I have changed my pcv valve and replaced my blown intake manifold gaskets, but there still seems to be fuel getting into my oil. What else should I look at?

------------------
1988 Camaro RS
2.8L five speed
Money pit from hell!!

1988 Camaro
2.8L automatic
t-tops
160* THERMO
Rapid fire plugs

 

Maybe you should change your oil ? If all the gaskets are fine, you might have bad rings.

 

Already changed the oil two times.

------------------
1988 Camaro RS
2.8L five speed
Money pit from hell!!

1988 Camaro
2.8L automatic
t-tops
160* THERMO
Rapid fire plugs

 

bad mechanical fuel pump? bad FPR?, injector stuck open?

------------------
ICON Motorsports

1st & 3rd

 

My dad's 2.8 motor had a bad computer... the bad ECM was locking the injectors open, and getting fuel into the gas. I had a fuel pressure gauge on the motor, and pressure would build up, then bleed off. I thought it was a bad check-valve in the pump itself... glad we brought it to a mechanic for him to change the pump! I would've replaced the pump and the car still wouldn't have ran.


------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

I'm guessing the 88 2.8L is Throttle Body Injected, not sure when they quit putting carbs on Camaros. I know on TPI cars if your injectors or clogged or malfunctioning gas can be squirted, rather than atomized, in the combustion chamber. If the fuel is not ignited it may be getting past your rings and into the crankcase. Pull your sparkplugs, they should be black if what I'm saying is true. As Blade suggested, your rings could be worn. How many miles on this engine? Anybody - could improper installation of the intake gasket be causing this problem?

 

"My dad's 2.8 motor had a bad computer... the bad ECM was locking the injectors open, and getting fuel into the gas"

Too funny, Tom hehe

Most then likely it's the rings associated with a leaky injector...

------------------
92 Z28 L98 350
---------------
Ported stock heads, XR270HR-10 cam, TES headers, Crane AFPR, Flowmaster catback, MSD ignition components, #24 SVO injectors.
Best ET 13.3@107 mph
"Take that auto, drop it in first, hold the brakes, stomp the gas and grin from ear to ear! :-)
Click here to see my car at Truspeed.org

Check out TruSpeed at http://www.truspeed.org
Check out the Bin Archive at http://www.truspeed.org/bins.html

 

I got the car from a guy who didn't know much about it. He didn't know if the engine was original or replaced. Since my odomiter dosen't go up to 100,000 miles I can't be sure. But i'd guess it's 166,000 miles.

------------------
1988 Camaro RS
2.8L five speed
Money pit from hell!!

1988 Camaro
2.8L automatic
t-tops
160* THERMO
Rapid fire plugs

 

166,000 miles?!?!?! consider yourself lucky, most 2.8's didn't make it past 100,000 miles.
are you sure it is fuel getting into your oil? does the oil smell strongly of fuel? does it run good? sounds like bad rings or it is running too rich.

 

It dosen't seem to be running too rich. The oil smells strongly of fuel. The car runs well.

 

then i am stumped. does it have alot of blow-by? (if you pull off the oil fill cover when it's running, does alot of air and smoke come out?)

 

My friends 90 Firebird 2.8L went 260,000 miles before the engine mount broke and his oil pan ripped open, killing the engine. It probably would have gone 350,000 if the pan would have stayed in tact.

------------------
84 Camaro ZZ4 with HOT cam. 1.88 60' (12.98 @ 105MPH E.T.)
Other Mods: You name it and I have probably changed it.

2001 Dodge Ram Quad Cab 5.9L 4*2

ASE Certified Auto Tech
LIVE AND DIE BY THE ALMIGHTY BOWTIE!

[This message has been edited by CamaroMike (edited February 03, 2001).]

 

Sorry it took me so long to reply. No there's no blow back. The oil pressure seems to be a little low. It sits right at the line before the red.

[This message has been edited by HIX5000 (edited February 05, 2001).]

 

D'oh! Good catch, Blade. I guess I didn't have enough coffee that day, eh?

87KevRoc, GM's last year for a carb'd f-body 2.8 was '84, they moved to Multiport injection in '85.

MrF-Body, I'm at 210,000 miles on my original 2.8, and still going! The only thing I've done that's semi-internal was the timing chain, at around 180k miles.


------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

well i'm impressed with all of you that have ggod 2.8's guess i was just lucky enough to own or work on all of the bad ones.lol

------------------
have a beat to hell 87 GTA 305ci 700r4
t-tops,recaro,honeycomb wheels,digital dash
paid $600 at a junkyard for it (i had to save it)