i have a b18a block with a b16a head, pr3 pistons stock rods, arp rod bolts, and for some reason i cant get my oil pan not to leak! are the blue felpro gaskets no good for higher compression ratios than stock? ive tried torque'n down to the 8.9ft lbs witch is i think like 104 in lbs or something or another, that didnt work so i tightened it more and same problem, (its probley overtightened now!) What do u guys prefer on oil pan gaskets! im runnin around 11.5:1 CR and im wondering if this has any sayso on oil pressure! not too familiar with all the psi and stuff in the bottom end, oh and i did buy a moroso oil pan with the two extra bungs on it and my leak is commin from the back around the intermediate shaft.

 

The compression has nothing to do with your leaking oil. Your torque specs look good as well. Do not overtighten or you risk snapping a stud. Also, the gasket will get pinched at the overtightened bolt and it will leak.

I have found that if I just dry seal the oil pan gasket, it leaks. I use a thin layer of hondabond to get a better seal and I haven't had any problems.

 

did u use the honda bond between the block/gasket or gasket/pan?

 

x2 - compression ratio and oil pressure have nothing to do with leaking at the oil pan. The pan is not pressurized, it only sees crankcase pressure.

Speaking of crankcase pressure, how is your PCV system working? Catch-cans hooked up in any configuration different from stock? PCV valve working OK?

Depending on year/version, there's little steel spacer rings around each bolt/stud for the oilpan. Did you leave one on, so now there's 2 of them stacked on the same bolt??

 

actually the motor was given to me with the oil leak already there, and im trying to fix it i know the stock factory used shims and there are not there at all, it is a first gen b18 it had a fresh rebuild on the bottom end but was over revved and spun a bearing, and i had to get all that fixed just tryna fix my oil leak, i just got a new pcv valve hose, and the pcv valve wasnt too bad just the way it was previously hooked up made it useless, they put the stock pcv valve in a heater hose and slid it over the stock pcv valve hose wich was broken and heat treated hard and broke off like molded plastic, i dont believe there are any steel spacers on there other than whats on the stock bolt threads would you guys recommend a oil pan stud kit and change the whole pan to just studs?

 

i didnt even know about the metal spacer things until i started reading reasons why they leak, do u have any pics of these?

 

Don't know whether hondaautomotivparts.com would show them, you could try.

They're like steel washers, possibly embedded in the rubber oilpan gasket.