case 450 charge pump

[tmoore45acp]

my case 450 will not pull-have changed suction hoses and all filters-should charge pump have suction when you put your hand over suction side of pump? have no torque converter pressure

 

[Anonymous-0]

with oil in it you will dry not a lot

 

[tmoore45acp]

pump must be full of oil in order to pump or just residuel oil?

 

[tmoore45acp]

if i take suc. hose off and pour trans fluid into pump i will get about 25 lbs of torgue conv. press as long as i am pouring trans fluid in hose when i stop and quickly reconnect hose press goes back to zero-do i have a bad charge pump?

 

[John Van Valkenburgh]

When I charge my 450, I fill the 2" suction hose to the charge pump (without the engine running). I then quickly hook it to the intake screen and start the machine.

I suspect that you are drawing too much air when you run the engine, pour in oil and then try to connect the hose.

You should also only have to do this once. The machine should not loose oil in the suction hose when the machine is off. If it does, that suggests a leaky charge pump. Fortunately a charge pump is (relatively) inexpensive.

Best of luck,
John
1968 Case 450

 

[george md]

Before you buy a new pump , invest a few dollars
in the shaft seal in the pump , it is a disease
of charge pumps.

george

 

[dieselpaul]

I used to drain fluid & service filters on these units, fire back up & have no trouble with pump picking up. there is a pipe elbow @ suction side of pump on some models that would loosen @ suck air, [o-ring] as others said,shaft seal.

 

[tmoore45acp]

i have tried that and that does not work-

 

[tmoore45acp]

my local case dealer wants $900.00 + for a charge pump-after market pump 280.00 but is aftermarket pump any good?