oil pump problem

D

davesgt

New Member

Aug 20, 2005

3

0

0

Sep 9, 2005

#1

• Sep 9, 2005

• #1

i just recently rebuilt the motor in my 01 cobra and when i started the car it had good oil pressure i took the car for a ride and came to a stop sign i lost all oil pressure and the motor started to knock i pulled out and it made oil pressure again can any one tell me if you had this happen before or mabe you know what i can try to fix this (and yes the motor had oil in it )thanks dave

 

sgarlic

Founding Member

Apr 21, 2001

3,085

1

56

Sep 10, 2005

#2

• Sep 10, 2005

• #2

So it's been fine since? I was going to ask if you primed the oil pump before you installed it.

 

B

bdcardinal

tree hugger

Jun 10, 2003

3,612

16

69

santa barbara, CA

Sep 10, 2005

#3

• Sep 10, 2005

• #3

you dont prime the oil pump on a 4.6 before you install it. its splined to the front of the crankshaft. the nice thing about that is as long as the crankshaft turns, the oil pump turns.

 

sgarlic

Founding Member

Apr 21, 2001

3,085

1

56

Sep 10, 2005

#4

• Sep 10, 2005

• #4

Wow, never heard of an oil pump you don't prime first.

 

B

bdcardinal

tree hugger

Jun 10, 2003

3,612

16

69

santa barbara, CA

Sep 10, 2005

#5

• Sep 10, 2005

• #5

all you do on a 4.6 pump is put it on the block, finish the rest of the motor, fill the motor with oil and fire it up. if you feel you really want to prime it, yank the coil connectors and the fuel pump relay and turn the motor over. i know when i build mod motors, i am very liberal with the bearing lube, so initial dry startup isnt that bad.

 

White Stang

Member

Feb 11, 2004

467

0

16

Ft Lauderdale

Sep 11, 2005

#6

• Sep 11, 2005

• #6

bdcardinal said:

all you do on a 4.6 pump is put it on the block, finish the rest of the motor, fill the motor with oil and fire it up. if you feel you really want to prime it, yank the coil connectors and the fuel pump relay and turn the motor over. i know when i build mod motors, i am very liberal with the bearing lube, so initial dry startup isnt that bad.

Click to expand...

I would pull the coil connectors and give it 3 cranks why even risk it on a 7 grand motor Would you put a yaht in the ocean without breaking a wine bottle on the bow

 

Gearbanger 101

Straight Outta Locash

20+ Year Stangneter

Aug 10, 2002

9,457

1,377

234

Ontario, Canada

Sep 11, 2005

#7

• Sep 11, 2005

• #7

bdcardinal said:

you dont prime the oil pump on a 4.6 before you install it. its splined to the front of the crankshaft. the nice thing about that is as long as the crankshaft turns, the oil pump turns.

Click to expand...

Actually, you can prime the oil pump on a 4.6L. Prime it with the fill holes and then tape them shut until installed and ready for use.

 

K

Kilgore Trout

Fried or Broiled ?

10 Year Member

Mar 30, 2005

4,749

95

134

Sep 11, 2005

#8

• Sep 11, 2005

• #8

Gearbanger 101 said:

Actually, you can prime the oil pump on a 4.6L. Prime it with the fill holes and then tape them shut until installed and ready for use.

Click to expand...

Haha, only a Ford tech would know that one. What kind of tape...?

 

Gearbanger 101

Straight Outta Locash

20+ Year Stangneter

Aug 10, 2002

9,457

1,377

234

Ontario, Canada

Sep 11, 2005

#9

• Sep 11, 2005

• #9

Hahahaha....not a Ford Tech, I just remember reading in an old MM&FF article and broke it out of the cobwebs before I put my engine together. I used some electrical tape on mine, but I would imagine you could use whatever will stick.

 

sgarlic

Founding Member

Apr 21, 2001

3,085

1

56

Sep 11, 2005

#10

• Sep 11, 2005

• #10

Thought so. And give Tom his T-fitting back already.