Diff leaking need helppppp !
02-03-2014, 04:27 AM
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Diff leaking need helppppp !
Hi guys
I was noticed my rear diff is leaking today when i wash the car , after i jacked the car up, its looks like the oil had spilled out from the fill plug bolt which facing toward the rear bumper , i had checked the drain bolt properly and there were no leak at all at the drain bolt which iam very worry about ! So my question now is does it leak because of any overfilled case ?? I just did my diff serviced about last 2000 km and my mechanic seem like he had pumped the full amount of 1 liter of oil into the fill plug until its spilled out instead of 0.7 liters as recommended by Honda !!
So after i took the car to the work shop today,my mechanic was just clean all the oil leak and i saw the leak seems like comes from the fill plug, so he unbolt the fill plug and there were a lot of oil left in the diff as its spilling out when he unbolt the fill plug,then he put everything bolt on back to normal and said its just like because of an overfilled oil into the diff from last serviced !
After that i just drive the car to work and come back home about 300 km and as i can see so far there are no further leak to the diff for now !
So just need some genuine advices about this happened . Is that normal and just becaused of an overfilled or there is something else i need to check out to my diff ?
Helps will appreciated !
I was noticed my rear diff is leaking today when i wash the car , after i jacked the car up, its looks like the oil had spilled out from the fill plug bolt which facing toward the rear bumper , i had checked the drain bolt properly and there were no leak at all at the drain bolt which iam very worry about ! So my question now is does it leak because of any overfilled case ?? I just did my diff serviced about last 2000 km and my mechanic seem like he had pumped the full amount of 1 liter of oil into the fill plug until its spilled out instead of 0.7 liters as recommended by Honda !!
So after i took the car to the work shop today,my mechanic was just clean all the oil leak and i saw the leak seems like comes from the fill plug, so he unbolt the fill plug and there were a lot of oil left in the diff as its spilling out when he unbolt the fill plug,then he put everything bolt on back to normal and said its just like because of an overfilled oil into the diff from last serviced !
After that i just drive the car to work and come back home about 300 km and as i can see so far there are no further leak to the diff for now !
So just need some genuine advices about this happened . Is that normal and just becaused of an overfilled or there is something else i need to check out to my diff ?
Helps will appreciated !
02-03-2014, 06:04 AM
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Nothing to worry about. You really can't overfill it by much anyways. If the car was on an incline, you could get a little extra into the diff but not enough to make a difference. Drive the car, don't worry.
02-06-2014, 07:27 PM
#3
You are good. The main concern is the the drain plug and seal ( which is good). As the previous poster noted the incline is a factor. You fill until oil comes out of the fill hole. If you change the diff oil by raising the rear you will add more oil than raising the car on a lift - car level. Some here use this technique to intentionally "overfill" the transmission. the key to all fluid changes is new seal washers which Is most likely the source of your issue. I "overfill" both tranny and diff using a rear jack.......and new plug seals 
Utah
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