Mityvac REPAIR KIT FOR 8500

I have an older (original) Mityvac. Probably from the 1980s. And although the design has changed. All the seals fit and function in my vintage mityvac.There are also very good instructions included with the kit.I recommend this kit if you are interested in rebuilding you old mityvac

Worked perfect to rebuild my Mity Vac. Everything was in the kit.

All parts worked well with my old MightyVac

It works

Does the job as advertised - includes all needed parts.

Worked perfect

If your pump does not draw or hold vacuum or pressure anymore, this is the rebuild kit you need (for newer Mityvac metal body pumps). What usually happens is the user has drawn in either brake fluid or an oil and one or more seals have swollen and then failed. Very easy to do with only a few tools and two fluids:Needle nose pliersCouple of very small flat head screwdrivers for carefully prying partsPhillips #1 and #2 screwdriversSilicone based lubricant (nothing petroleum based!) I use Sil-Glyde.Brake parts cleaner sprayJust follow the instructions, very easy to do with basic mechanical aptitude.I will warn you- it doesn’t explicitly say this for every part, but clean the inner housings with brake cleaner and wipe out with a rag before reassembly, especially if you had brake fluid or other contaminants drawn into pump which caused seal failure. This will ensure your new O rings don’t fail prematurely.All in all, a great kit for the price

I'm sure it works fine for the mityvac it's intended for, but very little of the parts fit mine and when I tried to send it back they hit you with all these stipulations about whether or not it's been installed or not? Well you kind of had to install it to see if it was going to work or you started installing it and then realized it's not the right kit. So I got nothing out of it and didn't even bother trying to return it because they're going to find an excuse not to give me my refund and I have to pay their fees.