What causes a differential leak?
There is a number of causes for differential leaks which you need to have repaired as soon as possible before you damage the gears inside your differential housing. The cause for a leak could be a leaking gasket, a leaking pinion seal or a differential side seal.
What to do if you have an oil leak in the rear differential?
If there is sizeable movement, then the bearing will have worn and movement of the flange will be damaging the seal. A new bearing and seal are required, which is covered well in this article at Reedx. Slightly less quick but more easily rectified is checking the axle breather.
How does the rear differential pinion seal work?
For the rear differential pinion seal, which seals the input flange (connecting to the rear propshaft) from the diff internals, there is a possibility that the bearing is on its way out. This is easily checked by shaking the propshaft in all directions.
What causes a puddle under the rear differential?
The first thought on seeing a puddle under the vehicle from the rear differential is a faulty or worn seal. This might be the effect but not might not necessarily be the cause of the problem. There are several quick checks you can do to see what the problem might be.
What causes an oil leak in a Land Rover?
There comes a time in a Land Rover’s life where it starts to drop oil. My 1993 200tdi will have dropped litres of fluid in its lifetime, so this latest spill is nothing new. The first thought on seeing a puddle under the vehicle from the rear differential is a faulty or worn seal.
How do you fix a rear differential leak?
Fixing the rear differential oil leak – resealing with RTV silicone Loosen bolts Prize open case Drain oil Scrape off old gasket sealant with a plastic scraper Clean cover plate Apply sealant (gasket maker or RTV silicone) Place cover back on and hand tighten Fully tighten and leave for 24 hours before filling with oil
What would cause a rear differential to leak?
In most case, age, wear and tear, or excess exposure to harsh weather and elements causes the differential gasket to break or leak. However, in some very rare cases, excessive pressure inside the rear end housing can also lead to pushing the gasket out which can also create a leak.
How much does it cost to repair rear differential seal?
On average, differential repair can range anywhere from $500 to as much as $2,000. The costs will depend on the mechanic, the location (rear and/or front), the significance of the repair, parts being used if the entire differential has to be replaced, where you live and your car’s make and model.
How do you fix a rear seal leak?
The best way to fix a leaking rear main seal is to recondition the seal that’s currently in your vehicle. Adding BlueDevil Rear Main Sealer to your engine oil will allow your rear main seal to be reconditioned as you drive your vehicle in 2 days or less.