rocker box leaking oil
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Join Date: Jun 2007
Location: Whitley Bay, North-East England
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RE: rocker box leaking oil
The James set includes old-style two-piece paper gaskets for the lower rocker gasket area.
For myself, i think the one-piece newer H-D one works really well. I buy the actual H-D gasket set for that reason.
Another tip... before you tear it all down, have a look at the square-section tower in the centre of each rocker box. Where the square rubber gasket goes....
If you can see *ANYTHING* of that squareblack rubber gasket i.e. if the metal is not kissing metal where the two halves of that towermeet that gasket, you probably have warpage. And some oil may be flinging to the seatpost in mist form. Happened to me. Got the rocker box surfaces lapped. Made a huge difference.
For myself, i think the one-piece newer H-D one works really well. I buy the actual H-D gasket set for that reason.
Another tip... before you tear it all down, have a look at the square-section tower in the centre of each rocker box. Where the square rubber gasket goes....
If you can see *ANYTHING* of that squareblack rubber gasket i.e. if the metal is not kissing metal where the two halves of that towermeet that gasket, you probably have warpage. And some oil may be flinging to the seatpost in mist form. Happened to me. Got the rocker box surfaces lapped. Made a huge difference.
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#17
RE: rocker box leaking oil
JMO- If the top has never been apart, replace all gaskets on both cylinders,all seals on pushrod tubes and go ahead and put adjustable pushrods in. If you don't, a month or two down the road you'll be leaking somewhere else. Your over half way there, might as well do the job complete. Won't cost you much more money but will save you time by not having to do it all over again. I have used the updated HD topend gasket sets with good results- 95 Electa Evo. If you don't want to spend the money now, wait till cam time to put the adj. pushrods in. Won't be any harder.
#18
RE: rocker box leaking oil
Make sure all the surfaces are cleaned with Laquer thinner and gaskets are put on dry, I use James or cometic. The other thing no one has mentioned is you need to have 2 lifter block alignment tools to use especilly on the lower cover to make sure it's in the right place I use one in each corner of the cover then put in all of the bolts, make sure you use blue loctite and a torque wrench. The tools can be had for about 10 each. I have had the bolts loosen off especially on the top cover even when I used a torque wrench.
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