Garage Gazette
VEHICLES => DAILY DRIVERS/GROCERY GETTERS => Topic started by: goodfellow on October 17, 2018, 06:29:55 PM
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I seem to be doing a lot of PS pumps lately. Had to replace one on the family truckster a few weeks ago, and now the old Mazda needs a pump as well. My problem is that the truck is so old and rare (these days) that they are no longer available. I searched Rock Auto and they will only do a rebuild if you send them the old pump -- they have no remanned parts on the shelf. ---- "Ain't nobody got time for that!!"
The noise in the pump was definitely a bearing. So I took a chance and removed the pump to see if the local parts store would have a bearing in stock. It was a good bet. The local NAPA matched me up a bearing for $20. I probably could have saved a few bucks if I went on ebay and matched it, but then I'd have to wait.
Before starting, I put a plug over the valve assembly bore to ensure that parts didn't drop out (this is a complex valve system with many small parts and check balls) -- so I just plugged it up to ensure the parts stay put.
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0756%20Medium.jpg)
The pulley was stuck tight after all these years, and it needed a lot of heat and some Kroil to get loose.....
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0757%20Medium.jpg)
... while the bracket bolts also needed some heat
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0758%20Medium.jpg)
Everything finally came apart ..
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0759%20Medium.jpg)
There is a snap ring in the top to hold in the bearing, and once it's removed, a quick blow with a brass hammer from the back released the assembly.
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0760%20Medium.jpg)
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0761%20Medium.jpg)
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0762%20Medium.jpg)
The shaft popped out and the bearing was definitely rough.
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0763%20Medium.jpg)
Everything apart and ready for cleaning and reassembly.
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0764%20Medium.jpg)
The bearing is easily driven off the shaft with a brass hammer
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0765%20Medium.jpg)
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0766%20Medium.jpg)
The new bearing was pressed on the shaft using a socket to drive it on the shaft and the old seal and spacer were reused for installation back into the housing.
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0767%20Medium.jpg)
A socket was used to drive it home and reinstall the retainer clip.
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0768%20Medium.jpg)
Everything was reinstalled and the shaft was tight --
(http://i357.photobucket.com/albums/oo18/goodfellow_2004/B2600/PICT0769%20Medium_5.jpg)
Good to go!
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Nice job. I'm sure I will use some of that in the future.
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These step by step how to's with pics are better than what I've seen in the tech manuals. So they ran a sealed bearing in a unit that is full of oil? Have to check my old Mazda. Well done.