Question about 2000 Harley Davidson FXDWG Dyna Wide Glide

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How do you replace the inner primary seal - 2000 Harley Davidson FXDWG Dyna Wide Glide

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Unless you have done this before i would not attempt it unless you get some help.

Posted on Jun 28, 2009

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Posted on Jan 02, 2017

wd4ity
  • 4565 Answers

SOURCE: I have a 2004 Duece

Did you check your front belt pulley? These pulleys are made of relatively soft cast iron as compared to the final drive gear. This is so that the easily replaced and relatively inexpensive front pulley wears before the difficult to replace and expensive final drive gear wears. The pulley will wear in the splined inner bore and will get loose on the final drive gear. Then transmission oil will run out of the pulley and down the inner primary. This is because of the lose of pressure on the "Quad" ring behind the pulley spacer. This may be your problem.

Another mistake a LOT of people make when replacing any seal is putting the seal up dry. On the inner primary seal, you want to put a bit sealer compound around the outer edge of the seal where it goes into the case. Although there are a lot new sealants out there, I still prefer good Permatex non-hardening. Once you get the seal in and straight, oil the inner seal surfaces and the bearing race. If you put the seal up dry, you start the engine, the mainshaft turns about 1000 rpm. This will burn up the delicate rubber lips on the seal almost instantly because of friction before the oil can get to the seal. You MUST lubricate the seal or it WILL burn up before you can blink an eye.

Also check the position of the inner primary bearing race. It must be 0.100" from the final drive gear. If it's way out of position, the seal may not be riding properly on it.

If you are in doubt about whether the transmission is leaking or the primary, refill the primary with a quart of automatic transmission fluid, the red stuff. It will work long enough for you to determine whether it's the transmission leaking or the primary leaking. If it's the transmission, check the front belt drive pulley for wear, You'll usually find that the large nut that holds it on is loose.

Good Luck
Steve

Posted on Dec 28, 2010

  • 9 Answers

SOURCE: oil leak at inner primary

06 Road king inner primary leak where shift lever comes out, seal was leaking...Under warranty fixed no charge, no further issues!

I have heard of this same leak on the V-twin Harleys due to normal motor vibration "unbalanced" which is normal on the older models the 2008's and newer baggers have a differant mounting system that eliminates the vibration/ jumping/ loping/ which again is a normal Harley engine

Posted on Mar 24, 2010

wd4ity
  • 4565 Answers

SOURCE: oil leak -between inner primary and transmission

There are several seals that can leak in this area. You say you replaced the mainshaft seal in the back of the primary. I've seen a lot of people replace this seal only to have it start leaking immediately. The reason was that they didn't know you must lubricate the seal before you reinstall the primary cover. When you put the primary cover on with the seal dry, when the engine starts up, the mainshaft immediately goes to 1000 RPM or higher with no lubrication on the seal. The friction burns the lip of the seal up before the lubrication in the primary can get there. It only take a second, literally.

Other seals that can cause leaks in this area are the large final drive gear seal in the face of the transmission behind the front belt pulley and the "Quad" seal that is inside the transmission. The Quad seal is almost like an O-ring. It's purpose is to prevent transmission lubricant from seeping out through the splines of the final drive gear. If the front sprocket splines wear and the sprocket gets the slightest bit loose, the compression on the Quad seal will be lost and the tranny will leak. The tale tell sign on this leak is that the transmission will leak a spot of oil about the size of a quarter or a bit bigger when you park the bike. If you wipe up the spot, it won't leak anymore until you either ride the bike or simply start the engine. Then it'll leak that quarter sized spot and stop. Check your lube level in your transmission.

Whenever I pull the inner primary and the belt on a Big Twin, I replace ALL the seals. Make sure you lubricate the lips on the seals so they don't cook before lubrication can get to the seal.

