eschrom
Well-Known Member
I’m hoping a few VW experts out there can offer an opinion…
The valve at the pump end of the case directs oil either to the cooler or around it. Cold, thick oil means high pressure, causing the valve to open and oil to flow directly to the gallery. But after the oil is hot the pressure drops and the valve closes, forcing oil through the cooler before it goes to the gallery.
In my case the pump is modified for full flow and the cooler ports are plugged. So what purpose does the valve serve in that case? What will it hurt to remove the spring entirely, as long as I make sure the drain back to sump is blocked so the oil can’t short circuit? Has anyone ever tried that?
The reason I’m interested is that I’ve learned that quite a high pressure spike is needed to initially open the valve, about 80 psi. I would like to avoid that spike on my remote mounted cooler and filter, which are upstream of the valve.
Any thoughts?
Thanks,
Ed
The valve at the pump end of the case directs oil either to the cooler or around it. Cold, thick oil means high pressure, causing the valve to open and oil to flow directly to the gallery. But after the oil is hot the pressure drops and the valve closes, forcing oil through the cooler before it goes to the gallery.
In my case the pump is modified for full flow and the cooler ports are plugged. So what purpose does the valve serve in that case? What will it hurt to remove the spring entirely, as long as I make sure the drain back to sump is blocked so the oil can’t short circuit? Has anyone ever tried that?
The reason I’m interested is that I’ve learned that quite a high pressure spike is needed to initially open the valve, about 80 psi. I would like to avoid that spike on my remote mounted cooler and filter, which are upstream of the valve.
Any thoughts?
Thanks,
Ed