Question about Mercedes-Benz Sprinter

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I have a jcb 527-55 got water in the hydraulics cleaned it out and renewed the oil and filter, but new i dont have any hydraulic pressure the steering is locked and non of the ram move. BUT if i accelerate the ram move slowly and the steering becomes light, ive checked for air in the system and it ok, any hints

Posted by stephenkimbe on

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Bill Boyd

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There is a pressure relief valve in the hydraulic pump
if you have no or very little pressure being generated , it may be that that valve is jammed in the open position or the spring controlling it has broken
in any event the basic problem is that the hydraulic pump is not producing a volume sufficient to build up pressure
check the installation of the filter as it may be restricting oil flow to the pump in installed incorrectly

Posted on Dec 22, 2017

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5 Related Answers

Anonymous

  • 3 Answers

SOURCE: Steering gear fluid capacity and type of manual trasmission fluid?

Hello Dave,
I own a 1988 Ram 50 5-Standard and will go off my own experiences to answer this question.
I use a synthetic 80W transmission fluid.
If you know what is/was already in there; my recommendation is not to change the grade of oil in the transmission unless it is necessary because of driving conditions or vechicle requirements (i.e. towing/hauling/efficiency).
Anyway the Ram 50 Manual 4 & 5 Speed transmissions take a range of fluid grades from 70W-90W. You can use this in both conventional and synthetic oils.

For the power steering, universal power steering fluid works the best, and I honestly don't know the exact amount to put in Ram 50, but may I suggest you purchase ~20oz. Fill it half with half the bottle, then check the dipstick, then put in half of that half-bottle (a quarter of the bottle in), check, and repeat until you get it to the appropriate level.

-Cbeach76

Posted on Oct 15, 2008

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Ronnie Houston

  • 2920 Answers

SOURCE: hydraulic fluid in the struts where nitrogen gas is supposed to b

you are being told the truth about the repair and its costs...i can guarantee that

Posted on Jan 24, 2009

Oliver Street

  • 66 Answers

SOURCE: hydraulic lifters

Yes, but there is still a lot of stuff to move out of the way to get in there and pull them. I would try all the chemical remedies for sticky lash adjusters (oil flush, marvel's mystery oil, etc.) first, then check the timing belt to see if a worn timing belt has let it slip a tooth and the valve timing is off for that reason before digging into the lifters. There used to be a forum that had video and audio from a subaru legacy this model before and after swapping out a bad lifter. Google for it and see if the noise matches.

Posted on Mar 21, 2009

mecanica03

ROBERT GARCIA

  • 918 Answers

SOURCE: where to buy hydraulic fluid

if dont find hydraulic fluid,you can also uses automatic transm. fluid (DIII),this not cause any problem

Posted on Apr 13, 2009

chuck943

Chuck Martin

  • 783 Answers

SOURCE: hydraulic clutch

Yes it does. It is supplied by a chamber in the brake master cylinder reservoir itself.
Here is a pic of it.
http://i253.photobucket.com/albums/hh43/chuck943/M1601026.jpg

Posted on Apr 13, 2009

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3 Answers

After sitting over night, start it and it makes clattering noise top front of motor for about 30 seconds and stops. runs great, already changed water pump, belt etc. new power steering pump also.


change the oil filter to a better quality wit an anti-drain back valve , change oil and up grade to 30w-50 oil viscosity
remove and check the leak back rate for the hydraulic followers
the problem is that the oil drains back from the valve train resulting in a noise until oil pressure is restored

Oct 11, 2018 | Cars & Trucks

Tip

How to fix AUDI steering oil owerflows from reservoir


Check up the hydraulic power steering pump.
See picture below for 1.6, 1.8 liters Audi (4 cyl.) engines:

If you find leaks and noise when runing, the hydraulic vane type pump is damaged. The pump inputs air inside and mix air with oil resulting foam. Therefore fluid volume inside steering instalation rises. Then pressure overflows oil from the reservoir. You need repair or replace hydraulic vane type steering pump.

on Dec 30, 2009 | Audi A4 Cars & Trucks

1 Answer

Oil pressure indicator light comes on


Hey Joe,
Are you sure it's the hydraulic oil low pressure or is it the engine oil low pressure light? Check the engine oil for being low, over full, filter change, right type of oil, leaks, air filter, spark plug, clean air intake, battery getting a good charge, if that stuff is ok, then find your oil pressure switch and change that out.
But it if it is the hydraulic oil light, check for leaks, that is a high pressure system so don't put your hand by hydraulic leaks use cardboard or something to check for leaks, a pin hole leak can cause severe damage to your skin from a high pressure injection from fluid.
Let me know if this helps and we can go from here

Apr 04, 2018 | Cars & Trucks

1 Answer

Haudraulick problems on John Deere 3350


Try disconnecting a hose from the steer cylinder. Place the hose end in a 5 gal. bucket and see if you have flow from steer motor. turn steering wheel to the opposite direction of open hose fitting to check for steer cylinder piston leakage. Piston leakage will pressurize both directions of steer cylinder at the same time resulting in no steer. Be careful not to overflow your bucket. Reuse your oil if bucket is clean

May 21, 2017 | John Deere Garden

1 Answer

Boom on my JCB 531-70 telehandler will only extend 2 inches what is the possible cause


Hi Andrew:
I'd start by checking the hydraulic fluid level, then the filters for metal particles.. It may be that a piece of metal is holding a valve open.
Probably a good time to have the assistance of a qualified hydraulics mechanic.

