When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Nothing was decked. 9.5-1 comp pistons now. The manual shows an o-ring that sits ON TOP OF the dowels.
So no still?
decking the pistons is a simple measurement with each cylinder at TDC in it's bore without the head on...when the piston is at its highest point in the bore, with the cylinders fastened to the case (not torqued!)... the top of the piston at its edge should be flush with the surface of the cylinder...if it rises higher, you obviously need a thicker head gasket...if it's lower, then a thinner one...if it's spot on, then no worries... stock or something thinner is fine, depending on build
you should do this to make sure you have the proper guaged cometic gasket, unless everything is stock...in which case, your head gasket should be a stock .045
and no, you do not use the o-rings with cometic gaskets....also, cometic likes you to use their torque procedures...not what's outlined in the HD manual
No on the o rings with the cometic head gaskets, or the newer stock Harley head gaskets. They don't use them. Be careful torquing those cometic gaskets down. Their instructions call for a torque of 42 ft lbs. Go easy, you don't want to pull a stud out of the crankcase. I just went through that little repair.
Got her all locked down now. Followed cometic torque procedure, and went back after a couple of hours and rechecked to make sure all was well. Started to do push rods and rocker boxes, but decided to repaint lifter blocks ( I know, I should have done that already) and with that, wanted to get rid of the 12 point bolts and change em to Allen head.
She's coming back together ok so far. Should know for sure tomorrow when I fire her back up.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.