Photo #2 shows the view from the inside of the yoke, looking down the splines. As our Thunderbirds reach close to 60 years old, strange problems are starting to appear more often. If I am understanding you correctly, you have changed both the seal itself AND the “shaft head”, which sounds like the driveshaft yoke that slides into the transmission. Re: leaking gearbox, from drive shaft Ah I thought that might be the case which is why I posted the pics. I poured some 90W gear oil into the shaft area to replace the oil that had leaked from the gearcase and then tapped in the new seal over the shaft. I drained the transmission and measured 20 ounces oil which is a little less than what the drivers manual lists as it capacity. Transmission slipping at highway speeds. Gil BaumgartnerCTCI Authenticity Chairman. Often gearboxes leak from the seal where the drive shafts enter the gear box. The seal is designed to stop leaks of a little bit of oil that may have worked it's way into the tail shaft but most of the oil that finds it's way back there is supposed to drain back into the pan. Replacing these seals does not require removing the transmission so check with your mechanic to see if that makes sense for you. Grease has lower flow characteristics than oil and will not leak as fast. 1995 passport troubleshoot slow leak in manual transmission There is a seal on the input and output shaft and a seal on the top cover. Page 1 of 2 - Leaking Oil From Drive Shaft - posted in Problems, Questions and Technical: hi guys i have been fitting a new exhaust today and i have noticed its leaking oil from the drive shafts quite bad . You have the JC5 gearbox (M5P) built by Renault and these are not very good ones. ]Hi all, I recently had both drive shafts replaced due to the inner velocity joint going on the outer one, I also had new gear box seal fitted on the drivers side. On the DRZ, a countershaft (drive shaft) spacer installed backwards so the slots on the end of the spacer are aginst the sprocket will starve the drive shaft of oil. 2,094 117. Usually, if you have a leak at the rear of your vehicle and it’s rear-wheel drive or all-wheel drive, it means your differential is leaking. If you leak any oil at all it's usually from the transfer case or gearbox, so don't worry about the engine oil and usually what oil you lose is not more than just a … Does that mean I need a new rear end or is there a gasket that goes in there or what? The small hole was repaired with JB weld available from most auto parts and hardware stores. Report. Post Jul 25, 2014 #1 2014-07-25T13:29. Unfortunately the gear box holds only a small quantity of oil. What would you suggest?". Photo # 3 shows the repair after the JB weld was applied and hardened. There are two main types of oil seal : static and dynamic. Just remove the shifter knob,trim, and boot. The rear differential of my 2011 Ford Escape was leaking before and after I changed the gear oil, replaced the gasket, and reopened the vent. The slots are there for oil feed. While grease will lubricate the gears effectively, more heat will be generated within the gearbox. If there is a leak from the oil seals at the inner ends of front-wheel-drive shafts, the shafts must be removed and the seals renewed - a task best left to a garage. Other types of products that can be used are touted as seal enhancers. As with introducing any aftermarket product to your oil, this should only be done after careful consideration and testing to ensure there will be no ill effects on the oil or machine. Keep in mind that after adding anything to a component other than the appropriate lubricant, it should be removed and the interior surfaces flushed to eliminate all risks of cross-compatibility. It currently uses an ISO 680 EP oil, but we would prefer to use a lubricant that would stem some of the leakage and allow the gearbox to continue running until the next scheduled turnaround. Also the best way to fill the tranny is through the shifter opening. No, the DRZ gears do not run submerged in oil. One of the most common reasons seals leak is not the seal at all. If the rubber transfer case seals dry out or crack they can leak gear oil or transmission fluid. Report. I have the original enclosed drive shaft and I am wondering if the leak may be from the rear end housing working its way up from there. One of the more common signs the axle seal is leaking is oil below your vehicle after it has been parked. Drive shaft oil leak. The JB weld will flow out smoothly and harden providing an oil resistant seal. hbspt.cta.load(3951034, 'c99217f3-09e7-4751-bc3a-7739dac44a0e', {}); The How and Why of Lubricant Selection and Consolidation for Rotating Machinery, Guidelines for Determining the Cause of Gear Failures, Unboxing: Luneta Column Sight Glass in Tritan™, Unboxing: Mystik® JT-9™ LeakShield® AW Hydraulic Oil, Product Unboxing: Hy-Pro Compact Offline Filter, The Cost Effective Benefits of a High Performance Kidney Loop System, 8 Steps to Successfully Implement a Preventive Maintenance Program. "Our gearbox, which leaks excessively, is close to the end of its life. 363 Posts #2 • Jun 11, 2016. 