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No Oil Pressure - Fresh Rebuild

  • Thread starter Thread starter Bullitt
  • Start date Start date Jul 6, 2009

Bullitt

Packin' Heat
Founding Member
Jan 13, 2000
2,743
0
47
Houston, TX
Jul 6, 2009
#1
  • Jul 6, 2009
  • #1
Just got done putting together an 85 roller 302 and got no oil pressure on startup.

What was done:

Block decked, new cam bearings, new crank bearings, new pistons, new rings, new lifters. Same heads and oil pump as when it ran before.

Everything went together real easy except for one of the oil gallery plugs on the front of the engine (went in cockeyed, but pulled it out and got it in straight). Bearing clearances were all within spec.

Start up / Diagnosis:

Ran the pump for quite a while and it never built pressure on the gauge (yes, it was turning the correct direction). It's clearly moving some oil as when you pull the hose going to the pressure gauge you get oil squirting out. Got it started, let it run for 5 seconds and still no pressure (lifters were ticking, so clearly no oil to the valve train).

Pulled the timing cover and all the galley plugs are in place, none have backed out.

What else could it be? Bad filter??? I'm stumped for ideas here guys!
 
H

htwheelz67

Member
May 18, 2007
444
0
16
mission viejo ca.
Jul 6, 2009
#2
  • Jul 6, 2009
  • #2
did you make sure the galley plug at the rear under the intake is in?
 

Bullitt

Packin' Heat
Founding Member
Jan 13, 2000
2,743
0
47
Houston, TX
Jul 6, 2009
#3
  • Jul 6, 2009
  • #3
no..... you wouldn't happen to have a picture of it?
 

Rusty67

20+ Year Stangneter
Dec 3, 2002
3,749
37
109
LA, CA
Jul 7, 2009
#4
  • Jul 7, 2009
  • #4
How were you running the pump ? Did you attach a drill to the drive shaft of the pump and spin it for a while ? If you have a mechanical oil pressure gauge that you can hook up and try to prime the pump, you will get better results then using an eletric gauge.
 
H

htwheelz67

Member
May 18, 2007
444
0
16
mission viejo ca.
Jul 7, 2009
#5
  • Jul 7, 2009
  • #5
its located at the rear of the block right where the end rail of the intake is, where you would put silicone or cork seal, it is about 1/2 inch. It connects the oil galleys for the lifters. You will ahev to pull the intake to get to it.
 

dennis112

15 Year Member
May 15, 2005
1,561
36
79
Amish Wonderland of Central PA.
Jul 7, 2009
#6
  • Jul 7, 2009
  • #6
Bullitt said:
no..... you wouldn't happen to have a picture of it?
Click to expand...

 

Bullitt

Packin' Heat
Founding Member
Jan 13, 2000
2,743
0
47
Houston, TX
Jul 7, 2009
#7
  • Jul 7, 2009
  • #7
Dennis, that's the missing piece. I wasn't around when my buddy put on the intake and we had that plug leftover. Looks like we found the home.

Thanks!! :SNSign:
 

Rusty67

20+ Year Stangneter
Dec 3, 2002
3,749
37
109
LA, CA
Jul 7, 2009
#8
  • Jul 7, 2009
  • #8
Good call man !
 
H

htwheelz67

Member
May 18, 2007
444
0
16
mission viejo ca.
Jul 7, 2009
#9
  • Jul 7, 2009
  • #9
I thought so........I made that mistake once on my second ever rebuild and same symptoms it is probably the most overlooked galley plug.
 

dennis112

15 Year Member
May 15, 2005
1,561
36
79
Amish Wonderland of Central PA.
Jul 8, 2009
#10
  • Jul 8, 2009
  • #10
Bullitt said:
Dennis, that's the missing piece. I wasn't around when my buddy put on the intake and we had that plug leftover. Looks like we found the home.

Thanks!! :SNSign:
Click to expand...

Cool, glad to help.
 
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