Deleted
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Registered: Apr 19, 2024 19:28:03 GMT -7
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Post by Deleted on Jun 24, 2019 11:35:44 GMT -7
I was happy to find out our bikes have cylinder sleeve liners, rather than the more common 'chemical' kind, like Nikasil, etc. I know there're pros and cons on both, but I feel much better with liners, especially steel, and the 'locking' kind (which have a flat side), to prevent rotation. A sleeve liner compromise I'm not familiar with is an alloy kind (without steel or iron), which I assume came to life as the 'best of both worlds', due to having similar expansion/cooling rates as aluminum, so curious which one our bikes have. I'm not sure which one is considered better overall, but if that's what we have, I'd like to do more research on them. I assume most other bikes use the chemical kind nowadays, since the overall engine costs with most of those coatings is reportedly cheaper than sleeves (not sure on that, so feel free to comment). But glad to see at least Yamaha still using the simpler, and tried-and-true sleeve option on high-performance engines. Can somebody here post what kind of liners our bikes have? The more details the better  . I read the service manual, but absolutely no information on that at all. I only know our engines have cylinder sleeves is because it says 'replace cylinder, piston, and rings as a set' several times, and the only exploded picture shows sleeves. But curious what kind and material. Thanks gang. JC |
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rcannon
New Member
Posts: 1
Registered: May 24, 2019 16:40:33 GMT -7
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Post by rcannon on Jun 29, 2019 13:36:21 GMT -7
They have not used cylinder sleeves , in high performance engines, for many years, and they did not start with this bike. If you look in the parts breakdown, there is one piston size. If they used a liner, they would offer the oversized pistons, and they dont. The biggest advantage ,to the old sleeves, was the fact that they could be bored a bit oversize to clean up a damaged cylinder.
I am not sure any bike in Yamahas line up uses a liner. Maybe the small, kids bikes?
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Post by hooli on Jul 1, 2019 12:42:38 GMT -7
They have not used cylinder sleeves , in high performance engines, for many years, and they did not start with this bike. Correct. The plating (typically something like Nikasil) is deposited directly on the bare aluminum bores. There are no cast iron liners like bikes old old.
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Deleted
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Registered: Apr 19, 2024 19:28:03 GMT -7
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Post by Deleted on Jul 2, 2019 11:28:56 GMT -7
I thought it was weird to still use liners, but why does it say numerous times in the service manual to repair the cylinder if damaged? And then install a new piston and rings. No way a dealer can 'repair' a cylinder with a coated liner. The graph in the service manual shows a liner, but the above one doesn't. The thing is neither one is an actual picture, but depictions. I'd like to see an actual FZ/MT-10 picture of a block from an owner with a blown engine to know for sure. Anybody??? |
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. I read the service manual, but absolutely no information on that at all. I only know our engines have cylinder sleeves is because it says 'replace cylinder, piston, and rings as a set' several times, and the only exploded picture shows sleeves. But curious what kind and material. Thanks gang.
