• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

79 ford ranger F150


RedNeck Glory

New Member
Joined
Feb 6, 2009
Messages
20
Reaction score
0
Points
0
Location
elizabeth
Vehicle Year
1991
Make / Model
FORD
Engine Size
4.0
Transmission
Manual
it is getting gas in the oil and shooting flames out of the carbi am think it is the fuel pump any suggestions
 


rusty ol ranger

rusty ol ranger

2.9 Mafia-Don
Supporting Member
Joined
Sep 22, 2007
Messages
12,398
Reaction score
7,492
Points
113
Location
Michigan
Vehicle Year
1987
Make / Model
Ford
Engine Type
2.9 V6
Engine Size
177 CID
Transmission
Manual
2WD / 4WD
2WD
My credo
A legend to the old man, a hero to the child...
Gas in the oil?

Does it have the factory motorcraft carb? My guess is the power valve has ruptured and its getting waaaay overfueled.

later,
Dustin
 
pillen140

pillen140

Well-Known Member
Joined
Jan 1, 2008
Messages
3,263
Reaction score
45
Points
48
Age
38
Location
winston-salem, NC
Vehicle Year
1995
Make / Model
ford
Engine Size
3.0
Transmission
Manual
i would agree with the over fuelled. check the carb float.
 
Jrrrrrr

Jrrrrrr

New Member
Joined
Apr 1, 2008
Messages
26
Reaction score
0
Points
0
Location
Michigan
Vehicle Year
1997
Make / Model
Ford
Engine Size
3.0
Transmission
Automatic
Pretty sure it is not the fuel pump. Definatly sounds like to much fuel if it is in the oil.
 
rusty ol ranger

rusty ol ranger

2.9 Mafia-Don
Supporting Member
Joined
Sep 22, 2007
Messages
12,398
Reaction score
7,492
Points
113
Location
Michigan
Vehicle Year
1987
Make / Model
Ford
Engine Type
2.9 V6
Engine Size
177 CID
Transmission
Manual
2WD / 4WD
2WD
My credo
A legend to the old man, a hero to the child...
Power valve power valve power valve.

My 79 i had had did the same thing.

Its supposed to open with vaccum at full throttle to let fuel bypass the throttle plates to give the engine more. If its ruptured your engine is getting as much fuel as it needs at full throttle at idle.

later,
Dustin
 
Ruffinit

Ruffinit

Member
Supporting Member
U.S. Military - Veteran
Joined
Oct 22, 2007
Messages
264
Reaction score
1
Points
18
Location
Muscatine, Iowa
Vehicle Year
1996, 2003
Make / Model
Ford
Engine Size
4.0, 2.3 Duratec
Transmission
Manual
+1 to Rusty.. Power valve is only about $20 and if it hasn't been replaced before it's probably due.. Check the vacuum hose to it, it'll probably have fuel in it also, that's how the fuel gets into the oil via the manifold.

As for your fuel pump question, this is going to be a manual fuel pump, so it's only going to put out 5-7 psi anyway.

After you square this away, do a tuneup on the carb using your manual and then do it a second time taking your time.
 
Will

Will

Forum Staff Member
TRS Forum Moderator
Joined
Nov 30, 2001
Messages
6,924
Reaction score
514
Points
113
Location
Gnaw Bone, Indiana
Vehicle Year
2007
Make / Model
Toyota
Engine Size
4.0
Transmission
Manual
rusty ol ranger said:
Power valve power valve power valve.

My 79 i had had did the same thing.

Its supposed to open with vaccum at full throttle to let fuel bypass the throttle plates to give the engine more. If its ruptured your engine is getting as much fuel as it needs at full throttle at idle.

later,
Dustin
Click to expand...
It could be the power valve. Needle and seat is another thing to check.

The power valve is actually held closed by manifold vacuum. The diaghram over-powers the spring and closes the valve. When you toe the pedal, the vacuum drops and the spring starts to win, allowing the valve to open. When you tune the carb you are changing the spring rate to adjust how much vacuum drop it takes to open the valve. A ratty camshaft that idles at a low vacuum signal can sit there with the powervalve open because it doesn't have enough vacuum to close it. It can play merry hell with your carb tuning if you don't think about it. Anyway, it's a transitional metering aid; the next step after the accelerator pump, and meant to keep the mixture in check before the main circuit comes online, not a full-throttle meter.
 
Last edited:

dstoffel2

New Member
Joined
Jun 30, 2009
Messages
2
Reaction score
0
Points
0
Location
Allenton WI
Vehicle Year
1989, 1979, 197
Make / Model
All Fords
Engine Size
2.9 5.8 351m
Transmission
Manual
Still check your fuel pump i have seen them leak gas and fill the motor full of gas. There is suppose to be a weep hole somewhere but that usually gets blocked. So instead of leaking out the hole it fills the motor.
 
You must log in or register to reply here.

Sponsored Ad


Sponsored Ad

Staff online

Members online

Total: 661 (members: 6, guests: 655)

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Latest posts

Truck of The Month


Shran
April Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Follow TRS On Instagram

Latest Album Photos

Hunters
20240409_190831.jpg
20240409_190818.jpg
20240409_180824.jpg
20240409_182648.jpg
20240409_181010.jpg
20240408_175026.jpg
99 Ranger
20200706_161414.jpg
20240207_155117.jpg
20240207_155111.jpg
20240207_154537 - Copy.jpg

TRS Events

25th Anniversary Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top