blow by

FORD E-150 · #1 (**permalink**) 05-11-2009, 12:40 PM

my 1992 ford e-150 5.0 302
im geting blow by exhust coming out the oil fill tube
i had took it ford they told thats not good thats whats couseing my pinging but that can;t be to to i took all plugs out i found two with
oil 6 cyl & 4 cyl it only has 78k on it im hoping its the valve stem seal
i hope then i will a compression test on all cylinders and let you know
whats what and allso i have a ratle of the timeing chain may be that is caouseing the pinging but not sure any help please

Corner Gas · #2 (**permalink**) 05-14-2009, 06:19 PM

First of, not to be rude but you are in the wrong section. To answer your questions though. 1 check your pcv valve it may be plugged and causing blow by, if not it could be rings or valve seals. As for the pinging that is usually because your timing is to far advanced. The rattling could be your wrist pin.