Hi, guys here in the land of Oz we have engineered a solution to eliminate steering rack knock experienced by older and/or high km/mileage NSX’s by using the NSX Knock Bush.
What we have found is the rack knock is caused by the rack housing on the passenger side wearing - there is no bearing or bush on this end so after years of driving and off-side road pot holes the aluminum housing wears and the rack shaft has slop and causes knock over low speed bumps.
Easy to identify where the knock is coming from - jack passenger front wheel up and check if there is sideways or top knock/movement. Any sideways knock/movement then the rack housing is worn which either requires replacement (very expensive) or fitment of the NSX Knock Bush. If you find top/bottom knock or movement then there’s another issue other than the rack, most likely warn top or bottom ball joints.
Attached is a pic of the bush and installation video only takes approximately 1/2 hour to fit and no special tools required.
I have had my NSX Knock Bush fitted for over 3 years know with no problems (approx 10,000kms) and 6-8 track days.
Summary
• Easy to identify knock cause
• No special tools or equipment required
• Low cost of repair (compared to only other option – rack replacement)
The NSX Knock Bush is in stock and ready to ship.
Please pm me if you require further info and/or pricing (got nothing to hide its $150.00US inc. freight)
PayPal is the preferred payment option use: [email protected] and reference NSX Knock Bush including your delivery details.
What we have found is the rack knock is caused by the rack housing on the passenger side wearing - there is no bearing or bush on this end so after years of driving and off-side road pot holes the aluminum housing wears and the rack shaft has slop and causes knock over low speed bumps.
Easy to identify where the knock is coming from - jack passenger front wheel up and check if there is sideways or top knock/movement. Any sideways knock/movement then the rack housing is worn which either requires replacement (very expensive) or fitment of the NSX Knock Bush. If you find top/bottom knock or movement then there’s another issue other than the rack, most likely warn top or bottom ball joints.
Attached is a pic of the bush and installation video only takes approximately 1/2 hour to fit and no special tools required.
I have had my NSX Knock Bush fitted for over 3 years know with no problems (approx 10,000kms) and 6-8 track days.
Summary
• Easy to identify knock cause
• No special tools or equipment required
• Low cost of repair (compared to only other option – rack replacement)
The NSX Knock Bush is in stock and ready to ship.
Please pm me if you require further info and/or pricing (got nothing to hide its $150.00US inc. freight)
PayPal is the preferred payment option use: [email protected] and reference NSX Knock Bush including your delivery details.
