muz123 1,191 #1 Posted February 9, 2020 Soon I am going to be changing the rear end fluid in my 07 315-8 as I'm assuming it has never been done. What is the best way of adding 90wt fluid while preventing air bubbles from blocking the fluid from entering the case and making it difficult to flow in? Thanks! Dave Share this post Link to post Share on other sites
Pullstart 62,783 #2 Posted February 9, 2020 7 minutes ago, muz123 said: Soon I am going to be changing the rear end fluid in my 07 315-8 as I'm assuming it has never been done. What is the best way of adding 90wt fluid while preventing air bubbles from blocking the fluid from entering the case and making it difficult to flow in? Thanks! Dave I assume it has a fill tube / dipstick? Use that as a fill, but keep the full plug open on the left side towards the rear. It’ll flow in well and not burp air. When it runs out, (1.5-2 qts.) put the plug in and you’re good to go. make sure to lift the front of the tractor high as you can to get the old oil over that casted hump 1 1 Share this post Link to post Share on other sites
muz123 1,191 #3 Posted February 9, 2020 Just now, pullstart said: I assume it has a fill tube / dipstick? Use that as a fill, but keep the full plug open on the left side towards the rear. It’ll flow in well and not burp air. When it runs out, (1.5-2 qts.) put the plug in and you’re good to go. make sure to lift the front of the tractor high as you can to get the old oil over that casted hump My 315 does not have a fill tube surprisingly! It just has the dipstick going right into the case. Share this post Link to post Share on other sites
953 nut 55,065 #4 Posted February 9, 2020 (edited) I place a piece of wire along side the funnel to allow air to escape, then add the gear oil VERY SLOWLY! Edited February 9, 2020 by 953 nut 4 1 1 Share this post Link to post Share on other sites
ebinmaine 67,266 #5 Posted February 9, 2020 Drain over night with the front end as high as possible to get the fluid past the center hump of the transmission floor. Fill with diesel. Drive around a few minutes. Drain. I fill through the shifter. Dipstick hole works as well. Replace the boot if needed. 4 Share this post Link to post Share on other sites
peter lena 8,580 #6 Posted February 9, 2020 do you have access to any open road use for your horse ? like a cul de sac ? while the drain and fresh oil is great , if you can heat up that oil to increase the flush factor , that will really help remove the milky crud which is a regular problem with long standing stagnant oil. did mine a couple of times while recovering my horse, drove it miles , every gear / hi / lo range , lots of time in reverse , replace shifter boot. shifting is smooth and easy and i will change fluid if i have been heating up the oil after heavy lawn aireation drag, just to do it . pete 1 Share this post Link to post Share on other sites
Pullstart 62,783 #7 Posted February 9, 2020 Grandpa’s old diesel wood truck is in the shop with a leaky fuel line. I have a bucket under it waiting for it to quit dripping so I can tear into it. This thread is a good reminder of what I should do with the 5-ish gallons of fuel I’ve collected... 3 Share this post Link to post Share on other sites
The Tuul Crib 7,336 #8 Posted February 9, 2020 Eric has good advice fill through the shifter boot!! Share this post Link to post Share on other sites
Tonyp 284 #9 Posted February 16, 2020 OR......Jack up the rear end, secure both sides with blocks , drain the fluid, replace it with Diesel fuel for cleaning , you don't have to fill it, let it run for 10 or 15 minutes, work thru each gear, plus HI/LO drain the Diesel fuel, now fill with 90W to spec , slowly. If you don't have a DIP STICK use a metal ROD before you begin, make your own DIP STICK ! I typically remove both rear wheels and clean the axles at the same time. Seeing its up on blocks ! This is maybe once every 5 years ? Or longer ? Have fun ! Share this post Link to post Share on other sites
Lee1977 6,642 #10 Posted February 17, 2020 On 2/8/2020 at 7:38 PM, pullstart said: I assume it has a fill tube / dipstick? Use that as a fill, but keep the full plug open on the left side towards the rear. It’ll flow in well and not burp air. When it runs out, (1.5-2 qts.) put the plug in and you’re good to go. make sure to lift the front of the tractor high as you can to get the old oil over that casted hump Eight speeds takes two quarts 85W90 .You have to put the side plug back in to get two quarts in the transmission. Take one bolt out of the fender bracket ( that will let the air out ) and fill trough the dip stick hole. Share this post Link to post Share on other sites
