cobrasneverdie
el guapo
not having any luck here guys, tried compressed air, tried to tack a weld with a bolt and taking it out.Didn't try the grease gun cause I had to go to work. I'll give that a try as a last ditch effort.
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Rusted caliper piston
- Thread starter cobrasneverdie
- Start date
Put a big c-clamp on them and tighten it down to break them free first. Then try the air again. You may have to repeat the process - blow them out as far as they'll go then squeeze them back in with the c-clamp. Working them back and forth like this will usually get them out eventually.
cobrasneverdie
el guapo
Thanks I'll give that a whirl!
jkocr2
XS650 Addict
Grease gun! It'll come out most of the way then shoot it with air once it's almost out. That's what I had to do.
yellowdog
yellowdog
mine are still soaking in oil,they have moved a little
donald
XS650 Enthusiast
A good Lincoln grease gun can put out 4000 psi. Be careful
cobrasneverdie
el guapo
hey guys, so I decided to buy a new caliper. I want to ride! What I'll do is try to fix this one over the winter and keep it as a spare part. You never know when you need one or when a good friend with an xs will need one. I am thankful to have some good friends give me their parts to get my bike going. I'll definitely have to buy a grease gun as mentioned above. I'll give it a whirl soon. Yellowdog let me know how yours turns out!
Thanks for all the input
Thanks for all the input
yellowdog
yellowdog
Success,finally got the pistons out,I had to drill a series of holes in the pistons to make one large hole and then got a coach bolt with a thin head and managed to get the lip of that under the piston to act as a lever and managed to force them out,
This took about 2 hours per piston,surprisingly there was no rust so I suppose they were just well stuck in.
Any tips for refitting the new pistons and seals ?
This took about 2 hours per piston,surprisingly there was no rust so I suppose they were just well stuck in.
Any tips for refitting the new pistons and seals ?
79Standard
XS650 Addict
I just got a piston out this way. Clamped down with a C clamp to break it free and get it moving, then kept pumping on the brake lever and feeding in more fluid til it popped out. Got it done in about five minutes.
Clean your caliper very well Inspect for pitting galling or other damage. If it's in good shape the new parts should slip right in. Lube the new parts with clean brake fluid before install.
Use clean brake fluid for most of the cleaning, Tough spots use spray brake cleaner. Maybe some 4 0 steel wool.
Leo
Use clean brake fluid for most of the cleaning, Tough spots use spray brake cleaner. Maybe some 4 0 steel wool.
Leo
yellowdog
yellowdog
Thanks will do ,shame I had to wreck the old pistons to get them out.
Mike's has pistons for both. They don't say they are stainless but The ones I bought awhile back looked to be stainless. They are not chromed.
I don't recall if they said they were stainless when I bought them.
Mike's 72-76 #29-0518 $22 ea.
77 up #29-0516 $26.50
Leo
I don't recall if they said they were stainless when I bought them.
Mike's 72-76 #29-0518 $22 ea.
77 up #29-0516 $26.50
Leo
