tony barnhill
Great Pumpkin - R.I.P
Offline
MGB calipers are easy to rebuild; heck, they're a snap....Midget calipers are almost impossible to rebuild!!
I've ruined 2 rebuild kits trying to rebuild 1 caliper...here's what the instructions say:
"1. Coat a new fluid seal with Disc Brake Lubricant, (the seal must be dry on application). Ease the seal into the groove in the caliper bore and gently work round it, with the fingers, to bed it correctly. It will be noted that the fluid seal groove and the seal are not the same shape in section, thus when bedded in, the seal feels proud to the touch at the edge furthest away from the mouth of the bore."
"2. After lightly coating the piston with Disc Bake Lubricant, insert squarely into the caliper bore. With fingers only, press in piston until approximately 5/16" is left protruding."
"3. Coat a new wiper seal identified by its "V" groove with Disc Brake Lubricant, (ensuring seal is dry) and fit it into the new metal seal retainer. Slide assembly squarely, seal innermost over the protruding portion of the fitted piston and up to the bore mouth."
"4. Remove piston clamp from mounting-half of caliper and, with aid of distance piece, use clamp to press home the seal retainer and seal. Using the clamp only, press piston fully into caliper bore."
No problem with #1, #2, & #3.....#4 is where the problem lies (& where the metal seal retainer gets bent every time!)
The new metal seal retainer <u>WILL NOT</u> go in its groove in the caliper bore with the new wiper seal in it like its supposed to.....however, the old metal seal retainer WILL go in with the new wiper seal in it!
Trouble is, because the rebuild kits had new metal seal retainers, I didn't worry about saving the old ones!
Time to call PeterC!!
This <span style='font-size: 12pt'>SUX!!</span> I've never had a problem rebuilding MGB calipers in all the years I've messed with them; heck, a few weeks ago I rebuilt a pair for my '74-1/2 MGB GT in about an hour!
DARN this Midget!
I've ruined 2 rebuild kits trying to rebuild 1 caliper...here's what the instructions say:
"1. Coat a new fluid seal with Disc Brake Lubricant, (the seal must be dry on application). Ease the seal into the groove in the caliper bore and gently work round it, with the fingers, to bed it correctly. It will be noted that the fluid seal groove and the seal are not the same shape in section, thus when bedded in, the seal feels proud to the touch at the edge furthest away from the mouth of the bore."
"2. After lightly coating the piston with Disc Bake Lubricant, insert squarely into the caliper bore. With fingers only, press in piston until approximately 5/16" is left protruding."
"3. Coat a new wiper seal identified by its "V" groove with Disc Brake Lubricant, (ensuring seal is dry) and fit it into the new metal seal retainer. Slide assembly squarely, seal innermost over the protruding portion of the fitted piston and up to the bore mouth."
"4. Remove piston clamp from mounting-half of caliper and, with aid of distance piece, use clamp to press home the seal retainer and seal. Using the clamp only, press piston fully into caliper bore."
No problem with #1, #2, & #3.....#4 is where the problem lies (& where the metal seal retainer gets bent every time!)
The new metal seal retainer <u>WILL NOT</u> go in its groove in the caliper bore with the new wiper seal in it like its supposed to.....however, the old metal seal retainer WILL go in with the new wiper seal in it!
Trouble is, because the rebuild kits had new metal seal retainers, I didn't worry about saving the old ones!
Time to call PeterC!!
This <span style='font-size: 12pt'>SUX!!</span> I've never had a problem rebuilding MGB calipers in all the years I've messed with them; heck, a few weeks ago I rebuilt a pair for my '74-1/2 MGB GT in about an hour!
DARN this Midget!