Re: [Chrysler300] 1961 300 G

["Roger Schaaf" <obiwan10@xxxxxxxxxxx>]

I can address the adjustment of timing via a vacuum gauge.  I would not recommend it, as all a vacuum gauge will tell you is the vacuum that the engine is creating.  This of course will vary depending on carb adjustment idle screws, lack of vacuum leaks from hoses, gaskets, etc., and will change depending on timing.  Usually you tune to get the highest vacuum reading at idle.

However this is not true with setting the timing.  You could in theory set the timing to get a very high reading(usually timing advancing will do that), but end up having far to much advance at normal driving or performance high rpm acceleration.  

You should never have more then 35 to 42 degrees of TOTAL timing(initial, centrifugal, vacuum) in any engine at high rpm or under any load.  More then this could cause severe engine problems such as pinging, broken pistons, or decreased performance.

So now you asked what time it is, and I am telling you how to build a watch.  What you really want to know is can I use a vacuum gauge to set the timing.  The answer is no, as using it as an indicator, could you give a far higher then normal INITIAL timing---say 15 degrees advance at idle(because again higher initial timing can give a higher gauge reading) instead of the called for 6 degrees initial advance(depending on engine spec) for example.

So at high rpm, you could end up at 48 degrees advance instead of the best performance/safety(depends much on gasoline octane, compression ratio, fuel richness, combustion chambers(hemis will tolerate more advance), and cam timing of say 39 degrees maximum advance, because again your total advance is the sum of centrifugal, initial and vacuum advance(probably no vacuum advance at high rpm however).

For less then a 100 dollars you can buy a very fine timing light with a built in advance retard mechanism.  Buy one and learn to use it.  

Also when using a timing light to set initial timing, be certain to disconnect the distributor vacuum advance hose if this is called for in the engine spec tuning guide.  Most engines require this disconnect.

Roger Schaaf
300 B 

  ----- Original Message ----- 
  From: Tomas Turovaara 
  To: Chrysler300@xxxxxxxxxxxxxxx 
  Sent: Tuesday, August 08, 2006 11:00 AM
  Subject: [Chrysler300] 1961 300 G


  Name Tomas Turovaara

  Address Kengisgatan 33
  S-981 33 Kiruna
  SWEDEN

  Phone 46-980-14149 fax 46-980-66404
  E-mail tomas.turovaara@xxxxxxxxx

  Hi club members 
  I send this questions yesterday but no response I tried today one moore time
  today.
  I have some questions about adjusting the anti stall unit and ignition timing on my 300 G 1961.
  1. can some one describe how it should work the anti stall unit ?
  2. I have adjust it to .005-.010 inch when the idle speed is 750 rpm and transmission on D position but the anti stall unit is not activated in this situation should the unit be activated when the idle speed is 750.When I stop the engine it is the same gap .005-.010 is this ok. Is the vacuum to low?
  3. Can I adjust the timing with a vacuum meter has any one tried this way ? 

  I will be grateful if some one can help me with this

  Regards from Tomas Turovaara

  [Non-text portions of this message have been removed]



   


I choose Polesoft Lockspam to fight spam, and you?
http://www.polesoft.com/refer.html   

[Non-text portions of this message have been removed]



To send a message to this group, send an email to:
Chrysler300@xxxxxxxxxxxxxxx

For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm

For archives go to http://www.forwardlook.net/300-archive/ 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/Chrysler300/

<*> To unsubscribe from this group, send an email to:
    Chrysler300-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/