Good Luck
Steve

Posted on Jul 13, 2010

wd4ity
  • 4565 Answers

SOURCE: How to replace inner primary

Replacing the inner primary seal is a major job. You must remove all the primary drive components such as the primary chain and the clutch assembly. Then the exhaust system so you can get to the starter to remove it. Then you must remove the inner primary itself from the engne and the transmission. The seal is on the backside of the inner primary. If you replace the seal, remember to lubricate the lips of the seal as well as the mainshaft before you reinstall the inner primary. If you install the seal dry, when you start the engine the mainshaft will burn up the seal in about three seconds before the oil gets to the seal. Put some oil on that seal.

Now, once you're in there, you may find that it isn't your inner primary leaking at all. It could be a transmission seal. One of the worst culprits is the Quad Seal behind the spacer that is behind the front belt pulley. You'll need some special tools to remove the pulley and replace this seal if it's leaking. It looks like a standard O-ring but it isn't. Both the compensator sprocket nut and the front pulley nut require a LOT of torque. The compensator nut takes 150-165 foot pounds and the front pulley nut takes 150 foot pounds. Also, the mainshaft nut that holds the clutch assembly on takes 60-80 foot pounds of torque LEFT-HANDED. You will need a way to lock the front pulley and the primary chain in order to apply these levels of torque to the required fasteners.

This is a complicated job. That's why Harley charges so much to do it. I would suggest that you purchase a service manual as there is far too much involved in this job for me to type it in step by step here.

Good Luck
Steve

Posted on Aug 05, 2010

  • 1 Answer

SOURCE: I have a 2004 Duece FXSTD. Drops of oil was found

not the inner primary it is the starter seal i have the same problem and cant seem to stop it even after changing the seal

Posted on May 03, 2011

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Replace drive belt 2003 harley road king


this is a pretty big job, the whole primary needs to come off, clutches, compensating sprocket, and inner primary. you need to unbolt the swingarm, remove the left side isolator, unbolt left shock, carefull sneak the belt between the trans housing and swingarm. If you wanna tackle this yourself. your are gonna need a manual, there are alot of specs to follow. you really need to look closely at the 3 transmission seals, any wetness, i would change them, i usually change them all anyway. you need to change the inner primary seal and starter shaft seal while you're in there.

Mar 20, 2012 | 2003 Harley Davidson FLHR Road king

2 Answers

I have leak from what seems to be from behind the primary case.


sometimes the mainshaft leaks.. ****** ..or I have seen where shifter exits the ****** behind the primary that seal leaks ,, look under & from above ..anyway youll pull the primary..to fix good luck..check out our info at harleytalking.com....

Aug 16, 2011 | 2000 Harley Davidson FLSTC Heritage...

1 Answer

Inner primary seal keeps leaking replaced three times all other seals replaced to rode another 1200 kms leaking out inner primary seal still which brand off equitment do you reccommend to use or why is it...


There are several places that could be leaking in this area. First let's talk about the seal that goes in the backside of the inner primary. I always use the James double lipped seal in this area. When you install the seal, put some sealant on the outside circumference of the seal. It must be installed to just below the surface of the primary and it must be straight. Before putting the inner primary back on, lubricate the inner bore of the seal as well as the surface the seal is going to seal against. If the engine starts up and seal has no lubrication on it, the friction will burn the delicate sealing lips and they will be damaged. Your leak could also be the large seal in the face of the transmission behind the front belt pulley. Everything I just said about the inner primary seal applies to this seal as well. The last thing is the pulley could be worn in the spline area in the center of the pulley. You didn't say what year model your bike was but over time, these splines wear and the pulley becomes loose. When this happens, the tension on the "quad seal" behind the spacer on the transmission main shaft fails. Transmission lubricant seeps down between the mainshaft and the spacer and out of the splined area of the front belt pulley. Take the lock plate off the front pulley and check to see if the large nut is tight. If it isn't tight, this could be the problem. The large nut has LEFT HANDED THREADS. Retorque the nut to 150 Foot Pounds. You'll need a special socket and sprocket locking tool to do this job. Take the pulley off and check the splines and replace the quad seal. Make sure you check all the areas whenever you have the inner primary off.

