Topic: Firewall Ground Strap to engine


kenburke    -- 10-21-2014 @ 12:58 PM
  The picture on page 5-13 figure 5-12 of the 40 restoration book is not how my car is set up. My 40 is in the first 3rd of the production line. Maybe in December of January is my guess. I am replacing my solenoid as well as other stuff. On my car the stud bolt behind the battery is for + to firewall. However I do not have that other stud as depicted in the photo being at 2 o/clock to the solenoid. My car has a firewall stud just to the left of the solenoid. I guess a production change? My real question is per factory, where does the firewall ground strap get secured on the engine. I will measure and acquire as necessary. Retailers sell a +8" to +9" web strap. That is too short for my car unless a head bolt? Any suggestions on the placement of an additional running gear to frame ground strap. Thanks


kubes40    -- 10-21-2014 @ 6:04 PM
  Ken, You are one of those guys that make all the research I do well worthwhile. It's nice to know there are at least a few guys remaining that are actually interested in properly restoring their cars.
That being said, here's your answer:
There were in fact two basic designs of the ground strap, etc. The first design utilized but one stud. Both the battery ground strap as well as the body ground were attached to this same stud. I have attached a photo of the early design. Still, you should be able to clearly see the way the "early" cars were built in this regard.
The second and final design incorporated two studs. One, very near the battery was used only for the battery ground. The other was used only for the body ground. In this, the last design, the strap was placed beneath the rearmost bolt (right side) of the valve chamber cover.

Take care Ken,
Kindest regards,
Mike

This message was edited by kubes40 on 10-22-14 @ 6:23 PM


kenburke    -- 10-22-2014 @ 12:56 PM
  Thanks Mike,
That's for the info and nice comments. Anyway I got it! I must have the later design firewall. Several comments on your photo (which I appreciate). The fire wall is not Lyon Blue? The battery hold down clamp has a cad bolt (that makes perfect sense to me). And, the cable from the + post battery should be secured behind the battery. Questions, so are the securing nuts for the two studs also cad? Would the strap from firewall to engine be the web style? I don think they are offered for sale. Once again, Thank you! Ken


kubes40    -- 10-22-2014 @ 6:24 PM
  Ken, the nuts on the studs are S2, raven black.
The ground strap is woven as you thought.


kenburke    -- 10-24-2014 @ 1:58 PM
  Thanks Mike, I guess this means the picture I reference is incorrect for the fastener.


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