Quote Originally Posted by Bitsyncmaster View Post
I don't see a pressure rating on that plastic valve. Looks like a vacuum type check valve. I would never trust it for 75 PSI fuel.
I'm with you Dave, however, other owners have reported using a similar black plastic unit from China with supposedly great success:



http://www.ebay.com/itm/5-16-8mm-Inl...f5c52a&vxp=mtr

Personally, I wouldn't trust either of these plastic units as far as I could throw them - I just wanted Josh to know that there were many alternative check valves available (although I'm quite certain that he already knew that).

Again, according to DMCH's supplier, my unit shouldn't have a check valve issue. Purchased a little over a month ago via DMC-Midwest. However, I've had quite a few hot start issues since installation. Everything else in the fuel system has either been replaced with new (accumulator, filter, soft lines, one hard line, distributor) or double checked, thus I'm quite certain it's the fuel pump check valve in my new combo unit. We'll find out soon enough I guess...