OIL LEAK ON REAR CYLENDER

[jriffe108]

Make sure you use revised part for
replacement and go ahead and do both cylinders
While you're there.

[wolfo68]

definitely replace, if it's a head gasket you'd have more going on than just oil. or you will shortly. that's why I don't have a bike right now. and I have a spare fan that looks like I took a torch to it

[Buell_Cru]

You don't have to drop the motor to replace the rocker box gasket and it's a fairly simple job if you know how to take puzzles apart and put them back together. You will also need a torque wrench that reads in inch/pounds not foot/pounds.

[jriffe108]

You will absolutely have to rotate the engine down to remove the rear cylinder rocker cover. I looked at every possible option to avoid rotating the engine. The clearance just isn't there.

This is on an '08 XB12SCG.

[Laroucheyves]

Can I or not replace the rear rocker box gasket without rotating the engine?

[thumpin1203]

I had an oil leak on the rear head and it turned out to be the a simple PCV grommet that had shrunk a bit due to the heat and gotten a bit loose allowing oil to seep and run down the rear of the head.. kinda looked like a rocker gasket was bad cause the oil didnt start to coke untill it got down to the hot head.. all I did was put an O-ring in the grommet groove, cleaned all the oil off, and re-installed the PCV.. it was a very snug fit, just what I wanted.. problem solved, no more seep!

[stellio78]

jriffe108 do you know if the rocker cover gaskets part # 17362-07B the same for all years?

[jriffe108]

Stellio, as far as I know. Thunderstorm heads on mine but the rocker cover is identical to an XL (sportster) so they should all be the same.

Verify with HD parts counter though.

Some of the guys here have had luck with James gaskets.
Might want to look into that as well.

[stellio78]

Thanks.

[rvdb]

this board is great, I believe I am having the same problem & I searched and found this info with pic's, time to get into it, thanks