Why do these bikes sound different?
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,613
Likes: 3,380
From: Cental, MI
Besides, if everything Recommended in the Book needed to be Defended and Defined... How big ya think that book would be?????
Some people Defend their [mis] beliefs to the Grave even!!! Can't do Nuthin about it..
Banned
Joined: May 2018
Posts: 4,576
Likes: 978
From: Viet Vet, crossroads
I have stood down, until I find the proof -if there is any.
It seems like it is written in my hard drive somewhere..
Now i want to know where and why.
Other wise I have to retract the statement .
It seems like it is written in my hard drive somewhere..
Now i want to know where and why.
Other wise I have to retract the statement .
Cruiser
Joined: Aug 2008
Posts: 190
Likes: 25
From: Rotterdam, Netherlands
Car manufacturers used to call U joint failures "brinneling " which came from transport sitting still on trucks.
This of course was referring to new cars with fairly low miles and very early U joint failures
"Brinelling
Brinelling is the permanent indentation of a hard surface. It is named after the Brinell scale of hardness, in which a small ball is pushed against a hard surface at a preset level of force, and the depth and diameter of the mark indicates the Brinell hardness of the surface.More at Wikipedia"
This of course was referring to new cars with fairly low miles and very early U joint failures
"Brinelling
Brinelling is the permanent indentation of a hard surface. It is named after the Brinell scale of hardness, in which a small ball is pushed against a hard surface at a preset level of force, and the depth and diameter of the mark indicates the Brinell hardness of the surface.More at Wikipedia"
We don't have word for Brinelling though 
Its just that there are so many different stories about it (all of course with the best intentions), when you brought it up I hoped to finally get it clear as to why the whole world seems to idle as low as possible, while they should not do it because its bad.
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,613
Likes: 3,380
From: Cental, MI
I stand by what I wrote...
Having been a Shop Owner, in a Fairly small community, where we Know all of the Bike Owners Far and Wide... You will find that the guy who consistently Idles that low, will consistently need a Bottom End when we finally get it in the shop..In fact one Meticulous by the book type guy... has Not had a Bottom End in Many many Miles.. Just Lucky I bet!!
Stellar HDF Member
Joined: Nov 2010
Posts: 3,120
Likes: 1,146
From: Directly above the center of the Earth
The idle on the '98 is lower than 8-900, more like 700, possibly 600. The other bike sounds like it's idling right. My H-D service manual for my '98 FXD Super Glide says to idle at 1050-1100, and the other bike in the videos sounds like it's about right. His carb isn't tuned very well though. There was a severe hesitation on a few of the blips.
Stellar HDF Member
Joined: Nov 2010
Posts: 3,120
Likes: 1,146
From: Directly above the center of the Earth
Why not? During the rebuild I did I got oil from the rockers when cranking the engine by turning the rear wheel by hand. I got even more when cranking it on the starter which is about 200 rpm. Why would there be no oil at 500 rpm?
My pressure gauge tells me there is oil, even about as much as 400 rpm higher. On hot days there is 0 psi, but then there is also 0 psi at 900 rpm. For what oil pressure is worth in a roller bearing engine...
My pressure gauge tells me there is oil, even about as much as 400 rpm higher. On hot days there is 0 psi, but then there is also 0 psi at 900 rpm. For what oil pressure is worth in a roller bearing engine...
And yes, you are correct about the oil, it's *not* anything to do with it not getting enough oil rotating at 500 rpm's, it'll get plenty of oil at 50 rpm's, but then that would be even harder on the parts alreaqdy mentioned - oiled or not.
Seasoned HDF Member
Joined: Apr 2018
Posts: 7,968
Likes: 15,829
From: Florida
When I had my "Sifton" top end, head work, etc., dual fire ignition on my FXR and an S&S Super B my engine sounded just like the first one except I had the idle set a little higher. Definitely the ba da dup - ba da dup - ba da dup potato sound. I also ran straight pipes then too.
Then I installed dual plug heads, single fire ignition, an S&S Shorty E, a slightly milder cam and Pythons with baffles mine now sounds like the second one.
Seriously it was like listening to the two versions of my bike in the vids above.
Then I installed dual plug heads, single fire ignition, an S&S Shorty E, a slightly milder cam and Pythons with baffles mine now sounds like the second one.
Seriously it was like listening to the two versions of my bike in the vids above.
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