Brake pedal pulse on startup, and sound of releasing pressure when fully depressed...(edit)
03-26-2007, 02:18 PM
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Brake pedal pulse on startup, and sound of releasing pressure when fully depressed...(edit)
Could it be air in the lines? Thought the PO R&R'd the BMC(don't know why I first mentioned the master and slave cylinders...brain fart), but I checked the records, and that doesn't appear to be the case. Anywho, quick pulsing(a fluttering, really), and pressure release goes away after the car is in gear and moving. Brake pedal feels normal, then. Tested again this evening, and the process now repeats every time engine shuts down.
Strange. Early warning sign of part failure? Brake Master? Bomb(pedal firms at 30 pumps)? BTDT's?
Also, I know the PO's mechanic didn't lube the new rear lower control arm bushings, and they squeak like crazy now. Any way to quiet that bushing without unbolting the lower control arm? I doubt squirting WD-40 on it would have much affect since there won't be penetration.
Cheers, and TIA for any help
Strange. Early warning sign of part failure? Brake Master? Bomb(pedal firms at 30 pumps)? BTDT's?
Also, I know the PO's mechanic didn't lube the new rear lower control arm bushings, and they squeak like crazy now. Any way to quiet that bushing without unbolting the lower control arm? I doubt squirting WD-40 on it would have much affect since there won't be penetration.
Cheers, and TIA for any help
03-26-2007, 03:35 PM
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WD-40 is not a lubricant!
It's a water dispersant. Formula number 40, in fact.
There are some good spray lubes, including LPS light aerosol grease. I use that on my door hinges and hood release mech.
There are some good spray lubes, including LPS light aerosol grease. I use that on my door hinges and hood release mech.
03-26-2007, 05:49 PM
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I use it as a lube all the time
We had guide rods on one of our machines that used to gum up all the time. We tried everything including LPS. All of them used to absorb grime and used to get rancid after awhile. WD-40 is the only thing that would keep it running. On another machine we used to soak the porous brass bearings in it and then it would run forever.
It actually lubricates quite well, even though it may not be a "lubricant".
It actually lubricates quite well, even though it may not be a "lubricant".
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03-27-2007, 08:23 AM
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It's a very small amount of silicone...
...in a solvent base.
It's good as an initial penetrant in a damp application - drives the water out. Then you use a real penetrant for the lubing/fastener release.
It's good as an initial penetrant in a damp application - drives the water out. Then you use a real penetrant for the lubing/fastener release.
03-28-2007, 04:55 AM
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Works great whatever it is!
Plus whenever you need it, it's as close as any local hardware store or parts store.
It also works great at removing stickers, glue, and tape after a paint job. Unlike a lot of the typical solvents it doesn't affect paint, plastic, or vinyl.
It also works great at removing stickers, glue, and tape after a paint job. Unlike a lot of the typical solvents it doesn't affect paint, plastic, or vinyl.
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