| Author | Message | ||
     Slowride |
Let me start by saying that I posted other items in the Knowledge Vault and Never received a reply. That is why I am hitting the quick board. I am hoping for a quick answer. History: I noticed I had some oil leaking around the Front Rockerbox so I replaced the gaskets on both. When I tore them down I did the unthinkable and didn't label which location the umbrella gaskets came from on each head. So I tore open the manual and put the one in the far front closest to the forks on the front head and one far front closest to the carb. on the rear head. This resulted in some leaking more than normal from the breather tube tied under my rear fender over my tire hugger. So I tore the rocker box covers down again and moved the front head umbrella gasket back closest to the carb. and drilled the holes out to 1/8" per the X1 files. This has resulted in even more oil puking out the breather hose/filter. Question: What is the correct placement of the Umbrella gaskets? What would be causing the increase in oil coming from the breather area. | ||
| Ceejay |
Kind of an odd question, since you seem mechanically inclined but how much oil are you putting in the bag? from what I have found by reading and also screwing up on my own is that the tubers and probably the XB's too, are pretty sensitive to overfilling and will often let you know by throwing it out of the breathers. If I remember right mine are away from the breathers/carb but I haven't been in there in a while. | ||
| Slowride |
Thanks for the credit! When I purchased the bike the previous owner told me that I was to fill the Oil to only half way up the dip stick. My last oil change was done about 3 weeks ago and I put two quarts of oil in with a new filter. I then ran the bike for about 5 min. I then checked the level; it wasn't showing on the stick so i added oil until it was halfway up the dipstick. This equated to about 2 1/2 quarts. I noticed within about an hour of riding it that it was puking oil out pretty badly from the oil bag. So I drained the oil out until it was barely touching the bottom of the dipstick. I have ridden about 600 miles since then and it still is having this issue. I commute daily to the tune of 50miles round trip. Every day when I get to the house I am seeing a good coating on my rear hugger and down my swingarm. | ||
| Slowride |
Let me say it was 2 1/2 quarts total in the bike after the fillup. | ||
| Reepicheep |
And just to make sure there is no confusion, you routed the breather tube to the location under the rear tail section yourself, right? If you are talking about the breather tube that is in that location from the factory, that is the tranny breather, not the rocker box breathers, and your leakage is probably caused by a bad crank seal (easy fix) and has nothing to do with the rocker boxes. | ||
| Slowride |
Yes, The previous owner routed the tube there after installing a force winder intake. I do see the tranny vent tube as well. Crank seal? Ok, I will look in the trusty manual. What constitutes an easy fix? | ||
| Firemanjim |
I was going to suggest the same thing as Bill.Usually oil puking is from trans vent tube when engine seal goes and oil under pressure goes into trans and overfills it.Check to make sure which tube the oil is actually coming from.Strap a couple of plastic bottles on to the end of the hoses and see which one is puking. Looking at my manual under the oiling system it shows a pic of the umbrella valve as placed in the hole directly above the carb mounting/aircleaner backing plate mounting holes. Look at the S-1 manual in KV for pic. http://www.badweatherbikers.com/buell/Manuals/S1_1996-1997_Service/BU3b.pdf | ||
| Slowride |
I am sorry for any confusion. The oil is coming from the Engine Breather Tube and not the Trans breather tube. Fireman, your manual shows the sames as mine for the back head. Does this mean that on the front head the Umbrella gasket would sit closest to the forks or the carbs? I guess I need to figure out that first. | ||
| Reepicheep |
First figure out which vent is leaking as Jim Recommends. It would be an interesting excercise to put a balloon over the tranny vent hose on a bike with a bad crank seal. I wonder if you could see the "leak"? In this case, "Easy" means pulling the primary cover, removing the stator magnet cup and clutch pack and primary chain as a unit, then replacing the seal. You will need some big sockets for the nuts, a bar to lock the primary sprockets when removing the crank and transmission nuts, and a special tool for seating the new seal. All the "special" tools can be bought or created reasonably easily. The hardest part for me was getting the old seal out without hacking up the case mating surface. That aluminum was soft as butter, and that old seal was wedged in *tight* and hard to get a good grip on. But figure out which vent is leaking first. If you have the (smelly) tranmission oil in the primary, you might be able to tell by smell. | ||
| Slowride |
Any suggestions on the Umbrella Gasket placement on the forward Head? Closest to the Forks or the Carb? | ||
| Djkaplan |
I'm pretty sure the umbrella gaskets are both pointed at the carb. | ||
| Sportyeric |
Both umbrella gaskets closest to the carb. | ||
| Slowride |
Great! SO I have them installed right. Now I need to figure out why it is spitting so much oil. Is 2 1/2 Quarts right? Should it be to the middle of the dipstick or at the bottom of it? I can say it is definately oil coming out and nothing else. I run Mobil 20/50 syn and that is what is coming out. | ||
| Philip |
how many miles on the motor. could it be excessive blow by the rings? just a thought. | ||
| M2me |
Did you put in new umbrella valves or just reuse the old ones? I have found that the valves can get really stiff with age. It's surprising to compare a new one with an old one. The old ones can feel like hard plastic while the new ones are very soft and pliable. I usually keep the oil between the bottom of the dipstick and the middle. Much over the middle and it starts to puke more. You might want to switch to the XB covers. I did this spring and I still get a little puking but no where near what I used to. The instructions are in the KV somewhere. The whole thing cost me a little over $100. Well worth it. | ||
| Slowride |
Thanks for all the help. I have been watching the tube and I still see some leaking, but far less than before. I am wondering if I had some oil built up in the line. Now that I have corrected the Umbrella gaskets and drilled the rocker box per the x1 files I am guessing it is pushing the right amount of air in and out, thus expelling the built up oil. M2me, where did you buy the xb covers from? I saw that mod in the x1 files as well. | ||
| Tripp |
call dave stueve (badweb sponsor), that's where i got all the stuff to do mine. check this out:http://www.badweatherbikers.com/buell/messages/3842/34533.html?1123860416 | ||
| Al_lighton |
Or if you want to buy it as a kit with ALL the parts you need, with polished rockerboxes, see here: http://www.americansportbike.com/shop/cgi-bin/cp-app.cgi?usr=51F7889514&rnd=1747 091&rrc=N&affl=&cip=69.160.135.44&act=&aff=&pg=prod&ref=16029&cat=&catstr=HOME | ||
| Shanetbolt |
I have had some oil puking also. I have changed two things, new umbrella seals in the rocker boxes and I made my own little see through breather catch can right next to the battery above the drive belt. Since I did those two changes I have not seen any oil coming out. I figured my oil was coming out due to air flow passing by where the hose used to be causing low pressure and sucking oil out. Now that the hose is connected to a catch can and no air can pass by it, I have not seen any oil come out. My bike stays nice and dry now. But I did make two changes, maybe the umbrella seals were not doing their job and the new ones actually work. In any case I'm happy. |
