|
Register or Log In To remove these advertisements. |
|
|
|
|||||||
 |
|
|
Thread Tools | Display Modes |
06-29-2004, 05:57 AM
|
#1 |
|
Truck addict
Join Date: Sep 2003
Location: Lincoln, California
Posts: 497
|
gasoline in engine oil?
I read somewhere that if you fuel pump went bad due to a ruptured diaphram, then there could be gas in your oil. Is this true? If so how could you tell? How could gas even get into the oil sump?
__________________
1956 Chevy Napco 1972 Cheyenne Super 1970 K20 |
|
|
|
06-29-2004, 06:47 AM
|
#2 |
|
Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,510
|
Yes, it is true.
__________________
Tim |
|
|
|
|
06-29-2004, 07:46 AM
|
#3 |
|
Watch out for your cornhole !
 
Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
|
The fuel leaks into the fuel pump cavity in the block through the busted diaphram.
You can usually smell the gas in the oil if you sniff the dipstick. If you suspect it, just put a new fuel pump on. They are less than 20 bucks at the parts store. For me, a fuel pump is practically a maintenance item. I hate being stranded.
__________________
I'm on the Instagram- @Gearhead_Kevin |
|
|
|
|
06-29-2004, 08:16 AM
|
#4 |
|
Old Skool Club
Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
|
You can definately smell it. Besides the fuel pump entry point, the more common way is what gets past the carburetor. If (for instance) you have a Q-Jet, AND it leaks (like they're prone to do), OR you have flooded your carburetor, the excess gasoline can find it's to the crankcase. If your carb tends to run rich, it is possible, too. Doesn't always happen, just that it is possible.
I had an Edelbrock 1405, that was "jetted for performance" (brochure). It ran rich. You could tell by the odor of the exhaust. The oil smelled like gasoline, and it seemed to be thin. I changed to an Edelbrock 1901 Q-Jet, and the mixture leaned out and no more gas in the oil.
__________________
Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. |
|
|
|
|
06-29-2004, 02:52 PM
|
#5 |
|
Truck addict
Join Date: Sep 2003
Location: Lincoln, California
Posts: 497
|
Shouldn't the oil be changed if you smell gas in it?
Tx Firefighter I did change the fuel pump. Do all fuel pumps have a return spring on the rocker arm, when I pulled my old one off it did, but the new one I put on didn't?
__________________
1956 Chevy Napco 1972 Cheyenne Super 1970 K20 |
|
|
|
|
06-29-2004, 07:38 PM
|
#6 | |
|
Account Suspended
Join Date: Mar 2001
Location: Virginia Beach, Va. U.S.A.
Posts: 15,320
|
Quote:
|
|
|
|
|
|
06-29-2004, 09:00 PM
|
#7 |
|
Got Horsepower?
Join Date: Sep 2003
Location: IDAHO
Posts: 406
|
when mine went bad it put gas in the oil and oil into the gas
__________________
2001 Dodge 2500 Cummins, 4 inch lift, 35" Toyo MT's on Ultra wheels, P-Pump Conversion, AFE intake, Fass, 5 inch exhaust, Pyro,Boost,and Fuel pressure guages, and a whole bunch of other stuff "The Money Pit" SOLD-71 Chevy C10 long bed- 2/4 drop-- 350,th400, Edelbrock performer RPM intake,Edelbrock 600 CFM carb,Crower 240 cam,port and polish,Dynomax headers,HEI ignition,dual 2.5 inch exhaust with Flowmaster 50 series mufflers |
|
|
|
|
06-29-2004, 09:09 PM
|
#8 |
|
Franko72
Join Date: May 2004
Location: Cincinnati,Ohio
Posts: 471
|
you should have gained a smelly mix of oil and gas higher on the dip stick full mark. that is an easy way to check for ruptured diaphragm in pump. do a fuel line pressure check. should be 5 to 7 psi.Or just buy one like tx firefighter said.Hey TX I am a sprinkler pipefitter here in Cincy.
__________________
 1972 C20 cheyenne Super 402 BB/400 turbo LWB A/C Tilt, Cruise Control, Saddle tanks, Tach My Home Page Better to burn out than it is to rust |
|
|
|
|
| Bookmarks |
| Thread Tools | |
| Display Modes | |
|
|
Linear Mode
