Rear door pressure valve
#1
Posted 28 October 2023 - 11:22 AM
My LH workshop manual shows a singular screw, but parts books show two screw. The LX parts book is the same.
My car 10/75 is two screw.
#2
Posted 28 October 2023 - 03:50 PM
My LH 8/74 confirm single screw
#3
Posted 29 October 2023 - 10:46 AM
It is not an often photographed area. I have no pictures of them in 1975 LH.
#4
Posted 29 October 2023 - 08:22 PM
NFI what yoose are on about. Enlighten me please?
#5
Posted 29 October 2023 - 08:53 PM
Attached Files
#6
Posted 30 October 2023 - 09:15 AM
4-76 4.2 SL/R that just popped up on AMCS has the top one.......However it also has a re stamped body number.
Screenshot 2023-10-30 065448.png 1.03MB 5 downloads
#7
Posted 30 October 2023 - 01:22 PM
#8
Posted 30 October 2023 - 08:23 PM
NFI what yoose are on about. Enlighten me please?
= vent
#9
Posted 31 October 2023 - 06:14 AM
#10
Posted 31 October 2023 - 09:44 AM
1/75 BLH two screws.
So probably with the other changes in Sept '74.
#11
Posted 31 October 2023 - 12:52 PM
Its probably looking that way. I wonder if thats also when the bonnet hinge springs went from ochre to grey?
#12
Posted 31 October 2023 - 03:06 PM
I don't know why they used that ochre on the early LH's. The HQ's used the grey, and so did HJ.
#13
Posted 31 October 2023 - 06:18 PM
I don't know why they used that ochre on the early LH's. The HQ's used the grey, and so did HJ.
Probably to distinguish between the big holden and torana.
#14
Posted 01 November 2023 - 09:07 AM
They use the same hinge, but not sure about the spring. I wouldn't have thought there would be much difference in weight between a HQ bonnet and an LH one.
#15
Posted 02 November 2023 - 03:17 PM
4 - 75
1 screw.
Lots of these were drilled to accept the 2 screw vents over the years.
#16
Posted 02 November 2023 - 05:21 PM
#17
Posted 02 November 2023 - 05:24 PM
They use the same hinge, but not sure about the spring. I wouldn't have thought there would be much difference in weight between a HQ bonnet and an LH one.
It might be a leverage thing as much as weight? Longer bonnet on a Holden/Statesman?
#18
Posted 03 November 2023 - 09:20 AM
4 - 75
1 screw.
Lots of these were drilled to accept the 2 screw vents over the years.
Well that blows my theory out of the water.
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