i searched and didn't find anything in the prelude section, but in civic/teg/cord sections i'm finding this is normal.

i was immediately worried that my piston rings were fried, so i did a comp test and still 180 across the board (boosted F22). so i searched and found "every honda does this".

except i did this to my old mans '04 TL, and absolutely NO AIR what-so-ever comes out.

so is this normal or no?

 

Some air will be normal, you will be able to feel it. What you do not want is excessive air, that would indicate excessive blow-by. All engines will do it, even brand new ones from the factory that have never been ran. Its caused by they fact that the rings never perfectly seal, partially because of the ring gap which allows stuff to flow past it.

 

i would say its between normal and excessive. but a compression test would without a doubt pickup blow-by. sure two of the cylinders leaked compression a bit faster, but they were all between 177-180.

it just worried me cuz the '04 TL didn't have ANY air!! gonna go try with moms '00 TL right now haha.

 

well i dont kno wat kind of rings the TL has but there are these piston rings that are called gap-less rings. They work the way the name implies. They have only about 1-2% leakage, whereas normal rings have anywhere from 5-10% I believe. So I dont kno if the TL has those rings or not. The compression test will only really tell you if you have a problem with your rings/piston, or if the problem is in your head. For accuracy you would want to do a leak down test, which would tell you where you are having air leak.

 

how would a gap-less ring be able to be put onto the piston ? .. unless ofcourse if the piston has them built-in .. never seen a gap-less ring, don't think it exists, could be wrong though.

OP, the smartest thing you could do at this point is to check your compression and to install a vented catch-can setup, especially if you got turbo.

Edit: I just noticed you already did the compression test and got good numbers .. just install the vented catch-can setup and your problem should resolve.

 

I dont mean to be an *** but Gapless rings do exist. My engine building teacher game me a packet on the stuff. They still spread open and closed, but between the gap there is another smaller ring which helps close the ring. http://www.totalseal.com/ ......http://www.totalseal.com/SearchByApplication.aspx

 

^ that's interesting.

 

Those rings have only 0-1% leakage when used... or so it says in the packet that came from the site lol.

 

didnt see anything for an Hseries motor?

 

O I looked at the link I posted, it doesnt show up the applications, just select Honda and for make it will be the third one from the top of the list.

 

does anyone know how much psi does a stock h22a4 is supposed to have? i have 190 in each cylinder..

 

Yeah it's a typo, says "22a4" instead of "H22a4",

"2.2 VTECH 22A4, H23A1 2259CC"
thats for H series

 

it'll vary depending on elevation, what kinda tester your using, and others, but yours sounds perfectly healthy. no worries.


but i'll try to do a leakdown when i can. if this motor is on its way out, i'm building a spare f22 on the side. oh wellll