2,094 117. richc69. Recently I encountered a situation where fluid was leaking from the rear of the transmission. There should not be a … tailshaft flange seal leak I am guessing. With grease, internal pressure will remain under control. Grease has lower flow characteristics than oil and will not leak as fast. If you start to notice oil drops on your driveway, it could be a sign of a leaking axle seal. Troubleshooting found the fluid leak coming from the center of the drive shaft yoke (p/n 4841), from an area I’ve never experienced a leak, until now. Apparently the oil gets past the drive shaft seal and collects behind the gimbal bearing and then drains into the bellows. Unfortunately, the plug was never a serviceable part and is not available separately. Very few drops of liquid coming out from the center of the car. An input shaft leak will in time foul the clutch disk. This also doesn’t take into consideration the cost of the oil that is leaking. Went to move it today to find a patch of clean oil on the drive. A few days later the leak reappeared and the owner brought the car to my shop to diagnose the situation. If it only happened after changing the oil I would suspect something to do with excessive oil level or the type of oil. Our inspection discovered the plug that seals the end of the yoke had a small rust hole from the inside out. The drive shaft oil seals are in expensive and come with an o ring for the end of the drive coupling, however check for play in the diff bearing as this can cause the seals to leak (up and down movement of the inner drive shaft … I would think yours is the earlier design that … "It's your gearbox that is leaking. I inspected the shift shaft bushing seal. When it comes to leakage, the only real solution is to take down the machine and repair it in order to stop the leak. The splash feeds oil drain back holes that feed the shafts. This repair should last many years due to the fact that very little oil reaches the cavity past the spines. I can see oil is leaking from the part where the drive shaft connects to the rear end. Filling the gearbox with grease is another simple solution that has been used successfully. 2001 Audi A4 Quattro 62,000 mi, Visitor. This video details how to remove a leaking oil seal from a vehicle.A new seal is then carefully installed. Rear tranny to drive shaft output seal leaking gear oil. How to Flush Gearboxes and Bearing Housings. The rubber boot is held on with 4 10mm or 12mm bolts remove it also. Filling the gearbox with grease is another simple solution that has been used successfully. A $20 fix to … A slow leak will have road dirt collecting on the leaking area. I put 1oz of Oil Stop Leak in and after driving about 120 miles, I noticed the leak was gone. This can be accomplished by removing the yoke from the drive shaft, cleaning the area thoroughly; mixing the two-part JB weld and completely covering the plug area face up. 3. The boat has been stored for around 2 months and I didn't notice any puddles when I picked it up or used it last. Your driveway is one of the spaces you will notice the oil leak. While grease will lubricate the gears effectively, more heat will be generated within the gearbox. Check if the filler and drain plug is tightened, aswell as the reverse and 4wd(light indicator) switches on the gearbox is not leaking through the section where the wiring enters the switch, check the tail end of the g/box rhere the the drive/prop. These fluids and pastes are manufactured with synthetic bases and will cause seal material to swell. As the seal swells, it slows the leakage. This can be accomplished by removing the yoke from the drive shaft, cleaning the area thoroughly; mixing the two-part JB weld and completely covering the plug area face up. As the fluid traveled down the output shaft and yoke splines it leaked through the holes in this plug. So if you see oil from a leak and it has a distinctive odor, it could be a differential fluid leak. Found the oil seal kit here and ordered it, hoping that I wouldn't have to wait too long. All of