During my research into adding the Accusump, I ran across some complaints from people who had the blow-off valve open and spew oil into their engine compartments. It seems that the common problem for them was the air pressure gauge was allowing pressure to escape, and when oil pressure built, it would cause the piston to slap the back face, sending a shock wave of pressure back through the tube and causing the blow off valve to open.
Well, it took me about 1 week before this happened. I managed to make my trip to Dallas for the GG event without any problems. But the day after I got back, at some point I lost air pressure and sure enough, ended up with an mess of oil. I noticed this because the oil pressure gauge didn't show the pre-lube before start once. So I got to clean up that mess.
For the moment, I have removed the Canton gauge and plugged the hole. Since I have the USCA event this weekend, I wanted to make sure I didn't chance any more problems. This works, I just pressurized the air side and used a tire pressure gauge to bleed down to the pressure I wanted. I can see the pre-lube working, the only downside is that I cannot look and see the pressure on the gauge face right now.
I will order some kind of replacement gauge next week and replace the apparently crappy Canton one. I could run a remote gauge somewhere, but I like the location down low and out of the way. So I'll get a similar replacement gauge.
Cleaning up oil mist isn't a lot of fun...
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