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MarianaWestminster

Member Since: 14 Jun 2018
Location: UK
Posts: 729

Great thinking Knares I like it...

The car is a 7A vin so this screenshot from JLR classic parts suggests YWC500521 is correct and a later part number can also be fitted in succession to the original.

Click image to enlarge

9th Apr 2025 6:57am

MarianaWestminster

Member Since: 14 Jun 2018
Location: UK
Posts: 729

Been looking back at my pump pressure test and I do see an anomaly.

According to the WSM the relief valve in the pump should limit pressure going to the rack to 114 bar +/- 4 bar so that's a min of 110 bar and max of 118 bar.

Click image to enlarge

During my pressure test I saw 1750 psi or approx 121 bar.

This is higher than the specs though?!

Also the pump itself is marked with a sticker stating 132 bar?

10th Apr 2025 11:15am

MarianaWestminster

Member Since: 14 Jun 2018
Location: UK
Posts: 729

Does anyone know exactly how much pressure the rack needs?

The 2007MY workshop manual doesn't have the information but I found a 2002MY manual which states I should see 8 bar at idle and 133 bar at full lock. (Screenshot below)

Obviously a 2002MY car has a different pump but I'm sure the rack is the same 2002-2012?

On my pressure tests I saw approx 4 bar at idle and 121 bar at full lock...

Click image to enlarge

12th Apr 2025 11:58am

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