I searched and didn’t find a thread in 80 series tech on the subject of removing the top cover from the PS reservoir and cleaning the gunk out. This is also an opportunity to fix a leak from the reservoir if you have one.
I decided to post this after I spent the time cleaning the strainer/diffuser so I posted no photos of the crud that was stuck to it. In my estimation, the strainer was 20% blocked with debris. I have two reservoirs, one 93 and one 94. I pulled them both apart and found the 1994 unit was more like 30% blocked with debris so I worked with the cleaner 1993 unit. Also, the rubber seal that fits between the top and reservoir from the 1993 unit was not cracked and much more flexible than the seal from the 1994 unit. This, coupled with the fact the 1993 reservoir was cleaner inside has me thinking it was a replacement reservoir.
Fold the crimp tabs out to remove the top. I used a scribe with a curly que point on it to get under the tabs and start the process. To remove the strainer/ diffuser,
grip the inlet tunnel with vise grips ( go easy) and pull up. It will only come out by pulling one side up and out so the strainer ends up at an angle inside the reservoir.
I used gasoline and a toothbrush to clean everything up and then blew the screen off with compressed air. Reassembly is opposite but the same as disassembly. Since I will install a
Magnefine in-line filter just before the reservoir, I know I will never do this again so I used a little RTV on both sides of the rubber lid seal to ensure no leaks.
I decided to post this after I spent the time cleaning the strainer/diffuser so I posted no photos of the crud that was stuck to it. In my estimation, the strainer was 20% blocked with debris. I have two reservoirs, one 93 and one 94. I pulled them both apart and found the 1994 unit was more like 30% blocked with debris so I worked with the cleaner 1993 unit. Also, the rubber seal that fits between the top and reservoir from the 1993 unit was not cracked and much more flexible than the seal from the 1994 unit. This, coupled with the fact the 1993 reservoir was cleaner inside has me thinking it was a replacement reservoir.
Fold the crimp tabs out to remove the top. I used a scribe with a curly que point on it to get under the tabs and start the process. To remove the strainer/ diffuser,
I used gasoline and a toothbrush to clean everything up and then blew the screen off with compressed air. Reassembly is opposite but the same as disassembly. Since I will install a
Magnefine in-line filter just before the reservoir, I know I will never do this again so I used a little RTV on both sides of the rubber lid seal to ensure no leaks.