As my car has obviously sat for some time.... the pistons are seized in the calipers...
And yes the calipers are powder coated maroon....
Ive got them removed from the car, Ive done my best to remove the dust seal and have let them soak with Mouse Milk inside them...
I can get the piston to go back into the caliper if I compress it in the vice, but getting them out.... wow....
Tried my baby compressor up its bum but that did nothing... Id rather not use grease....
Any other tips.....????
Removing Seized Brake Caliper Pistons
Started by
hanra
, Jan 22 2012 11:57 AM
11 replies to this topic
#1
hanra
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Posted 22 January 2012 - 11:57 AM
#2
dattoman
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Posted 22 January 2012 - 12:13 PM
You need to pump them out hydraulically
Or drill and tap the piston right thru and jack them out with a long bolt
Or drill and tap the piston right thru and jack them out with a long bolt
#3
limo
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Posted 22 January 2012 - 04:13 PM
I had similar trouble with my LC GTR callipers, been sitting for over 20 yrs, I used compressor connected to brake line inlet at 100 psi and used an on / off system with pressure.
they sort of vibrated, out less than a mm and then returned but shifted a few thou each time, took a long time but 1 popped eventually then I put that one just in and held it in place with a G clamp until the other one came out,
was almost like they were flexing on the rubber seal.
they sort of vibrated, out less than a mm and then returned but shifted a few thou each time, took a long time but 1 popped eventually then I put that one just in and held it in place with a G clamp until the other one came out,
was almost like they were flexing on the rubber seal.
#4
hanra
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Posted 24 January 2012 - 08:28 AM
Had some luck!!!
Plenty of heat, mouse milk and a shit load of compressed air!!! BANG!!!!!!
Plenty of heat, mouse milk and a shit load of compressed air!!! BANG!!!!!!
#5
wot179
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Posted 24 January 2012 - 08:30 AM
Be careful with the bleed nipples. 
#6
hanra
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Posted 24 January 2012 - 08:40 AM
Why is that?
#7
SS hatch
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Posted 24 January 2012 - 09:08 AM
Ever been hit by a air rifle pellet compresed air bang projectille
#8
hanra
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Posted 24 January 2012 - 09:32 AM
Nah cant say I have... But the nipple was screwed in fully home. Lucky I guess it didnt blow out..
#9
dattoman
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Posted 24 January 2012 - 09:42 AM
He means... try get them out without breaking them
#10
hanra
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Posted 24 January 2012 - 09:53 AM
Oh well they came out no worries.
#11
SS hatch
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Posted 24 January 2012 - 12:07 PM
Point Taken with not breaking them still be cautious of compressed air I know of same principle used on hyd cylinder resulting with blanked nipple stripping thread never to be found.But to be fair this was industrial high pressure.
#12
hanra
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Posted 24 January 2012 - 12:11 PM
I was actually using the monsterous compressor at work as my home compressor didnt have enough grunt. This thing we got is the size of a bedroom....?
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