Vivat least vaguest.
Join Date: May 2016
Steering Rack to Subframe Bolts
Is there a good reason (in terms of engineering practice) why these bolts have no drainage slot in their crush tubes?
I dismantled two 147 subframes yesterday and both had good evidence of water/moisture entrapment in these tubes, causing noticeable corrosion to the bolts. The subframe to chassis rail crush tubes have drainage slots and no buildup of corrosion.
EDIT: I thought "Bugger this for a lark" and ground small slots into the tubes, at the trailing edge. See attached image for the approach taken. Liberal copper grease application to entire bolt was also a part of my fix.
Last edited by addo; 28-09-16 at 11:31.