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How To: Diff Oil change

How to Change Differential Oil

Knowing how to change the differential oil is important when servicing your car or making adjustments to the differential setup. Changing the oil is an easy and simple thing to do when you’ve got your car on a desk.

Needed tools:

  • Proper tools for the screws
  • Pliers
  • Paper towels to protect the desk
  • Differential oil

Start the process by covering the desk with for example kitchen paper that will absorb the oil.

Next, remove the differential from your car. In newer cars you only need to open the housing cover and remove the differential. Use a paper towel, and if needed, soap, to clean the differential.

Next, remove the cover. At this point, it’s good to get rid of the old oil/grease.

Next, remove the small internal gears to make it easier to clean the differential case properly and to check the condition of the gears. If the differential has leaked, it may be a good idea to replace the O-rings of the outdrives with new ones.

Tip! Use thin-ended pliers to get a good grip on the gears. However be careful not to scratch the axles of the small gears. The easiest way to remove the pins of the outdrives is by using pliers.

After a thorough cleaning, check the condition of the cover seal and seat it back on properly. Add the oil in two stages.

  • Start by placing the gear at the bottom of the differential. Next, add oil so that the edges of gear are covered (not all the way up!).
  • Next, place the small gears on top of the gear. Place the gears on the cross axle and place the entire thing inside the differential. If the differential has four gears (axles are crossed) make sure that the flat parts of the axles are matched properly. This way, the oil already in the diff will get into all the nooks and you don’t have to wait so long for the air to get out of the diff.
  • Finally, add some more oil until the cross pins are covered.

Note! When adding oil, make sure to leave enough space for the gear on the cover to fit in. If the differential is filled up too tight, it will likely start leaking. On the other hand, if there isn’t enough oil, the oil will foam during long runs and the oil won’t lubricate the gears the way it should.

Note! Let the oil sit in the differential for a while before putting the cover back on. The thicker the oil, the longer it takes for it to settle between the gears and for the air to get out.

If your car has a so called planetary gear differential (for example Traxxas 2WD, Losi 22–4), the gears are placed each on their own axle in the diff housing. After this, add the oil and make sure that there’s enough space for the cover gear.

Finally, put the cover back on. At this stage, make sure that the cover seal is seated correctly with the screws. Start by tightening the screws lightly and then adjust tightness carefully by cross-tightening the screws.

After tightening, make sure the differential spins smoothly and is not leaking oil. Finally, install the differential in opposite order to when removing it.

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Basic tracked shipping starts from 6,90€ (GLS road freight) in European Union countries.

Estimate Shipping times with GLS.

An international GLS parcel is delivered to neighbouring states of Finland like Sweden or the Baltic countries in a standard delivery time of 24 to 72 hours. To more distant European countries the international parcel dispatch takes between three and six working days, to remote areas up to eight days. Rough estimate is 1 week from order to delivery.

Please note that GLS shipping time is calculated in working days (Monday to Friday) and excluding the day when parcel is shipped.
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DHL Express and UPS Express are our fastest delivery options. Both options can reach almost anyplace in EU in 1 day, but some places take 2 days.
• Depending what kind of products you want to order the shop will let you choose from available shipping options.
• Both Options are also Door To Door Services. The Courier will deliver the parcel to your door. But they also have pickup points where they might drop your package off so you can pick it up when it suits you.

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We accept returns of new, unused merchandise within 14 days from the delivery. Please contact us at [email protected] to receive return information. The customer is responsible for any return costs unless otherwise agreed to with our customer service. We try to return the money with the same payment method that was used to pay for the order, if its not possible we make a wiretransfer. You can also request a gift card if you are making a new order to speed up the process.

We also accept returns after 14 days upto 50days, but we refund them with a giftcard to our shop so you can replace them with any products we sell. Please contact our customer service for details.

After we receive the merchandise and verify its re-sellable condition, we will refund the money or give you a giftcard. Depending on the item this will take 1-3 days after we have received the item. If there is a delay we will contact you.

Please note that all parcels that are returned to us because customer has not picked it up / accepted it or paid customs fees of it will processed. Handling and shipping costs will be reduced from the refunds.

Note! Every return made without notice via email will be charged with handling fee of 20€. Handling fee will be reduced from the total refund.

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In the rare occurrence that the shipment has been damaged, please take pictures and send those to our customer service [email protected] immediately and we will make sure we get you sorted and back to enjoying our hobby. Also notify the courier bringing you the shipment that it has been damaged.

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If you feel that your product is defective please send us a email and we will let you know what to do next. Most items do not have a warranty as they will break in normal usage. For example if you hit something solid or take a larger tumble. Properly used items should easily last 3-12 months and during this period we are able to replace broken items if they have a manufacturing or material fault. We have years of experience with different makes and they all have different warranty policies. We have chosen to work with brands that have a good understanding how to serve their customers and you can be assured that you will get the best customer experience possible with us.

We do not replace or exchange products that are not defective or broken by improper use or have not been maintained. But we do help and teach you how to do things properly so you do not break anything in the future, just email us and we will help you out. We are however unable to wrench for you, its part of the hobby so its important that you will learn that part also your self, we have great tools to sell you so just ask us what you need.
Note! Many manufacturers are strickt that electronics are not allowed  to be modified (connectors changed etc.) without disabling the warranty. Remember to check this from your products manual.

Don’t worry you are safe with us! Most of our customers feel that they get excellent service in the rare occurrence that they encounter a problem with the product they have bought.

And remember if you run in to a problem or you feel that there is a problem with arrived products do not hesitate to contact us. We are here to help and we do our best to sort it out as soon as possible.

What happens if EuroRC made a error in the shipment?

We ship a lot of orders each day and rarely there are errors. We do however try to minimize the effect on the customer. Please contact us immediately if we have made an error and we will make it right.

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Always contact us before returning any product, we can not take responsibility for shipments that are sent without prior notice. Its very important that we can tell you how to mark the parcel so it will be processed in a timely fashion.

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Päiviöntie 8
12400 Tervakoski
Finland

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