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General Minitrail Talk
Tech Area
HK0 head and cylinder options.
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<blockquote data-quote="Tripod" data-source="post: 185613" data-attributes="member: 8288"><p>I went out to the garage and got some measurements.</p><p></p><p>Piston 1.8480</p><p></p><p>Cylinder:</p><p>1.8517</p><p>1.8520</p><p></p><p>I measured the cylinder with both measurements perpendicular about 10mm deep. Doesn't seem to be out of spec.</p><p></p><p>I did dig out an old z50 engine I bought years ago. Has a busted motor mount so its just been sitting. Early k1 case and as usual I dont throw out old parts. Still seems to have some good internals. The motor has what seemed to be a 70 head on it. I just tore the top end off.</p><p></p><p>As far as the pics go, I'd like to know if this is a Chinese head or Honda head. Has E1 stamped on it. Will need to be reuilt. I poured some mineral spirits in and the exhaust valve leaked.</p><p></p><p>The picture of the piston is at the top of its stroke. Not sure how well a 49cc cylinder and a 70cc head would run but oh well i didn't buid it.</p><p></p><p>Pictures explained:</p><p></p><p>LEFT COLUMN</p><p>HK0 cylinder</p><p>donor case</p><p>donor at top of stroke</p><p>donor head right cam bearing</p><p></p><p>RIGHT COLUMN</p><p>donor head</p><p>donor head dome</p><p>donor head left side cam bearing</p><p>Hk0 head / donor head</p></blockquote><p></p>
[QUOTE="Tripod, post: 185613, member: 8288"] I went out to the garage and got some measurements. Piston 1.8480 Cylinder: 1.8517 1.8520 I measured the cylinder with both measurements perpendicular about 10mm deep. Doesn't seem to be out of spec. I did dig out an old z50 engine I bought years ago. Has a busted motor mount so its just been sitting. Early k1 case and as usual I dont throw out old parts. Still seems to have some good internals. The motor has what seemed to be a 70 head on it. I just tore the top end off. As far as the pics go, I'd like to know if this is a Chinese head or Honda head. Has E1 stamped on it. Will need to be reuilt. I poured some mineral spirits in and the exhaust valve leaked. The picture of the piston is at the top of its stroke. Not sure how well a 49cc cylinder and a 70cc head would run but oh well i didn't buid it. Pictures explained: LEFT COLUMN HK0 cylinder donor case donor at top of stroke donor head right cam bearing RIGHT COLUMN donor head donor head dome donor head left side cam bearing Hk0 head / donor head [/QUOTE]
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HK0 head and cylinder options.
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