid of it. Would I have any benefits in putting one back on or should I leave it how it is.

Offline Captkaos

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Re: vacuum advance question
« Reply #1 on: March 04, 2010, 01:07:39 am »
It will help you part throttle response and possibly your gas mileage.

Offline 1984k30

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Re: vacuum advance question
« Reply #2 on: March 04, 2010, 03:28:39 pm »
Seems like it would be better with it on.  what would have been the reason for taking it off?  Does not advancing the timing give any benefit to the engine?

Offline Captkaos

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Re: vacuum advance question
« Reply #3 on: March 04, 2010, 04:29:37 pm »
Having the vacuum advance helps.  There is no good reason to have it removed on a daily driver.

Offline ccz145a

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Re: vacuum advance question
« Reply #4 on: March 04, 2010, 04:50:26 pm »
PO may have had a vacuum leak and decided to ditch it rather than fix it. ???
1975 C10 Silverado LWB, 454CID, TH400, 10bolt 3.42
11MPG Downhill w/tailwind (but there ain't no hills here)

Offline 1984k30

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Re: vacuum advance question
« Reply #5 on: March 04, 2010, 05:20:53 pm »
Hey thanks for the info.  I think I am just going to but a whole new distributor with it on it and put it in.  Something I always wanted to do since I got the truck just never got around to it.