May 10, 2016 | Cars & Trucks

1 Answer

Having some sort of a fan issue going on...


my guess is you dont know the radiator fan rules.
its different on each of 3 engines
I have the 3.7L in same car, same year, but is WK yours is XK
the larger passenger compartment with bigger engine.
i have the FSM (SM) factory service manual.
so will post the words out of it , its free to read, posted 300+ time here. and no more posts, im going dark....lol
chapter 7 covers both engine.
5.7:
the 5.7 uses hydraulic fan (not electric motors but uses hydraluic motors, off ps pump)
so is the PS, assist ok and no noises from it.?
first the quotes in cht.7
5.7L ENGINE The 5.7L hydraulic cooling fan is integral
to the fan shroud and is located between the radiator
and the engine.
The power steering pump supplies the hydraulic fluid
and pressure to rotate the cooling fan blade, while the
electrical part of the fan is controlled by the FCM.
The hydraulic fan drive (motor) consists of the three
major following components:
² Steering flow control valve
² Fan control valve
² Two stage G-rotor hydraulic drive
The hydraulic fan and drive is not serviceable. Therefore
any failure of the fan blade, hydraulic fan drive or
fan shroud requires replacement of the fan module
because the fan blade and hydraulic fan drive are
matched and balanced as a system and servicing
either separately would disrupt this balance.
end quote now the rules
HYDRAULIC FAN STRATEGY
The hydraulic radiator cooling fan is controlled by the FCM. A PWM (Pulse With Modulated) signal from the JTEC
controls the fan speed. There are four inputs to the FCM that determine what speed percentage of fan is required
by the vehicle. These inputs are:
² Engine Coolant Temperature
² Transmission Oil Temperature
² A/C System Pressure
By monitoring these three parameters, the FCM can determine if cooling airflow is required. If airflow is required, the
FCM will slowly ramp up (speed up) the fan speed until the parameter(s) are under control. Once the temperature
HYDRAULIC FAN FLUID FLOW CIRCUIT
1 - POWER STEERING RESERVOIR
2 - POWER STEERING PUMP
3 - HYDRAULIC FAN DRIVE ASSEMBLY
4 - FAN BLADE
5 - HYDRAULIC FAN CONTROL SOLENOID
6 - POWER STEERING OIL COOLER
7 - STEERING GEAR
WK ENGINE 7 - 35
or pressure is reduced to within operating parameters the fan will ramp up, ramp down, or hold its speed to maintain
the temperature / pressure requirements.
NOTE: Even if the FCM is not requesting fan on operation the fan blade will usually spin between 100 and
500 RPM when the vehicle is at idle. This is due to a controlled minimum oil flow requirement through the
fan drive motor.

so is it still broke, or just a learning curve
its not simple at all.
in fact all 2005 up GC are complex fan controls
every one,
using tables to decide need, and speed.
on all modern jeeps.

Apr 10, 2016 | 2010 Jeep Commander 5.7

1 Answer

Hear a tapping sound after start up. saw a electronic throttle light come on and go back out. after driving a bit it stops but when start up it does it again


could be a problem hydraulic cam follower that is bleeding down too fast and dropping off oil pressure
If the mileage is up on the engine a bleed down test of all hydraulic followers would be in order
If you have had a oil change recently, check the quality of the oil filter used as el-cheapo filters do not have a check valve incorporated and when the engine is shut down all of the oil that is normally held in the oil passages is allowed to drain back to the sump
In the normal process the bearings get oil first and the rocker gear last so the tapping could be a delay to build up oil pressure that operates the hydraulic followers

Feb 22, 2016 | 2006 Chrysler 300

1 Answer

What causes a mini excavator (Yanmar B27) on rubber tracks to shudder and shake ( bunny hops) when first moving forward or reverse? Would worn track rollers produce this effect? Thx


probably not--This sounds like uneven pressure from the hydraulic pump or problems with the drive motors. Check that the hydraulic oil filter is in good condition (not blocked) and have the pressure in the hydraulics checked.. Have the hydraulic controls checked for correct operation. (if electric controls check for voltage problems to the solenoids and if manual check for control valve problems)

Oct 05, 2014 | Cars & Trucks

1 Answer

2000 crv honda just got a new timing belt and water pump after a couple of days now it make a noise (loud clicking noise) when I start it up


The noise you describe may be due to hydraulic tappet leak back form a oil that is of the incorrect viscosity or a cheap oil filter that doe's not have an anti leak back valve in it .The noise is until the oil pressure builds up and makes the hydraulic tappets work properly.

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1 Answer

Hydraulic oil running out


hydraulic oil for? a JCB a dozer? ?

Apr 14, 2013 | Cars & Trucks

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