Hi, i have a Hallman MBC and when i do a boost leak test it have a huge amount of air coming from the pin hole of the MBC...Some say its normal some say its not. I want to know the real answer please.

I have a other boost leak on my TB seals, did someone ever try some ''universal'' o-ring with sucess (same size than OEM) or the only ones that fit well is the OEM ones?

Thanks

 

not sure on the hallman but milspec sells seals to fix your tb

 

When you perform a boost-leak test you are supposed to cap off the vac. hose going from wastegate/mbc . Thats why it's leaking lol

 

Ok MBC problem solved (replace the 2 O-ring behind the 2 nipples and opened the MBC to clean inside)

For the TB seal i will order OEM ones it would be working

Thanks for the fast reply's!

 

Your going to order OEM tb seals? There is no point in doing that because they leak from the factory.. get the Milspec Tb seals.

 

Don't waste your money on OE seals, they're just going to leak again eventually. Like the poster said above me, go with the mil-spec shaft seals and don't look back. It's around $20 for both seals and they are made 10x better than the OE ones.

 

tighten the hallman down when you do a boost leak test and it wont leak

 

Ok thanks fot the tips

 

Mil.Spec for sure on the TB seals, the OEM ones are worthless.

 

60 000 miles are not too bad for OEM... But yeah i will go Mil spec for sure