Jimna 284 hydraulic problem

[RonMar]

Thanks everybody for your input! Much appreciated! I have reached the conclusion that the cotter pin side goes towards the resivoir, it would appear that the only way the bypass would engage is with suction from the pump end (at least that is my best guess). I have found and repaired one obvious leak and that has helped a little but I am still getting heavy foaming. Any advice as to how to trace were the other air leaks are comming from (aside from the obvious dripping of fluid)? What is the consensus / best recomendation for sealing the connections......teflon plumbing style tape or some sort of liquid sealant compound?

I use a product called blueseal, that has worked well for me. Should be available in most hardware stores. I think True Value has it as a stocked item. Rated for all oils and most all gases I think.

As for leaks, Did you replace that 1551 filter cartridge? one place you may be drawing in air is around the pump shaft if the inlet is too restrictive/putting vacume where vacume was never meant to be applied... What I am getting at is you may be causing leaks that you will not be able to seal...

From napa's website, I would suggest something like this to replace that 1551 cartridge. https://napaonline.com/Catalog/CatalogItemDetail.aspx?R=FIL7114_0268099628

It is 140 Micron, and you will note that in the important information section of the specs, it says "suction"...

Good luck