Jul 17, 2011 | Harley Davidson FXDL Dyna Low Rider...

1 Answer

I have a 2004 Duece FXSTD. Drops of oil was found on the floor under clutch area of the primary. After some inspection, I found that it was streaming from the inner primary.Got a seal set from Motor...


Did you check your front belt pulley? These pulleys are made of relatively soft cast iron as compared to the final drive gear. This is so that the easily replaced and relatively inexpensive front pulley wears before the difficult to replace and expensive final drive gear wears. The pulley will wear in the splined inner bore and will get loose on the final drive gear. Then transmission oil will run out of the pulley and down the inner primary. This is because of the lose of pressure on the "Quad" ring behind the pulley spacer. This may be your problem.

Another mistake a LOT of people make when replacing any seal is putting the seal up dry. On the inner primary seal, you want to put a bit sealer compound around the outer edge of the seal where it goes into the case. Although there are a lot new sealants out there, I still prefer good Permatex non-hardening. Once you get the seal in and straight, oil the inner seal surfaces and the bearing race. If you put the seal up dry, you start the engine, the mainshaft turns about 1000 rpm. This will burn up the delicate rubber lips on the seal almost instantly because of friction before the oil can get to the seal. You MUST lubricate the seal or it WILL burn up before you can blink an eye.

Also check the position of the inner primary bearing race. It must be 0.100" from the final drive gear. If it's way out of position, the seal may not be riding properly on it.

If you are in doubt about whether the transmission is leaking or the primary, refill the primary with a quart of automatic transmission fluid, the red stuff. It will work long enough for you to determine whether it's the transmission leaking or the primary leaking. If it's the transmission, check the front belt drive pulley for wear, You'll usually find that the large nut that holds it on is loose.

Good Luck
Steve

Dec 27, 2010 | 2004 Harley Davidson FXSTD - FXSTDI...

1 Answer

Leaking primary


If the primary is leaking on the backside, you must pull the entire primary drive to gain access to the backside.

Start by draining the primary. Disconnect the battery, remove the outer primary cover, jackshaft for the starter, the engine sprocket nut, remove the circlip and remove the clutch rod adjuster, remove the mainshaft nut to get the clutch off (left-handed threads), primary chain adjuster.

From the right side of the bike, remove the exhaust system to gain access to the starter. Remove the starter.

Go back to the left side and remove the bolts that secure the inner primary to the engine and transmission. Once you have all the bolts out, the primary cover should come off easily. If it doesn't, look for a bolt that you may have missed including on the backside.

Now that you have the inner primary cover off, you can replace the seal on the backside of the cover. Install the seal but before you put the cover back on, you must lubricate the inner lips of the seal where it rides on the mainshaft. Many people don't do this and they destroy the seal in the first five seconds of running. Without lubrication, the mainshaft turns so fast that friction will build up heat and damage the seal within the first few seconds of operation before oil can get to the seal. Lubricate that seal.

Now , Since you've got the inner primary off, there are some seals in the transmission that should be replaced as well. I always replace every seal back there everytime I go into that area. Replace the large final drive gear seal as the thin seal between the mainshaft and the final drive gear. I also replace the Quad Seal behind the spacer behind the belt pulley. This will require the special tools necessary to remove the pulley. If you have those, I'd recommend doing this job as well.

As you can see, this is not a job for the faint of heart. It's a complicated job and a lenthy job. This is why the dealer charges so much to do the job. Now, my experience on doing this job is on the earlier Evo and Shovelhead models but the Twin Cam can't be that much different. I'll help as much as I can via this medium but I must recommend that you purchase a service manual. This medium does have it's limitations.

