74westy
Member
I went for a drive in Rover the other day and noticed it was a bit sluggish on the get go and wanted to slow down quicker than normal. Did a couple of checks on the road i.e. release the brakes put in neutral on a grade, and no movement. As I suspected the brakes were locking on.
That ended that trip so return home and raise the front, I have rebuilt the rear brakes previously so didn't start looking there, and check the wheels for rotation. Sure enough not much wheely turny happening without some effort.
Off with the calipers, the seals were brittle and cracked on both and the pistons were corroded and very hard to remove. I've ordered new pistons from Mark Gray and I already have the seal kits.
The outer dust seals on the left side these were relatively intact but there was heavy rust buildup on the pistons within the seal. Almost like the seals had no effect on keeping the piston clean and free of moisture.
When I rebuild the calipers and fit the new pistons (I'm going to use steel again) and seals I'm thinking there should be some grease coated on the pistons under the outer dust seal. This will keep out any moisture which may get past the seal.
Now to my question.What grease should I use? I have proper brake rubber grease for assembly, is this OK. Or should I look at a copper or nickel based grease? Also how will the grease perform when the brakes get how, will it spill out of the seals and contaminate the pads? I'm only looking to put on a thin smear of grease on the pistons, not too much.
Anyone with experience with this?
Many thanks,
Craig
1972 P6B 3500 V8 NZ Assembled
That ended that trip so return home and raise the front, I have rebuilt the rear brakes previously so didn't start looking there, and check the wheels for rotation. Sure enough not much wheely turny happening without some effort.
Off with the calipers, the seals were brittle and cracked on both and the pistons were corroded and very hard to remove. I've ordered new pistons from Mark Gray and I already have the seal kits.
The outer dust seals on the left side these were relatively intact but there was heavy rust buildup on the pistons within the seal. Almost like the seals had no effect on keeping the piston clean and free of moisture.
When I rebuild the calipers and fit the new pistons (I'm going to use steel again) and seals I'm thinking there should be some grease coated on the pistons under the outer dust seal. This will keep out any moisture which may get past the seal.
Now to my question.What grease should I use? I have proper brake rubber grease for assembly, is this OK. Or should I look at a copper or nickel based grease? Also how will the grease perform when the brakes get how, will it spill out of the seals and contaminate the pads? I'm only looking to put on a thin smear of grease on the pistons, not too much.
Anyone with experience with this?
Many thanks,
Craig
1972 P6B 3500 V8 NZ Assembled