Stephen, I just installed a new vacuum hose, and even though it is a metered vacuum input, I had vacuum at the dissy end of the hose like I used to. I connected it amy rpm shot up. Now i will need to readjust the carbs! Interesting thing is the hose seems not to be leaking but is quite hard. I suspect the problem is it isn’t sealing at the ends. But that is good! Thanks, MIke Moore 300 H On Oct 20, 2015, at 12:05 PM, Anna F Noia <sa-noia@xxxxxxxxxxx> wrote: Michael Remember there are two "vacuum" take offs on the cab(usually). One is metered and the other is direct. meaning One only sees vacuum when the throttle opens; the other has vacuum constantly. I can't say why you don't have any vacuum, but something is not correct. Check the manual to see just what the 300 distributor requires. Does your 300H have the in line 2x4 setup or a Ram? On the inline the distributor vacuum comes from the rear carb, assuming your running progressive linkage; the Ram probably "T'd" to each carb, then to the distributor. Sorry I can't help more. Good Luck. Best Regards, Stephen A. Noia 1-408-210-4736 cell On Tuesday, October 20, 2015 11:52 AM, "Michael Moore mmoore8425@xxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote: I have been intermittently working on my 300H the last few years in my spare time to make it roadworthy. I keep coming back to the crummy engine performance. Past test drives have diverted me to doing a 100% brake job, front torsion bar rebuild and steering box rebuild. The car just doesn;t have as much power as I would expect, even considering the awful gasoline. I finally recalled the car sometimes ran prety poorly when the vacuum line to the distributor was left disconnected. I checked that this morning, even disconnected it while it was running. The vacuum hose is clear, but when I connect my vacuum guage to the line I find no vacuum, Zero at any engine speed. Do any of our experts have any suggestions before I start digging in? Thanks, MIke Moore 300H __._,_.___ Posted by: Michael Moore <mmoore8425@xxxxxxx> To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to https://groups.yahoo.com/neo/groups/all/manage/edit For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang __,_._,___ |