Good Luck
Steve

Aug 05, 2010 | 2001 Harley Davidson FLHRCI Road King...

1 Answer

How to replace inner primary seal


Replacing the inner primary seal is a major job. You must remove all the primary drive components such as the primary chain and the clutch assembly. Then the exhaust system so you can get to the starter to remove it. Then you must remove the inner primary itself from the engne and the transmission. The seal is on the backside of the inner primary. If you replace the seal, remember to lubricate the lips of the seal as well as the mainshaft before you reinstall the inner primary. If you install the seal dry, when you start the engine the mainshaft will burn up the seal in about three seconds before the oil gets to the seal. Put some oil on that seal.

Now, once you're in there, you may find that it isn't your inner primary leaking at all. It could be a transmission seal. One of the worst culprits is the Quad Seal behind the spacer that is behind the front belt pulley. You'll need some special tools to remove the pulley and replace this seal if it's leaking. It looks like a standard O-ring but it isn't. Both the compensator sprocket nut and the front pulley nut require a LOT of torque. The compensator nut takes 150-165 foot pounds and the front pulley nut takes 150 foot pounds. Also, the mainshaft nut that holds the clutch assembly on takes 60-80 foot pounds of torque LEFT-HANDED. You will need a way to lock the front pulley and the primary chain in order to apply these levels of torque to the required fasteners.

This is a complicated job. That's why Harley charges so much to do it. I would suggest that you purchase a service manual as there is far too much involved in this job for me to type it in step by step here.

Good Luck
Steve

Aug 05, 2010 | Harley Davidson FXDWG - FXDWGI Dyna Wide...

1 Answer

Severe transmission oil leak on a 04 softail. Leaked out on left side


Two places could be leaking. Primary cover leak on either side. Outside gaskets are not very difficult to replace. There is a oil seal on the backside that requires the removal of the inner primary. This is a difficult job for the amateur hobbist mechanic but it can be done. You'll need a lot of tool including a torque wrench that will torque a left hand threaded nut and one that will torque to 150 foot pounds. You'll also need a primary locking bar.

So, as you can see, if it's anything other than an outer primary cover, inspection cover, or derby cover leak, it's probably best to take it to a shop. If you do this, have them pull and inspect the front belt drive pulley while they're in there. Also, replace the transmission main shaft seal (small one) the final drive gear seal (the big one) and the "quad seal" behind the spacer for the pulley (like an o-ring). And replace the oil seal on the backside of the inner primary cover. Good Luck

Sep 17, 2009 | 2004 Harley Davidson FLSTC - FLSTCI...

1 Answer

Have devolped a small leak on 2005 road king. drips from bottom of primary cover at drain bolt. running down from above. back of primary cover has slight oil dampness around transmission and starter shaft...


Spray it off at the car wash to remove all the oil , then spray Right Guard (Yes, that Right Guard) on the area of the leak. It will show up, but you may not be able to see exactly where. There are a couple spots where it can leak. The jackshaft oil seal, as you said, transmission output shaft (clutch shaft) on the trans itself, the inner primary seal where the trans shaft runs thru, the engine sprocket shaft oil seal, inner primary O-ring, the bolts that hold the inner primary to the engine/trans, the primary chaincase gasket and the drain plug. Hopefully when you get it apart, you will see which seal is leaking. If not, replace them all. Still want to fix the leak? LOL

Jun 30, 2009 | 2005 Harley Davidson FLHR - FLHRI Road...

3 Answers

Leaking both oil and a mixture of oil and water


well when you have water and oil both leaking it most of the time means a head gasket or in your case a jug gasket

May 25, 2009 | 2004 Yamaha YZ 250

2 Answers

Oil leak at inner primary


Most inner primary leaks come from the alternator o-ring the best thing to do is put on a new one and put clear silicone on the primary and the engine case.

Feb 01, 2009 | 2000 Harley Davidson FXDWG Dyna Wide Glide

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