• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
vacumn line and thermal switch
#1
Hello,

      Am in process of installing set of mechanical guages in 73 Vert, 351 C 2 V, C6 auto, non AC.  My question involves removing the 3 port thermal vacumn switch located in the side of the water pump so I can install a sending unit for the H2O temp in it's place.  Currently only 2 of the 3 ports on this switch are utilized. One prot vacumn line goes to the passenger side port on the 4 port manifold on the firewall.  The other vacumn line on the thermal switch goes to the passenger side of the carburetor base on the same side as the choke.  The other 3 ports on the manifold on the firewall are as follow, 2 to the transmission and 1 to the the intake manifold for vacumn. 

      I spoke with the company that rebuilt my carb in 2015 and they advised that I could remove the thermal switch and cap the port on the carb with no issues.  Curious if I can do that with no adverse effects on the performance of the motor which runs great right now.  Thanks very much !

steve
  Reply
#2
How is your distributed getting vacuum? It should be connected to that thermal vacuum switch. It can go other places, but where is it Now? I have a '71 351 to help you with
  Reply
#3
Yes, you can remove it. Cap off the vacuum port on the firewall and the one on the carburetor. Like Ryunker, asked, what is the distributor vacuum advance connected to? It needs to be connected to either ported vacuum on the carburetor or manifold vacuum. Ported vacuum works well with 351Cs.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
  Reply
#4
(07-09-2018, 06:20 PM)Don C Wrote: Yes, you can remove it. Cap off the vacuum port on the firewall and the one on the carburetor. Like Ryunker, asked, what is the distributor vacuum advance connected to? It needs to be connected to either ported vacuum on the carburetor or manifold vacuum. Ported vacuum works well with 351Cs.

Hello,

Little more background ... when I first bought my Vert the vacumn lines were not properly connected.  I spent a great deal of time trying to locate the correct vacumn diagram and finally found one that was as close to my Vert as possible. Since I routed all the vacumn to the right places the motor has run great.  Right now there is only one vacumn line coming off of the distributor.  This line goes to a "T" which connects to the EGR valve and the front base of the carburetor, on the driver's side. Thanks
  Reply
Share Thread:  


Possibly Related Threads...
Thread Author Replies Views Last Post
  routing of gas line at tank rjpohl 8 226 11-13-2018, 07:14 PM
Last Post: Stanglover
  Neutral safety switch location jowens1126 9 430 07-08-2018, 11:56 AM
Last Post: jowens1126
  Neutral Safety Switch mudbilly 18 866 07-03-2018, 05:08 PM
Last Post: mudbilly
  Wiper Switch Removal mudbilly 8 555 05-25-2018, 07:07 PM
Last Post: mudbilly
  Transmission Neutral Safety Switch CJ MACH 1 2 509 03-18-2018, 09:36 AM
Last Post: c9zx
  Fuel line question for 72 Q-code eventhorizon 5 908 10-06-2017, 08:30 AM
Last Post: Stanglover
  Ignition switch replacement 73429mach 5 1,007 06-26-2017, 09:32 PM
Last Post: rackerm
  A/C Rotary Vacuum Switch Kevin Z 0 750 06-16-2017, 01:54 PM
Last Post: Kevin Z



Users browsing this thread: 1 Guest(s)