During my present rebuild, I notice that the 4 new bolts I have used are tensioned into their threaded holes in the top plates of the subframe towers BUT the flat washer under the head of each bolt can still be moved easily, meaning the subframe isn't clamped into its location because the bolt seems to be bottoming out.
Attachment:
Tower bolt original and replacement.jpg
The bolts originally used to retain the tower look like they are 'special' - the threaded portion is short and the overall length is shorter than a full 4 inches, which is the length of new bolts I have been using in the past and now.
I usually replace these tower bolts as they live in a damp environment and are always rusted out when removed.
Mini King catalogue lists the bolts as HBZ534 but that is a 4 1/4inch and would definitely bottom out if I'm having problems with a 4inch one.
Anyone come across this before?