How much horsepower does a hydraulic pump need

M

Muir hill 101

Member

• Apr 7, 2023

• #1

Starting down my diagnostic checks today . Needed to
get the hydraulic oil up to temperature so i hooked my
trusty jumper hose up and cycled the scv .

 

OP

OP

M

Muir hill 101

Member

• Apr 7, 2023

• #2

Of course this is at 2500 rpm as hard as shell run . So with the transmission warmed up I ran the tests according to the service manual I havent gone so far as unhooking the shift lever yet but no drag at all in the first two tests and the transmission shifts nice and snappy so I dont think the problem is in the transmission.

 

B

buickanddeere

Well-known Member

• Apr 8, 2023

• #3

15gpm at 2250 psi will use 20+ HP .

 

OP

OP

M

Muir hill 101

Member

• Apr 8, 2023

• #4

If you dont mind how can a feller find info like that ?

 

OP

OP

M

Muir hill 101

Member

• Apr 8, 2023

• #5

Thanks also

 

J

John730D

Well-known Member

• Apr 8, 2023

• #6

Right here
calculator

 

M

matthies

Well-known Member

• Apr 8, 2023

• #7

Looks like your timing is off by the first picture.

 

OP

OP

M

Muir hill 101

Member

• Apr 8, 2023

• #8

Fuel delivery is set high .

 

T

Tech 7

Well-known Member

• Apr 8, 2023

• #9

One formula I remember from school makes it 23.65. (Input HP = GPM x Pressure x 0.0007)

 

OP

OP

M

Muir hill 101

Member

• Apr 9, 2023

• #10

Is there anything surplus center cant do?? Ive been getting there catalogs for years always enjoy them .

 

OP

OP

M

Muir hill 101

Member

• Apr 9, 2023

• #11

I need to look through my books see if they give any calculations for that .

 

Tx Jim

Well-known Member

Location

Coyote Flats, Texas

• Apr 9, 2023

• #12

(quoted from post at 18:37:40 04/08/23) Fuel delivery is set high .

Click to expand...

My guess viewing the height of the flame is fuel delivery is set "too high"!!

 

wore out

Well-known Member

• Apr 9, 2023

• #13

(quoted from post at 05:26:32 04/09/23)

(quoted from post at 18:37:40 04/08/23) Fuel delivery is set high .

Click to expand...

My guess viewing the height of the flame is fuel delivery is set "too high"!!

Click to expand...

If just operating the hydraulic pump and ''overfueled'' it would ''OVERSPEED''. Pulling it's guts out on the dyno would be another matter.

Dunno what he's got going on, injection pump timing, ''bad'' injectors, or perhaps a clogged air intake, but that jet of flame is just NUTS for a lightly loaded engine!

What do you think, Jim?

 

Tx Jim

Well-known Member

Location

Coyote Flats, Texas

• Apr 9, 2023

• #14

Appears to be a waste of high $$$$ fuel plus possibility of shortening the life of the engine pistons/liners!!

 

OP

OP

M

Muir hill 101

Member

• Apr 10, 2023

• #15

Been that way for 6 years and its not been babied I
havent done anything with the pump it came to me the
way it Is . I dont have one tractor that doesnt throw
an orange cone when worked hard

 

OP

OP

M

Muir hill 101

Member

• Apr 10, 2023

• #16

Using the hydraulics works this tractor hard really hard
Always has

 

OP

OP

M

Muir hill 101

Member

• Apr 10, 2023

• #17

There is some small print I didnt notice at first when I went to the calculator provided by surplus center it says horsepower is for electric motors for gas engines double the horsepower.

 

rustred

Well-known Member

• Apr 10, 2023

• #18

wow i thought SV Cummins was back!

 

OP

OP

M

Muir hill 101

Member

• Apr 10, 2023

• #19

Hes not the only one who can shoot flames!