Slow progress on the quick rack build, I have lots of different size fire sleeve and colours, most of the hoses and fittings, I had made an order for the power steering hose ends from earls fitting a while back now but they have been on back order from America for ages, estimated that they would be in at the start of November!
For those that havnt seen my other thread, this is what caused my rack to fail, the pinion bearing that sits into the rack had room to move, combined with m8 bolts used to bolt the pinion casing down with huge amounts of room spare, the only thing holding everything together was the tightness of the bolts. Comparing the tolerances to another rack I had spare, the quick rack had much more room to spare, I think if they would have built the rack up with a better casing, this might of not happened.
M8 bolts are used for this but it turns out M9 bolts from a bmw auto gearbox fit the pinion housing with a tad room to spare. The rack would need a bit drilled out though for them to work. Still undecided what I want to do, M10 bolts would guarantee a perfect fitment with zero room to spare, I mean its less than a 1mm extra drilled out so dont think it will be a problem.
If anyone has and other ideas about this please let me know, Im not a trained engineer so Im just going with my gut.
I made a video about this, first rack is the one that failed, second a spare rack, you can see the difference in size where the bearing sits.
For those that havnt seen my other thread, this is what caused my rack to fail, the pinion bearing that sits into the rack had room to move, combined with m8 bolts used to bolt the pinion casing down with huge amounts of room spare, the only thing holding everything together was the tightness of the bolts. Comparing the tolerances to another rack I had spare, the quick rack had much more room to spare, I think if they would have built the rack up with a better casing, this might of not happened.
M8 bolts are used for this but it turns out M9 bolts from a bmw auto gearbox fit the pinion housing with a tad room to spare. The rack would need a bit drilled out though for them to work. Still undecided what I want to do, M10 bolts would guarantee a perfect fitment with zero room to spare, I mean its less than a 1mm extra drilled out so dont think it will be a problem.
If anyone has and other ideas about this please let me know, Im not a trained engineer so Im just going with my gut.
I made a video about this, first rack is the one that failed, second a spare rack, you can see the difference in size where the bearing sits.