Weird oil leak and boost

[highvan]

First off, i just added a MBC to my car, it will only show 9-10psi (it was running around 13 stock) but if i let off the gas and punch it again, it will jump up to 15 psi, which is where i want it at, but then it just just back down to 9psi. Im just afraid to turn the screw in anymore on the MBC, cause i don't want to overboost it, but i do want to run at 15psi Also, when i put the MBC on, i also changed the valve cover gasket, but now i'm having a weird oil leak, which seems to be coming from the lower dish where i have the spark plug wires. Whenever i stop and open the hood, i notice a puddle of oil around the lower part of the dish. I did notice a small hole on the lower right hand side of the dish, it almost looks like you could screw something into it, (maybe for a guage or something) so i put some JB weld type stuff over it to cover it, cause i thought that was where the oil was coming from, but when i got home today and popped the hood, there was oil in there once again HELP Thanks, B

 

[92awddsm]

That hole is there so any excess oil can drain out of the plug valley in the vc. Now, remove the jb weld before the valley fills completely with oil.

As far as the leak, 99% of the time, oil puddles in the valley because of a leaking oil fill cap. You can bend the 2 tabs on the oil cap so it fits tighter as a temporary fix but the best way is to replace the rubber seal on the cap.

Taken from vfaq.com:
"Oil cap - the stock oil cap gasket often hardens to a plastic consistency, causing the cap to leak. You can order a new gasket only, you don't need to order a new cap. The part # for the gasket is MD311638."

http://vfaq.com/FAQlocator-tips.html

I dont suggest stacking the gaskets like stated in the tips.

What mbc did you purchase? I and several people I know have had problems with ebay mbc's and turbo xs mbc's.

 

[highvan]

here is the MBC http://cgi.ebay.com/ebaymotors/Manu...7QQihZ009QQcategoryZ33742QQrdZ1QQcmdZViewItem



and i'm going to try and bend the oil cap taps, but i just bought this oil cap about 3 months ago

 

[92awddsm]

here is the MBC http://cgi.ebay.com/ebaymotors/Manu...7QQihZ009QQcategoryZ33742QQrdZ1QQcmdZViewItem



and i'm going to try and bend the oil cap taps, but i just bought this oil cap about 3 months ago

I had that same mbc once upon a time. I learned my lesson and ended up purchasing a hallman. My boost would spike and fall off with that mbc and it would not adjust over 20psi.

 

[highvan]

Well, i took off that crappy MBC (i'm going to order a Hallman tomorrow) and just went back to the stock set up, but now i'm only pushing 9-10psi still ( I usually run around 13psi with my stock set up???