Originally Posted by
wikitjuggla
I was planning on buying it anyway. I'm way to lazy to go through that work. All i know is, with the air test, engine leaks at the front bearing but when the engine is running, oil/fuel doesn't leak out, if its not leaking outwards, it must be drawing atmosphere inwards. I read on another thread that blocking the little hole that sits right behind the bearing helps make the engine leak oil through the front bearing instead of drawing it in. If that is true, at least that would be a permanent fix which would never need to be regreased or fiddled with again
If you think your engine is leaking all you have to do is gently spray a little brake cleaner towards the engines front bearing while the engine is running...If the engine stalls instantly you know your engine is drawing in atmosphere...its pretty simple to test......Then if you are leaking you can block the bypass and then retest with the brake cleaner again...Usually plugging the bypass will make a big difference in how well the engine handles the brake cleaner test..But where plugging the bypass really comes into full effect is when the engines are run hard with an aggressive( lean ) race tune...By doing this we are seeing a huge increase in front bearing life , to the point front bearings are often lasting the entire lifetime of the engines, even in very dusty conditions...... Only downside is if your tuned rich and not driving hard the engine will want to leak out the front...But IMO that is a small penalty to pay for the extra protection it offers when you run the engines hard and lean.....