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Old 11th July 2019, 19:59   #31
SD1too
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Originally Posted by mss View Post
Well, I am from the school of thought which says that preventing any form of rot (of which rust is one) requires free flow of dry air ...


The SD1, a much maligned car, has ventilated sills. It's wheelarches, door skins, bonnet, tailgate and rear panel rot but the sills don't.

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Old 11th July 2019, 20:09   #32
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Most 75's and ZT's now have ventilated sills
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Old 11th July 2019, 20:48   #33
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Problem with filling sills with expanding foam is that if some unsuspecting soul tries welding or cutting the sill a very destructive fire could result.
Some of the foams are made of similar compounds to the foam that backed the tiles on Grenfell tower
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Old 12th July 2019, 00:42   #34
DMGRS
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Spotted the O/S/R of my ZTT is a little crispy around the jacking point area, further inspection pending.
After the whole new rear end this year, it won't be the end though!
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Old 12th July 2019, 17:04   #35
Blink
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Default Another offside rear

Quote:
Originally Posted by DMGRS View Post
Spotted the O/S/R of my ZTT is a little crispy around the jacking point area, further inspection pending.
Mat - you might find what I've just found (see below).


Quote:
Originally Posted by Blink View Post
My OSR jacking point has some rust but nothing like the 1st pic here or 2nd pic in post 3 here. I've prodded the sill all around the pad hole with a sharp point and it's solid, only the edges of the hole itself are a bit flaky/rusty.
On further inspection, my OSR is not as good as it seemed on first sight. I've now bent the flaky bits back with a flat screwdriver and it looks like this (1st pic below). I'm not sure what to do now because I was planning a complete rear end overhaul, including a new subframe.


BELOW: OFFSIDE REAR




BELOW: OFFSIDE FRONT




BELOW: NEARSIDE FRONT




BELOW: NEARSIDE REAR




I'm convinced the jacking pads are to blame for most of the corrosion - they trap water. It's not hard to tell which of these pads was in the offside rear position.





What to do next?

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Old 12th July 2019, 17:09   #36
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PS. The first 4 pics above were taken using a mirror lying on the ground - hence they're a bit soft, and might be back to front!
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