Narve N Posted May 17, 2013 Share Posted May 17, 2013 Anyone able to identify the two pairs of lower center firewall holes found on a Series 65, that appear to be factory? I have gone through 5 firewalls from Ser65s myself and never found anything attached to these holes although they all had these holes.On the enclosed picture of a trial fit they stand clearly without anything bolted into them, as I have no clue to what to fit. The firewall insulation does not have any corresponding holes indicating they are there only to mount something inside the engine compartment. There is however only about 1" clearance to the engine head at the location, so it cannot be anything substantial?Good theories are encouraged. Link to comment Share on other sites More sharing options...
frank29u Posted May 18, 2013 Share Posted May 18, 2013 Narve,Your firewall looks very much like my 1929 Plymouth U. The two pair of holes I believe you are describing hold the accelerator/throttle cross shaft. The port side (nautical) bracket can just be seen above the horn. Sorry for the poor picture.frank Link to comment Share on other sites More sharing options...
Narve N Posted May 24, 2013 Author Share Posted May 24, 2013 Frank,that is an excellent explanation for those mysterious holes. Although the throttle rods on the Series 65 Chrysler are secured to the rear top of the engine, it could very well be that the corporation made only one firewall for all the junior cars (Plymouth, De Soto, the small Chrysler). Do you have a picture of the overall firewall with more holes to support this theory? I remember the early production Series 65 actually had slightly different firewall with a large hole to accommodate the firewall-mounted coil. Link to comment Share on other sites More sharing options...
frank29u Posted June 9, 2013 Share Posted June 9, 2013 Hi Narve,Sorry for the delay, here. I don't have an unobstructed view, but here is most of the other side.[ATTACH=CONFIG]197113[/ATTACH]frank Link to comment Share on other sites More sharing options...
Narve N Posted June 23, 2013 Author Share Posted June 23, 2013 So much for the one-size fits all theory. I can see that most other holes differ between the Plymouth and the Chrysler, so the surplus holes on the Chrysler must have been put there in case Chrysler also would swing to a firewall mounted throttle cross shaft. Possibly they did so with the Series 66 as I never have taken any of those into close scrutiny? Link to comment Share on other sites More sharing options...
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