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  #1 (permalink)  
Old 04-29-2011, 04:55 AM
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oil leak where is it coming from??

I have a fine mist of oil on the right side of the oil tank every time a return from a long ride, its not coming from the carb / breather set up has anyone had this problem i suspect its from the rear rocker box gasket, the motor is 100 revtech (new generation) and has given no problems in the last few years Will harley gaskit be the same no revtech agent here in south africa thanks in advance
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Old 04-29-2011, 05:52 AM
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I'm not sure about what gaskets you need, John at Scooters can answer that better but if your rocker box is leaking it should show signs of it running down the head. A misting of oil on the right side almost has to be carb/breather related, really check your hoses and fittings. Which valve covers do you have(the Revtech ones or the Harley ones)? Where does your breather go to(atmosphere, air cleaner)?
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Old 04-29-2011, 06:24 AM
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You have 4 corners to check for a seep or breather leak out of some cooked dry/shriveled/cracked rubber gasket that may have failed.
Worst think-g you can do is bark down on a shrunk gasket is to pull the threads out of the rocker box housing, thinking you can push what might have a split you cannot squeeze together kind of heli-coil my leak nowOOhSHIT!

Do not add another problem in other words. I'm going to pull out the slapper, I hear someone start screaming about Mr. Goodwrench intake manifold silicone sealer take that to the bank you want a, "farm fix" way out in streetsweeper country. LOL
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Old 04-29-2011, 06:30 AM
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If you have a gasket leaking your going to have more oil on your engine than that oil mist on the oil tank. It really sounds like you have an oil soaked air breather. Look at where the crank case breather line is running: Does it go to the carb/air breather?
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Old 04-29-2011, 06:42 AM
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Run your finger around the bottom inside the air cleaner in the back side and you will discover from where the oil is coming!

Not a biggie.

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Old 04-29-2011, 06:48 AM
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oil leak

thanks for the replys but its not coming from the cearb / breather thought that at first washed the filter element and installed new breather system with vent to atmosphere below the bottom of motor still oil on the oiltank and slightly on the saddle and a bit on the center post looks like there is a slight trace of oil on the rcocker box but nothing much it just looks messy after a long ride at high speed does not seem to do it if you cruze at low speed
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Old 04-30-2011, 06:20 AM
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It could also be coming from the front cylinder and staying somewhat hidden on the bottom side of the cooling fins.

Use a flashlight and look on the underside of the fins.

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Old 04-30-2011, 06:39 AM
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Exactly what i was thinking...

Quote:
Originally Posted by Ricky-D View Post
It could also be coming from the front cylinder and staying somewhat hidden on the bottom side of the cooling fins.

Use a flashlight and look on the underside of the fins.

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Old 04-30-2011, 08:18 AM
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Most of Revtech Top end gaskets are different than HD stuff. Does it have two or three piece rocker boxes?
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Old 04-30-2011, 08:36 AM
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2 PIECE ITS THE 100 4X4 MOTOR who is the most helpfull on line dealer where i can order a set
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Old 04-30-2011, 08:56 AM
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found it

Quote:
Originally Posted by Ricky-D View Post
It could also be coming from the front cylinder and staying somewhat hidden on the bottom side of the cooling fins.

Use a flashlight and look on the underside of the fins.

***
when looking with the flashlight at the back of the rocker box near the seat post there is a "hole" leading into the rocker cavity and this area is wet , now to find a dealer who has the revtech 100 (4 x 4) gaskets
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Old 04-30-2011, 10:11 AM
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If you PM me I can look Monday. I am pretty sure I have all the rocker box gaskets in stock
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Old 04-30-2011, 10:17 AM
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Take brake clean, carb clean, contact cleaner; anything that will cut grease and leave a dry surface. Once you can paper towel wipe that rocker box clean with a new towel, you now light the bike off and let it idle for less than 5 minutes; being an air cooled engine.

Take a new paper towel and wipe said clean spot. Dip the paper into or around with a needle nose kind of hot head or wait till cold enough to hand wipe. Because, you are going to try and wipe one cover split at a time to pinpoint said poor seal collapse/shrink/tear/cracked/etc.
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Old 05-03-2011, 12:11 PM
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changing rocker box gasket

I managed to locate a set of rocker box gaskets here in south africa shouuld have them in a few days time I have not removed the rocker box as yet, my next quetion is does the rocker box come off easily or has the rockers etc have to removed before the lower box can be removed to replace the gasket thanks in advance
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