Lots of Internal Pics + Good Tech Info

[harleytuner]

Good pictures, good info thanks.  I bet they saved $.07 a unit by only having 3 screw holding the stator

[prodrag1320]

Can anybody post up the part numbers for the cylinder heads? My local dealer said he does not have any part numbers for it yet. I need to get a set to put on the flowbench.

ill check with a dealer buddy,he already sent me pics of the heads.ports,rockers,ect

[SP33DY]

ill check with a dealer buddy,he already sent me pics of the heads.ports,rockers,ect

Thank-you! I'm sure I'm not the only one here who needs to investigate the new heads!

[prodrag1320]

water cooled 107" front 16500508,rear 16500498 (weird sounding #`s,but that's what he gave me)

[SP33DY]

Thank-you for the part numbers. I'll get some ordered.

In the last couple of years they have been putting new parts in a different format than what we're used to.

[Ohio HD]

HD first used the oil cooled heads on the XR1200. I owned one and was a member of an XR1200 forum. One of the members left his bike at Zippers as a test mule and they were very impressed with how effective cooling the heads with oil was. I realize this is a different animal but just pointing out it can be effective.

Better than nothing.

Suzuki used oil cooling very effectively in the mid 2000's on naked bikes. I totally agree, it's better than nothing.     

[rbabos]

HD first used the oil cooled heads on the XR1200. I owned one and was a member of an XR1200 forum. One of the members left his bike at Zippers as a test mule and they were very impressed with how effective cooling the heads with oil was. I realize this is a different animal but just pointing out it can be effective.

Better than nothing.

Suzuki used oil cooling very effectively in the mid 2000's on naked bikes. I totally agree, it's better than nothing.     

It's a good method. Just wish they had have (internally) run the system rather then all that "Potty mouth" hanging all over the place for plumbing.
Ron

[04 SE Deuce]

Suzuki used oil cooling very effectively in the mid 2000's on naked bikes. I totally agree, it's better than nothing.     

I can remember it back in 1985 on the first GSXR's.

[Piston Broke]

I'm interested in getting a closer look at the outside of the rotor

Does lightening it in that way make any benefit? Or is it for cooling?

[Ohio HD]

Suzuki used oil cooling very effectively in the mid 2000's on naked bikes. I totally agree, it's better than nothing.     

I can remember it back in 1985 on the first GSXR's.

Could very well be, I just know about the mid 2000's as a buddy had one.

[jbexeter]

It's a good method. Just wish they had have (internally) run the system rather then all that "Potty mouth" hanging all over the place for plumbing.
Ron

External oil lines (Ok, they were for lube to the top end, not cooling to the top end) were a very common feature of many british bikes, usually done with banjo bolts and copper washers which you had to take off and re-anneal now and again, and were often a source of leaks (also dodgy pipes that did not have a strain relief loop in them) until everyone with a clue started to use dowty (hydraulic) washers with them and suddenly all the problems and leaks went away.

Vincent was known as the plumbers nightmare because of all the external lines.

I'll agree that in this day of CNC machining it should be trivial to run internal oilways, but I don't see any reason for the external ones to be a source of problems, even when the engines get ten plus years old.

I (now) fondly remember making a (return) night trip from just south of Manchester back down to the south west on the old BSA A10 in the very early 80's and noticing a loss of power...

Pulled over to the side and the bimbo on the back (the reason I rode up there, to collect her at the end of term) asked why we were stopping, said something is wrong, losing power, oh she says, is that why my right foot has been hot and slippery for the past 10 minutes........

BSA used to make oilways by drilling channels that intersected at the end, and then plugging them externally at the intersects, and one of these plugs came out and dumped the oil over the pillion peg until suddenly the bag is dry, couldn't see any of that at night of course....

When I upgraded to my first HD (a shovel) I was instantly suspicious of the oil lines, but hand on heart I cannot recall a single weep / drop / leak of any kind ever, hell the twinkie has an external oil bag.... it was the japs that made the wet sump work invisibly well... had guzzis and dukes and a load of other wet sump bikes, and all of them could and did ocassionaly puke a *very* heavy breather mist over everything... never ever had a jap bike do that.

[Tynker]

HD first used the oil cooled heads on the XR1200. I owned one and was a member of an XR1200 forum. One of the members left his bike at Zippers as a test mule and they were very impressed with how effective cooling the heads with oil was. I realize this is a different animal but just pointing out it can be effective.

Better than nothing.

Suzuki used oil cooling very effectively in the mid 2000's on naked bikes. I totally agree, it's better than nothing.     

Victory and Yamaha's 113 cid engines all have had oil cooling for years, and they work very well..

[smokedyvr]

Welcome to the 8 ball.....craeight head....or whatever. Hopefully it does better than the Twin A did! God I love my EVO's! 

[Billy]

Check out part number for item 11.

Non adjustable pushrods or rocker arms

http://www.stcharlesharleydavidson.com/OEMpartfinder.htm#/Harley-Davidson%c2%ae/FLHR_1FBC_ROAD_KING_(2017)/ROCKER_ARM_ASSEMBLY_AND_PUSHRODS/1FBC%2f%2f2017/FLHR_1FBC_ROAD_KING_(2017)%2f%2fROCKER_ARM_ASSEMBLY_AND

[twincamzz]

So yesterday I went n took a test ride on one of these new Milwaukee Eight 107s. Pretty impressed. Before the ride I was talking to the salesguy & asked if these motors are still roller bearing at crankshaft, or did HD revert to the tapered bearing set up. He told me these were so new that he did not know. So I asked if they had a service manual that we could look at to see & he said they didn't have any manuals yet...60 or so M8s, but no service manuals. lol.

* I tried the link shown at very first post & could never get it fully work. Can anyone tell me, roller bearings or did HD revert to the good old tapered timken bearings at crank ?

[glens]

Roller

[twincamzz]

Roller

Thanks for the information !

[joe_lyons]

".050" fiber head gasket. Piston sits .010" shallow of cylinder. 88.5cc chambers."

Not my pics or comment but a friend took one apart.

[BUBBIE]

 

First Above picture:

Looks like they took care of the Rocker Shaft Noise... 

signed....BUBBIE

[Piston Broke]

Looks like we are set up for a triple spark plug head upgrades!

I'm sorry, I've not been paying attention. Is it dual spark with one right in the middle? Room for one more at the other end?

[harleytuner]

CCP at 240+ and spark knock is ridiculous.  Way to go HD

[joe_lyons]

CCP at 240+ and spark knock is ridiculous.  Way to go HD

Cam miss timed?

[Nastytls]

CCP at 240+ and spark knock is ridiculous.  Way to go HD

Can you elaborate? Are you seeing this on a bike on your dyno? Are these bikes at 240ccp from the factory?

[BUBBIE]

CCP at 240+ and spark knock is ridiculous.  Way to go HD

Cam miss timed?

Gotta have the Intake Really OFF n Closing Early for 240...   

signed....BUBBIE

[FSG]

Not my pics or comment but a friend took one apart.

can you ask friend what his thoughts are regarding the ends of the rocker arms being bearing/thrust surfaces and perhaps the recess in the end is for oil