Hi guys, I have a b18c5 motor that was rebuilt 30,000kms ago and when I take the oil filler cap off the valve cover (while car is running) there is air blowing out which I can feel if I place my hand around 25cm above the hole, Is this a normal amount? No smoke from exhaust, no oil in coolant or coolant in oil. no oil spraying out the pcv or oil cap

 

You can actually take off the oil cap while the car is running? I thought oil would shoot out.

 

try a compression test to get some numbers

 

bump

 

x2

 

there is no blue smoke nor is the car running poorly, compression seems fine without needing to be tested. I wasnt worried by it until a mate said that a little air is ok but I can feel it around 20cm above the oil filler hole and thought that may be over normal

 

also checked my mrs car its a 1.6 ford telstar, it blows air just not as hard. But that could be due to it being a different make and a 1.6?

 

Because you got a vtec motor. LOL

 

So its normal? lol

 

Should be fine

 

what does it have to do with vtec?

 

its normal, your piston is moving up and down causing the pressure

 

I was being sarcastic

 

ahh your a human compression tester. perfect now I can just send you a video of my motor running and you can give me my compression numbers across the board.


you have some blow by obviously. get a compression tester that cost $30-$50 and get some real numbers instead of guessing

 

thats what I figured, guess i need to work on my sense of humor

 

lol yeah a mate is going to bring one from work. Ill be pissed if its BAD compression...only 30,000kms on her