|
|
|
Re: BB oil pump failure
[Re: JohnRR]
#1457460
06/24/13 11:39 PM
06/24/13 11:39 PM
|
Joined: Nov 2003
Posts: 12,521
Western Colorado High Desert
moparmarks
OP
I Live Here
|
OP
I Live Here
Joined: Nov 2003
Posts: 12,521
Western Colorado High Desert
|
Quote:
Quote:
If that happened, the car would not run or at least start backfiring and all that, no? 
Why would it? The shaft spinning the oil pump is spun by the gear which is spun by the cam and kept from coming up by the distributor. You could drop just a gear in there with no oil pump shaft and the engine would run ... not for very long though
Guess maybe if the shaft broke right at the drive gear it might allow the drive to move out of it's spot then it would not run. If the shaft broke below the in block bushing then it should still run. If the shaft is spinning in the gear the motor should still fire.
72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, . Moparmarks Parts & Restorations Desert Mopar Metal Grand Jct. CO 970-261-7039 http://moparmark.com/motormangj@gmail.com
|
|
|
Re: BB oil pump failure
[Re: dogdays]
#1457462
06/25/13 12:17 AM
06/25/13 12:17 AM
|
Joined: Dec 2008
Posts: 2,782
USA
JoesMopar
master
|
master
Joined: Dec 2008
Posts: 2,782
USA
|
Quote:
Pressure relief valve stuck open.
It's a positive displacement pump. That pump is simplicity itself. If the rotor turns, it pumps. If the inlet is clogged, it pumps nothing. If the outlet is plugged, it pumps until something gives.
If the shaft is spinning in the rotor, you'll see something. Either it'll weld itself back on (friction welding) or it will make the hole bigger.
Pressure relief valve stuck open means pump pumps, oil goes right back into crankcase. Engine sees no pressure. Judging from the appearance of the pump, that's what happened.
R.
^^^This
|
|
|
Re: BB oil pump failure
[Re: 4406bbl]
#1457465
06/25/13 03:38 PM
06/25/13 03:38 PM
|
Joined: Feb 2003
Posts: 10,304
Someplace you aren't
SomeCarGuy
I Live Here
|
I Live Here
Joined: Feb 2003
Posts: 10,304
Someplace you aren't
|
I also had a Melling pump fail about five years ago. Worked for most of a summer, then it died pulling into the garage. Thankfully I was home and the engine was idling.
I want my fair share
|
|
|
|
|
|
|
