Is it necessary to replace a leaking pinion seal?
Replacing a leaking pinion is very important in preventing any major repairs. The pinion seal leaking is a good indicator that something needs attention. If replacing your pinion seal is something you would rather leave to a professional, have one of YourMechanic’s certified technicians perform the replacement.
How do you remove pinion seal on Nissan Frontier?
11) Remove the pinion seal with a seal removal tool or screw driver. Which ever you prefer, but be careful not to mar the mating surface of the housing or snag the bearings behind the seal. 12) Clean the mating surface for the seal on the Diff housing and the pinion splines on both pinion shaft and flange.
What does a pinion seal do on a differential?
A pinion seal keeps oil in the differential and keeps water, dirt, and debris out. A failing pinion seal will leak which can ruin the differential. Average rating from 31 customers who received a Pinion Seal Replacement. The pinion seal, also called a pinion shaft, is designed to keep oil in and any water, dirt or debris out.
What to use to clean diff pinion seal?
Which ever you prefer, but be careful not to mar the mating surface of the housing or snag the bearings behind the seal. 12) Clean the mating surface for the seal on the Diff housing and the pinion splines on both pinion shaft and flange. I used some carb cleaner on a lint free cloth.
What’s the best way to replace a pinion seal?
Step 1: Apply RTV silicone. Apply a thin layer of RTV silicone on the mating surface of the new seal. The mating surface will in most cases have an orange or green sealing surface. Step 2: Install the new pinion seal. Position the seal according to how it needs to be installed against the axle housing.
11) Remove the pinion seal with a seal removal tool or screw driver. Which ever you prefer, but be careful not to mar the mating surface of the housing or snag the bearings behind the seal. 12) Clean the mating surface for the seal on the Diff housing and the pinion splines on both pinion shaft and flange.
How does the pinion shaft affect the oil seal?
With the pinion shaft being surrounded by the seal, small lips on the seal face the inside of the differential, so any oil that makes it past the oil slinger (a small disc in front of the seal) will only slide up the oil seal, not under it. This causes the oil to return to the differential case instead of flowing between the seal and pinion shaft.
How can I tell if my pinion seal is leaking?
The only symptom of a leaking pinion seal is fluid contamination on the exterior of the differential housing, driveshaft, and in a straight line across the bottom of the vehicle where the seal is located.