Differences

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--- tecnica:motori:honda_3d_print_spare_parts [2024/11/29 16:56] – [16965MM5770 Lever Fuel Cock] niccolo
+++ tecnica:motori:honda_3d_print_spare_parts [2024/12/02 14:42] (current) – [16965MM5770 modified to fit a 5 mm pin] niccolo
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 ====== 3D-printng Honda motorcycle spare parts ======
+**Creating 3D models of discontinued parts**
 I own an **Honda NTV650 Revere**, year 1991, and I still use it regularly after 33 years and **254.000 km**. The bike has been kept in perfect working order for all these years thanks to the availability of original spare parts, a true Honda excellence.
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 Honda does not produce the **fuel cock lever** (16965MM5770) any more, nor the **fuel petcock** (16950MS9005). If you need to replace the petcock you can find several non-original spare parts, but every item I found has a noticeable difference: the square pin where the lever is mounted is shorter than the original: 5 mm instead of the original **13 mm**:
-{{.:3dprint:ntv650-original-petcock-long-pin.jpg?direct&400|NTV 650 original petcock, 13 mm long pin}}
+{{.:3dprint:ntv650-original-petcock-long-pin.jpg?direct&360|NTV 650 original petcock: 13 mm long pin}}
+{{.:3dprint:ntv650-non-original-petcock-short-pin.jpg?209|Non original petcock: 5 mm long pin}}
-The original lever does not fit the non-original petcock.
-So I drew in CAD a modified lever, which will stay in the correct position once mounted on a short-pin petcock. Here you can find two 3D projects: one is like the original part, the other does fit a 5 mm pin petcock.
+The original lever does not fit the non-original petcock, because it interferes with the metal body. So **I drew in CAD a modified lever**, which will stay in the correct position once mounted on a short-pin petcock. Here you can find two 3D projects: one is like the original part, the other does fit a 5 mm pin petcock.
 :!: **WARNING**: The original lever have a **metal inner core**; my project features a **7.0 mm inner hole**, so you have to fit a piece of metal tube in it, see the picture:
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 ==== 16965MM5770 modified to fit a 5 mm pin ====
-This is a slightly modified project, designed to fit petcocks with a **5 mm long pin**. Generally these non original petcocks have the pin smaller: a square section of **7.60 x 7.60 mm** instead of 7.90 x 7.90 mm.
+This is a slightly modified project, designed to fit petcocks with a **5 mm long pin**. Here you will need a metal tube (**7.0 x 5.4 mm** diameter, **13.0 mm** long). Generally these non original petcocks have the pin smaller: a square section of **7.60 x 7.60 mm** instead of 7.90 x 7.90 mm.
 {{.:3dprint:16965mm5770-short-pin-2.png?direct&200|}}