these solutions are not true fixes but simple patches that can help until the gearbox can be taken out of service and properly repaired. Since grease does not dissipate heat as well as oil, the temperature should be monitored. R/R seal. Hi The gearbox an differential oil is separate from the engine. The JB weld will flow out smoothly and harden providing an oil resistant seal. As oil continues to flow from the gearbox, there are obvious safety concerns involved with exposing people and the environment to the gear oil. If it is cracked or leaking get a new one as it keeps dirt out and gear oil in. It … It’s actually a problem with the gearbox bearings. A front-wheel-drive car has oil seals on the drive shafts at the front wheels. But it’s all good now. All seals should also be replaced to reduce future leakage. It is possible your friends boat may have a bellows that is full of drive oil. Differential oil usually has a distinctive smell. Provided that the component can be taken down and repaired in the near future, there are some options to “Band-Aid” the problem. This leakage is the result of these shafts flexing under load as the tiller shafts operate. Re: Alpha One oil leak, loose shift shaft Okay, so today I drained the drive, ( had a small amout of water intrusion ) and pulled the lower unit off. A fluid leak can put the transfer case at risk of suffering internal damage due to low lubrication. There is an oil feed hole under the spacer. The fir, Transmission Fluid Leak at the Drive Shaft Yoke, Convention/Concours Procedures, Guidelines & Rules, 1955/56/57 Thunderbird Engine Oil Pumps and Flickering Oil Pressure Lamp, Update on original type reproduced Power Punch Batteries. It's not leaking from the back of the differential but right where the u joint part seems to connect to the rear end. It's audi A4 3.0 convertible . Does it sound credible? The most absolute most common symptom of a problem with a front output shaft seal is fluid leaking from the front of the transfer case. The oil is for the diff gears and does not go into the shaft itself. 2006 Audi A4 Quattro 65,000 mi, Visitor. Now check rubber seal boot around the shifter to the tranny. We have to store our boat with the drives up (our mooring is too shallow at low tide), so then it leaks into the engine compartment. The owner thinking it was the rear seal at the output shaft housing – replaced the seal. This is a huge problem and I expect most will leak. Synthetic oils can be very costly, and having a component that leaks these fluids is similar to throwing money down the drain. If you have a transmission fluid leak at the output shaft seal you will see evidence of fluid leaks where your CV axle exits your transmission or where the driveshaft exits the transmission on a rear wheel drive vehicle. If … This is one of the reasons why Reckon decided to use grease instead of oil! If bearings wear due to torque overload or lubrication problems or mis-alignment or excessive overhang load, then they can’t hold shafts and gears in place. Differential and not gearbox oil should be used, GL4/5 rated. I have a gear oil leak coming from my left hand driveshaft. To my surprise the part was at my door the next day! A few simple steps will allow the power steering pump to be removed fairly easily. So I went out to check on the boat today and noticed that the outdrive (bravo 1) has a small puddle of oil under it. On my 3rd oil change the drive shaft at the trans is just seeping a bit now. The new seal was a perfect match. Just serviced the van to get ready for our main trip this year, and thought all was well. Several manufacturers make compounds that can be added to the oil to help mitigate leakage. As you can see, its much more obvious from this view that there is a larger area of surface oxidation on the inside of the yoke plug that could cause a much larger leak if left untreated. It is normal for a small amount of gear lube to leak past the shaft seals. richc69. These compounds work along the same lines as radiator sealants that form deposits at the point of leakage. If mine is a Renault gearbox (1997 2.0 V40), then I've read this fix on another forum for somebody with a similar problem). It appeared to be in good shape, and there was NO evidence of gear oil leaking from it. The small hole was repaired with JB weld available from most auto parts and hardware stores. Excessive oil is a typical cause of gearboxes leaking oil. The Operator's Manual indicates that the transmission fluid levels should be checked regularly and serviced as needed. 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