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General Chat (Vincent Related)
Oil priming. Pre oiling. First startup
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<blockquote data-quote="Cyborg" data-source="post: 130631" data-attributes="member: 3426"><p>There is usually a heathy debate about oiling or not oiling the rings during assembly. I’m operating with the understanding that the builders of race engines came up with that... obviously to speed up the bedding in. I oiled the Comet rings, party because for a street bike, I don’t see the value in installing them dry plus the rings were from Deves. The oil ring he supplies is made up of 4 dainty pieces, so I figured oil is desirable to help sneak them past the chamfer at the bottom of the liner. I don’t know if I would put rings in completely dry... it’s obviously a matter of preference, but I think they should at least have a light smear of on the top and bottom of the ring or wipe a small amount into the ring lands. If you watch YouTube videos of factories assembling engines, sometimes you see them lubricating the pistons and rings, sometimes you don’t. It may be that they do, but it’s just not captured in the video. The other thing is that if I prime the engine, crank, return line etc with oil and start the engine, I figure the cylinder wall will get covered in oil almost instantly. Anyway.... just another opinion.</p><p></p><p>Ps... I think one upside to the pressurized primer is that it feeds the cams with a steady flow of oil and forces all of the air out of the passageways, which may not occur with the oil can, although... presumably it would occur reasonably quickly on the rollers ( which I don’t have..yet). Whether or not this primer is any better than an oil can is certainly up for debate.... the only thing I know for sure is I had fun making it. So much fun, that I may make a version 2.0 out of a soda stream cartridge. Pressurized oil primers are readily available, but would rather spend the money on tooling and make my own. I actually made the first one for a lessor marque and then discovered the fitting had the same threads as the Vincent jet holder.</p></blockquote><p></p>
[QUOTE="Cyborg, post: 130631, member: 3426"] There is usually a heathy debate about oiling or not oiling the rings during assembly. I’m operating with the understanding that the builders of race engines came up with that... obviously to speed up the bedding in. I oiled the Comet rings, party because for a street bike, I don’t see the value in installing them dry plus the rings were from Deves. The oil ring he supplies is made up of 4 dainty pieces, so I figured oil is desirable to help sneak them past the chamfer at the bottom of the liner. I don’t know if I would put rings in completely dry... it’s obviously a matter of preference, but I think they should at least have a light smear of on the top and bottom of the ring or wipe a small amount into the ring lands. If you watch YouTube videos of factories assembling engines, sometimes you see them lubricating the pistons and rings, sometimes you don’t. It may be that they do, but it’s just not captured in the video. The other thing is that if I prime the engine, crank, return line etc with oil and start the engine, I figure the cylinder wall will get covered in oil almost instantly. Anyway.... just another opinion. Ps... I think one upside to the pressurized primer is that it feeds the cams with a steady flow of oil and forces all of the air out of the passageways, which may not occur with the oil can, although... presumably it would occur reasonably quickly on the rollers ( which I don’t have..yet). Whether or not this primer is any better than an oil can is certainly up for debate.... the only thing I know for sure is I had fun making it. So much fun, that I may make a version 2.0 out of a soda stream cartridge. Pressurized oil primers are readily available, but would rather spend the money on tooling and make my own. I actually made the first one for a lessor marque and then discovered the fitting had the same threads as the Vincent jet holder. [/QUOTE]
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Oil priming. Pre oiling. First startup
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