Heat Cycling Big Bore Install
Seasoned HDF Member
Joined: Mar 2021
Posts: 18,474
Likes: 3,723
From: backwoods
I use cheap oil.
Start it up, let lifters pump up. That is a scary sound if they don't right away.. Let it run 30 seconds ish. Let it cool, do it again longer, do this a few times. Maybe some gentle revs.
First time I did it my own garage. Last couple I did it in my budies shop with huge fan running. Interesting to note, the bikes really don't get warm. You can sit at a stop light for a minute or so, with a hot bike. A cold bike can run a minute, and still be cold.
First time i ever did it changed it at 50 miles and 500, last two times, just changed at 500 miles. Then take it easy for first 50 miles, gentle roll ons. 50 miles mark give it a goose.
And this is a hottly debated debate, longer than I have been alive. Many people just pound them right away. Those are also the people that generally pound their stuff anyways. I don't know which works better,
Start it up, let lifters pump up. That is a scary sound if they don't right away.. Let it run 30 seconds ish. Let it cool, do it again longer, do this a few times. Maybe some gentle revs.
First time I did it my own garage. Last couple I did it in my budies shop with huge fan running. Interesting to note, the bikes really don't get warm. You can sit at a stop light for a minute or so, with a hot bike. A cold bike can run a minute, and still be cold.
First time i ever did it changed it at 50 miles and 500, last two times, just changed at 500 miles. Then take it easy for first 50 miles, gentle roll ons. 50 miles mark give it a goose.
And this is a hottly debated debate, longer than I have been alive. Many people just pound them right away. Those are also the people that generally pound their stuff anyways. I don't know which works better,
Seasoned HDF Member
Joined: Mar 2021
Posts: 18,474
Likes: 3,723
From: backwoods
I dump some oil in the bottom end too.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,939
Likes: 8,036
From: poway
Don't use assembly lube in the cylinders, use MMO..
https://www.hdforums.com/forum/engin...l#post20461046
https://www.hdforums.com/forum/engin...l#post20461046
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,939
Likes: 8,036
From: poway
I soke them, and last time saw oil coming out the filter mount from setting up adjustable rods. I think they still banged a little. Another way is take the plugs out and turn engine over. Some people will take fuse out of fuel pump too.
I dump some oil in the bottom end too.
I dump some oil in the bottom end too.
Seasoned HDF Member
Joined: Mar 2021
Posts: 18,474
Likes: 3,723
From: backwoods
Don't use assembly lube in the cylinders, use MMO..
https://www.hdforums.com/forum/engin...l#post20461046
https://www.hdforums.com/forum/engin...l#post20461046
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,939
Likes: 8,036
From: poway
FWIW it was also mentioned above..
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