rear caliper issues on an 84 vf500f

hi, i have an 84 vf500 interceptor. it sat out side for a couple on moths unfortunately, and now the back caliper is sticking and wont fully release. it seem to have some surface rust on the pistons. my first question is can i soak the caliper in wd-40 or something of that nature, or do i need to re place the caliper. budget is an issue but i still want to be safe. just looking for a little direction.

thanks

jay

 

Some think WD-40 can damage the caliper seals by causing swelling. i dunno and think it's OK.

You could try using it......or just try removing pads, using the brake pedal to push both pistons out about 3/4 of the way, then clean them up with green scotchbrite pad, then using brake fluid as lube push them back in using a large C-clamp, being sure not to get them cocked sideways.

After you have them back in place, repeat the in-out process a few times, and that should help, if not fix the problem. Might be good to replace the brake fluid too. Keep any fluid away from pads.

Clean caliper body and the 2 pins that locate the pads.

Also VERY important to clean and grease the 2 large pins that the caliper slides on !!!

 

i definitly am going to try it. its already broke the worst thing i can do is have to replace it. i was thinking scotch brite as well but wasnt sure . is pb blast better than wd 40 or is is harsher on seals and such. thanks for the help. this site has got me in a better outlook on this project of mine.

jay

 

also as a side note i have some rust in the tank as well that needs to be addressed it not bad but its still and issue , my question is do the kits work to resael and remove rust and do i have to take the petcock off to do it

 

I'D avoid the PB cuz it seems stronger than WD.

If you notice the pistons sliding out easier after 2 or 3 in-outs, it's probably fixed.........for now.

 

yeah ihave run into a few fixed for now instances from the previous owners, at least it gives me something to do in the off season!

 

Tank: See if you can get a local shop to wash it out in their SafetyClean tank or do it yourself to remove whatever rust flakes you can.

A rusty tank will clog up your carbs sooner or later, usually sooner.


I saved a couple of rusty tanks with numerous pinholes by means of this easy-to-use product: "fuel tank sealer" from Plating Kits Electroplating Kits Aluminum Anodizing Kits Powder Coating Systems Metal Polishing And Buffing Supplies - Caswell Inc.