Hello,
I have learned a lot from these forums and wish to finally contribute my repair to anyone who has had a leak from the two o-rings that seal the fittings between the metal power steering pump and the plastic reservoir that attaches to the pump.
I discovered a leak in the power steering system and found that the plastic reservoir that mounts to the power steering pump was leaking. I found that I could take the two bolts out that hold plastic reservoir to the power steering pump and pull the reservoir far enough away from the pump to replace the two o-rings that seal the reservoir to the pump. After cleaning the plastic nipples on the reservoir for the o-rings and metal pump housing, I installed two new o-rings and re-installed the reservoir to the pump. It is no longer leaking after 7 months.
The only parts I needed to buy were two o-rings. The large o-ring is part # MS28775-018. The small o-ring is part # MS28775-016. I found these o-rings at my local airport that has a maintenance shop. These are Buna-N o-rings. I was not able to find the Viton o-rings in a hurry while my truck was apart. I would have preferred the Viton as it is supposed to hold up to more extreme temperatures. The part numbers listed are Mil-Spec part numbers and each o-ring costs about 25 cents.
I did not have to remove the pump or even have to disconnect the return line from the reservoir to the steering box. I spent most of my time locating the two o-rings.
I hope the parts numbers are helpful to anyone who may need them.
I did this repair about 7 months ago and forgot to take photos of the pump taken apart.
Frankbee3
I have learned a lot from these forums and wish to finally contribute my repair to anyone who has had a leak from the two o-rings that seal the fittings between the metal power steering pump and the plastic reservoir that attaches to the pump.
I discovered a leak in the power steering system and found that the plastic reservoir that mounts to the power steering pump was leaking. I found that I could take the two bolts out that hold plastic reservoir to the power steering pump and pull the reservoir far enough away from the pump to replace the two o-rings that seal the reservoir to the pump. After cleaning the plastic nipples on the reservoir for the o-rings and metal pump housing, I installed two new o-rings and re-installed the reservoir to the pump. It is no longer leaking after 7 months.
The only parts I needed to buy were two o-rings. The large o-ring is part # MS28775-018. The small o-ring is part # MS28775-016. I found these o-rings at my local airport that has a maintenance shop. These are Buna-N o-rings. I was not able to find the Viton o-rings in a hurry while my truck was apart. I would have preferred the Viton as it is supposed to hold up to more extreme temperatures. The part numbers listed are Mil-Spec part numbers and each o-ring costs about 25 cents.
I did not have to remove the pump or even have to disconnect the return line from the reservoir to the steering box. I spent most of my time locating the two o-rings.
I hope the parts numbers are helpful to anyone who may need them.
I did this repair about 7 months ago and forgot to take photos of the pump taken apart.
Frankbee3