leebigdogva
New Member
05 chopper, noticed engine making unusual sound close to home. Thought maybe exhaust loose but checked ok. Found leak on rear jug gasket. Any help ??
X2--Just had one blow out on me, if you attempt to do this yourself all I can say is make sure to follow the S&S instructions, it is critical that it's done correctly, trust me you don't want to do it again!
OK! I promise. Never have and never will. When a guy with your chops tells me emphatically, I listen....You NEVER / DON'T re torque heads on a Harley/Utima, S&S, etc. style engine, no matter what type of head gaskets you use.....
Can't be emphasized enough.
John
1+Hoping you have a minute to explain.....
So after you heat cycle the engine several times, is it ok to go WOT? How high of rpm's are safe with a 585 cam? I think I read somewhere that these bikes have a built in rev limiter and it kicks in around 6,000 rpm.It's all about thermal dynamics.
Talk to a V-Twin head gasket manufacturer, or check the web for info.(Lengthy explanation).
Heat cycle the motor several times after assembly, get it tuned if any upgrades, and ride it. NO re-torque.
Oh, by the way NEVER use Loctite on the cylinder head fasteners to studs. A drop of oil on the threads, and under the fastener heads is all that's needed before torqueing.
John
Sven? John? Anybody??????So after you heat cycle the engine several times, is it ok to go WOT? How high of rpm's are safe with a 585 cam? I think I read somewhere that these bikes have a built in rev limiter and it kicks in around 6,000 rpm.
Yes Sir.Is that chart from the TH programable ignition?
So, basically you are saying that you've never heat cycled your engines when you installed head gaskets and have had no problems at all, I am not that ballsy so I think after a few tanks of gas it should be fine! Thanks Sven!You hope 6241 would be the rev limiter kicking in. That's a pretty high rpm level, but if it peaks at 6240, I would not want to miss a gear at that rpm. Look at the handcuffing of the processor. 0-7= 8. To me, it is beauty in action. Notice the flipflop getting there. That's why this bike is so computer savvy or the engineer(s) that made this box and exploited the wink-wink (8) in computer speak. Think binary so you sort of get the processing part of the box you are messing with. Same goes with that speedo cutting out/cutting in. Gotta know ROM-RAM to decipher if hits hardware or software hitting the brain vs. handcuffing. So this rev limiter is all about flipflop.
So if the abstract says 0-7 = 8 @ 6240, then 6241 is the rev limiter??? I played out my 8 handcuffs, anything past 6240 goes to ground??? That's how I would design the flipflop. That's how I see and I'm sure I'm wrong in step, but it sure steps like I could kill it at 6241 if flip flops to ground... and data how it words is ground RAM... where are we in rpm? Fucking complicated I know... simple at the same time is the abstract.
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Brand new bikes/cars/trucks/etc... is there a reference in the owner's manual as to start and stop for a heat cycle? No.
Have I assembled engines with new gaskets and oh look service manager, the owner did not cycle his new gaskets and here is a comeback? Never happened I had to replace gaskets, the owners did not follow procedure? Nope... no comebacks... gaskets wise.
Been racing for say 16 years worth of rebuilds and once it starts it was 6 hours before it was turned off and those rpms were super high no heat cycles. Did I ever have a DNF from a gasket I never heat cycle? Nope.
Owning Brand new bikes, rebuilt bikes, not once did I need to heat cycle what might be a fallacy, if the field comes up with dry heads and I'm talking about 1000's of bikes I've changed head gaskets on in my career... working [dealer level] on US/J/G/Brit bikes/GM cars and that little stint [heavy line = eng rebuilds/trans/rear end/4x] being a gearhead, and having that for a backup/back-pocket career.
Big time failure was to reline the silicone on vette engines. So off goes the intake manifold, scrape the water jackets clean for new gaskets, run the silicone down the fore and aft manifold ends or the engine block and close that gap from the rise of the gaskets... If that's in a heat cycle and no mention of a bulletin>>> of having the field [new car owners] being clueless of heat cycling their new car...??? I made no mention and knew about that theory way back when... another story.
Home he here dose no cycle if I send you a dose of (1)new/used gaskets out in the field, (2)the owner's manual, (3)no [bike/car] factory bulletin of their gaskets needing a heat cycle, (4)or as we speak are millions of new cars sold; are they off to the side of the road smoking steam or oil is.... my kingdom for a "FALLACY?"
Signed,
Thermally speaking... I love an argument with all that new shit out there and still no mention about break-in for gaskets in said owner's man you will pay pushing theory for theory, let alone a factory bulletin-break-in.
how many times did I already told ya?????????So, basically you are saying that you've never heat cycled your engines when you installed head gaskets and have had no problems at all, I am not that ballsy so I think after a few tanks of gas it should be fine! Thanks Sven!
Your welcome and correct. I agree with John about one torque to the heads and you are done. As far as heat cycle, totally your call. I'm just an observer seeing new cars/bikes make no mention of an initial heat cycle to the gaskets.So, basically you are saying that you've never heat cycled your engines when you installed head gaskets and have had no problems at all, I am not that ballsy so I think after a few tanks of gas it should be fine! Thanks Sven!