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Thursday, June 28, 2012

2000 Dodge Ram 3500 Cummins Diesel: Oil Leak issues?

The oil leak is noticed between Vacuum Pump and Power steering Pump.

Yes many others too have noticed this.

First understand the theory.


There is an insert/sleeve of sorts right behind the seal that is in the rear of the vacuum pump.

The insert/sleeve should be pulled out along with the seal out the rear of the vacuum pump and then the new seal installed and then the insert/sleeve should be re-installed.


There is a seal kit for the vacuum pump. You have to remove the vacuum and poower steering pumps and replace the seals.The kit is available at auto parts store. It costs $104, there are instructions in the kit.To follow the procedure.

Some users only replace the faulty seal,instead of replacing all seals.
As per there say,why to replace all seals when only one or two are worn out and faulty.At local parts store one seal costs approx $7 and complete kit comes for $104.

But i suggest replacing all seals.Because first getting faulty is indication,that others are also nearing towards end.But still if you get confirmed that other seals are still good,then replacing only the faulty seal is not a bad idea.


You will still need the gasket between the vacuum pump and the timing cover, and I beleive another seal for when you disassemble the vacuum pump, plus the shaft seal. That is why everything comes in a kit.

To remove the pump follow the instructions mentioned below:---------
Here are the instructions on removing the pump. After  the pump is out remove the boltls that hold the pump together, seperate the pump halves. Drive the seal out by using a socket and hammer, drive the seal out with the pump drive rotor. Clean it all up, put the pump drive back in, drive the new seal in, and reassemble.


REMOVAL

Disconnect battery negative cables.
Position drain pan under power steering pump.
Disconnect vacuum and steering pump hoses.
Disconnect lubricating oil feed line from fitting at underside of vacuum pump
Remove lower bolt that attaches pump assembly to engine block
Remove bottom, inboard nut that attaches adapter to steering pump. This nut secures a small bracket to engine block. Nut and bracket must be removed before pump assembly can be removed from block.
Remove upper bolt that attaches pump assembly to engine block
Remove pump assembly from vehicle.

NOTE: The vacuum pump and adapter are serviced as an assembly and must not be seperated.
Remove the remaining three power steering pump to adapter mounting nuts
Gently, remove the steering pump from the adapter. Use caution not to damage the oil seal in the adapter body .
NOTE: Make sure the two pump spacers are present before assembling power steering pump to adapter.
Aline the steering pump drive dog with the slot in the vacuum pump drive assembly, slide the steering pump into place on the adapter.Use care not to damage the oil seal in the adapter body.
Install the three steering pump to adapter nuts, do not install the lower inboard mounting nut at this time. Tighten nuts to 24 N·m (18 ft. lbs.).
Position new gasket on vacuum pump mounting flange Use Mopar® Perfect Seal, or silicone adhesive/sealer to hold gasket in place.
Insert pump assembly upper attaching bolt in mounting flange and gasket. Use sealer or grease to hold bolt in place if necessary.
Position pump assembly on engine and install upper bolt Tighten upper bolt only enough to hold assembly in place at this time.
Working from under vehicle, install pump assembly lower attaching bolt. Then tighten upper and lower bolt to 77 N·m (57 ft. lbs.).
Position bracket on steering pump inboard stud. Then install remaining adapter attaching nut on stud. Tighten nut to 24 N·m (18 ft. lbs.).
Connect oil feed line to vacuum pump connector and tighten line fitting.
Connect steering pump pressure and return lines to pump. Tighten pressure line fitting to 30 N·m (22 ft. lbs.).
Connect vacuum hose to vacuum pump.
Connect battery cables, if removed.
Fill power steering pump reservoir and Purge air from steering pump lines

See the help diagram shown below:-----
dodge steering Pump mounting flange

Both the parts are numbered and shown in the diagram
1 - PUMP MOUNTING FLANGE
2 - PUMP GASKET (APPLY SEALER TO BOTH SIDES)


Also see more help diagram
dodge steering pump mouniting



1 - PUMP ASSEMBLY LOWER MOUNTING BOLT
2 - ADAPTER BRACKET
3 - BOTTOM-INBOARD ADAPTER BRACKET NUT

Also view the power steering shaft and oil seal parts diagram and location

dodge oil seal


The parts shown in-the diagram are as follows:---

1 - PUMP SHAFT
2 - VACUUM FITTING
3 - VACUUM PUMP DRIVE
4 - OIL SEAL
5 - MOUNTING BRACKET
6 - DRIVE DOG
7 - PUMP SPACERS

This details will help.
Thanks.


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