Club Cobra Keith Craft Racing  

Go Back   Club Cobra > Engine Building, Tuning, and Induction > Small Block Talk

MMG Superformance
Nevada Classics
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
MMG Superformance
MMG Superformance
Advertise at CC
Banner Ad Rates
MMG Superformance
MMG Superformance
MMG Superformance
December 2024
S M T W T F S
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31        

Kirkham Motorsports

Reply
 
LinkBack Thread Tools Rate Thread Display Modes
  #1 (permalink)  
Old 06-18-2009, 09:50 PM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2006
Location: Oakville, Ont
Cobra Make, Engine:
Posts: 322
Not Ranked     
Default oil has slight smell of fuel

what would cause the oil tohave a slight smell of fuel?

carb dumping too much fuel? carb not properly set?
Reply With Quote
  #2 (permalink)  
Old 06-18-2009, 10:05 PM
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: May 2006
Location: Manteca, Ca.
Cobra Make, Engine: None, sold it
Posts: 2,439
Not Ranked     
Default

maxum 101

If you have a stock mechanical fuel pump, the diaphram could be bad letting fuel drip into the oil pan.

Do not drive or start this vehicle until you find out what this is.

Terry
Reply With Quote
  #3 (permalink)  
Old 06-19-2009, 12:28 AM
Rick Parker's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2001
Location: California, Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
Not Ranked     
Default

Drain and replace the oil and filter without fail, for no other reason that the fuel will compromise the lubrication qualities of the oil, and risk damage to the bearings. Its possible that as mentioned fuel may be entering via the fuel pump or what is more common is that the carb is set up rich and unburnt fuel is getting past the rings, check the color of the plugs.

As an example: I'm sure this is not the case with your particular car but once I was witness to a fellow doing a Tune-up on a 3 or 4 year old 74 Torino with a 351 that had been badly neglected as far as routine maintinence goes. This guy was sort of a crusty guy, you know the type: Burley chested, heavy smoker, wearing coveralls in his late 50's or early 60's. Well, while he was working under the hood with the car idling the fuel in the crancase oil ignihted and literally exploded with enough force to tear the sheet metal valve covers loose from the surrounding bolts that hold them on, same thing for the pan and several of its bolts. It rung this guys bell so hard he left for the rest of the day. You do NOT want to ever experience this.
__________________
Rick

As you slide down the Banister of Life, may the splinters never be pointing the wrong way

Last edited by Rick Parker; 06-19-2009 at 01:43 AM..
Reply With Quote
  #4 (permalink)  
Old 06-19-2009, 12:41 AM
PANAVIA's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2008
Location: San Jose CA, CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
Not Ranked     
Default

or a leaky carb or heat situation that has the fuel going down the intake with the car off. - ricks point on the oil is a good one, you dont want to bathe the bearings in gasoline diluted oil .. very baaaaddd.
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
Reply With Quote
  #5 (permalink)  
Old 06-19-2009, 06:23 AM
CobraEd's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2000
Location: Northern VA, VA
Cobra Make, Engine: Classic Roadsters
Posts: 2,765
Not Ranked     
Default

first check the diaphram in the fuel pump. it is a direct link between the oil & gas


.
__________________
LIFE IS TOO SHORT TO WORRY ABOUT GOOD GAS MILEAGE
________
Utinam logica falsa tuam philosophiam totam suffodiant!
________
Reply With Quote
  #6 (permalink)  
Old 06-19-2009, 09:20 AM
patrickt's Avatar
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,005
Not Ranked     
Default

Quote:
Originally Posted by CobraEd View Post
first check the diaphram in the fuel pump. it is a direct link between the oil & gas.
Yep, my money's on the fuel pump. BTW, this is another example of why you should send in an oil sample -- to check for coolant and fuel in the oil. Coolant, of course, should not be in the oil at all, and fuel levels you should be under 1 or 2 PPM. Here's a typical report with the coolant and fuel report at the very bottom.

Reply With Quote
  #7 (permalink)  
Old 06-19-2009, 11:11 AM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2006
Location: Oakville, Ont
Cobra Make, Engine:
Posts: 322
Not Ranked     
Default

thanks for the posts

whats involved in removing the fuel pump? do i need to get a new gasket or anything like that. anything to watch for when removing it or putting it back?

i figure ill start with checking for a leaking diaphram first.
Reply With Quote
  #8 (permalink)  
Old 06-19-2009, 11:40 AM
CobraEd's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2000
Location: Northern VA, VA
Cobra Make, Engine: Classic Roadsters
Posts: 2,765
Not Ranked     
Default

two bolts & the in and out fuel lines

.
__________________
LIFE IS TOO SHORT TO WORRY ABOUT GOOD GAS MILEAGE
________
Utinam logica falsa tuam philosophiam totam suffodiant!
________
Reply With Quote
  #9 (permalink)  
Old 06-19-2009, 11:42 AM
patrickt's Avatar
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,005
Not Ranked     
Default

It's an easy job, but I didn't see what kind of engine you have. Here's a pic of mine on the side of my FE. You just unbolt it and pull it out. Now, on the off-chance that you have an electric fuel pump, don't go to the trouble of messing with it.

Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 07:38 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy
Links monetized by VigLink