Head Gasket
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Joined: Sep 2017
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From: Ontario
Head Gasket
Does anyone know how critical it is for the cylinder liner to protrude from the top of the bore? Can this be filed flat with a finishing stone or did I just ruin my jug?
Last edited by Big Sack; Dec 31, 2023 at 07:39 AM. Reason: Font issue
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From: San Diego, CA
Based on your post, my gut says you probably damaged your cylinder. I can't say for certain or how bad, as I'm not sure what you have (cylinders & heads), what you exactly did, or why you did it...
I can say with confidence, it's time to take your cylinders & heads to an experienced Harley shop (that does machining) and get a professional opinion on your parts.... They can tell you if they are ruined or salvageable...
Good luck with your repair/mods...
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Joined: Sep 2017
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From: Ontario
Just prepping the cylinder face is all I mean. Using EDM stones (mold finishing stones) as opposed to anything aggressive. I hear a ton of talk on prepping head surface but nothing on prepping the face of the mating surface, ie cylinder face. The stone takes off very little material, maybe .0005"
I do a lot of machinig so am no stranger to the process. I just don't have a ton of knowledge on tolerance of these cylinders. So I'm concerned if the liner protrusion has been taken down, will this compromise gasket crush.
I do a lot of machinig so am no stranger to the process. I just don't have a ton of knowledge on tolerance of these cylinders. So I'm concerned if the liner protrusion has been taken down, will this compromise gasket crush.
Thread Starter
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Joined: Sep 2017
Posts: 50
Likes: 4
From: Ontario
Just prepping the cylinder face is all I mean. Using EDM stones (mold finishing stones) as opposed to anything aggressive. I hear a ton of talk on prepping head surface but nothing on prepping the face of the mating surface, ie cylinder face. The stone takes off very little material, maybe .0005"
I do a lot of machinig so am no stranger to the process. I just don't have a ton of knowledge on tolerance of these cylinders. So I'm concerned if the liner protrusion has been taken down, will this compromise gasket crush.
I do a lot of machinig so am no stranger to the process. I just don't have a ton of knowledge on tolerance of these cylinders. So I'm concerned if the liner protrusion has been taken down, will this compromise gasket crush.
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,024
Likes: 11,038
From: San Diego, CA
Just prepping the cylinder face is all I mean. Using EDM stones (mold finishing stones) as opposed to anything aggressive. I hear a ton of talk on prepping head surface but nothing on prepping the face of the mating surface, ie cylinder face. The stone takes off very little material, maybe .0005"
I do a lot of machinig so am no stranger to the process. I just don't have a ton of knowledge on tolerance of these cylinders. So I'm concerned if the liner protrusion has been taken down, will this compromise gasket crush.
I do a lot of machinig so am no stranger to the process. I just don't have a ton of knowledge on tolerance of these cylinders. So I'm concerned if the liner protrusion has been taken down, will this compromise gasket crush.
Thanks for the additional info... based on your original post, I had no idea of your skill set or knowledge....
As to your specific question, I am NOT a machinist, and have a shop do my "fitting" (cylinders, pistons, rings, heads) when I do a top end or big bore... So I can't give you an answer to your question...
There are some on here who will be able to give you some guidance... hopefully they'll see this thread before too long..
PS- I sent you a PM with some info
Last edited by hattitude; Dec 31, 2023 at 08:33 AM.
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