M8 problems
#42
#46
I'll wait and see before I become more critical than I am of this "new" engine. There seems to be a few issues with oil pumps (could be crank run out related) and maybe some leaky piston rings and/or valve guide seals as well. In any event, that's more trouble than I'm willing to spend money to have. Understandably, the owners of 2017 machines are defensive about their decision to buy and don't want to think there could be serious issues with their new machine or that they bought trouble Harley should have sorted out. Another issue I think will eventually come to call is the "adjusted for life" intake and exhaust valves working off the same rocker arm. With a little wear, it's quite possible the exhaust valve clearances can differ between the two and that could result in a burnt exhaust valve seat for one of them. I for one don't feel it's "admirable" for a company to R&R a defective engine they should have done their engineering due diligence on. It isn't like they don't have experience with redesigns gone wrong.
For the sake of everyone who decided to buy first model year Harleys I hope it all works out for you. I hate to see anybody sink that kind of money in something that's problematic. I can tell you this; ANY vehicle I bought that needed an engine replaced in the first thousand miles would be returned for a full refund and the deal would be undone. That's not "what I'd like to see happen", that's what would happen.
Last edited by Campy Roadie; 09-15-2016 at 11:58 AM.
#48
My thought track ............ Otoh, after having had two of the first run Twin Cams grenade under me while on vacation, I will never again purchase a first m y anything from the mo co. I am on the road 6 to 8 weeks out of the year and I do not need the issues .............
#49
I know of one; I think it's titled "It doesn't look good for my SG". The dealer is R&Ring his engine with a new one. User LP down in South Carolina has a friend that had his 2017 M8 engine replaced but he didn't say why.
I'll wait and see before I become more critical than I am of this "new" engine. There seems to be a few issues with oil pumps (could be crank run out related) and maybe some leaky piston rings and/or valve guide seals as well. In any event, that's more trouble than I'm willing to spend money to have. Understandably, the owners of 2017 machines are defensive about their decision to buy and don't want to think there could be serious issues with their new machine or that they bought trouble Harley should have sorted out. Another issue I think will eventually come to call is the "adjusted for life" intake and exhaust valves working off the same rocker arm. With a little wear, it's quite possible the exhaust valve clearances can differ between the two and that could result in a burnt exhaust valve seat for one of them. I for one don't feel it's "admirable" for a company to R&R a defective engine they should have done their engineering due diligence on. It isn't like they don't have experience with redesigns gone wrong.
For the sake of everyone who decided to buy first model year Harleys I hope it all works out for you. I hate to see anybody sink that kind of money in something that's problematic. I can tell you this; ANY vehicle I bought that needed an engine replaced in the first thousand miles would be returned for a full refund and the deal would be undone. That's not "what I'd like to see happen", that's what would happen.
I'll wait and see before I become more critical than I am of this "new" engine. There seems to be a few issues with oil pumps (could be crank run out related) and maybe some leaky piston rings and/or valve guide seals as well. In any event, that's more trouble than I'm willing to spend money to have. Understandably, the owners of 2017 machines are defensive about their decision to buy and don't want to think there could be serious issues with their new machine or that they bought trouble Harley should have sorted out. Another issue I think will eventually come to call is the "adjusted for life" intake and exhaust valves working off the same rocker arm. With a little wear, it's quite possible the exhaust valve clearances can differ between the two and that could result in a burnt exhaust valve seat for one of them. I for one don't feel it's "admirable" for a company to R&R a defective engine they should have done their engineering due diligence on. It isn't like they don't have experience with redesigns gone wrong.
For the sake of everyone who decided to buy first model year Harleys I hope it all works out for you. I hate to see anybody sink that kind of money in something that's problematic. I can tell you this; ANY vehicle I bought that needed an engine replaced in the first thousand miles would be returned for a full refund and the deal would be undone. That's not "what I'd like to see happen", that's what would happen.
The following 3 users liked this post by Ashnic:
#50
My thought track ............ Otoh, after having had two of the first run Twin Cams grenade under me while on vacation, I will never again purchase a first m y anything from the mo co. I am on the road 6 to 8 weeks out of the year and I do not need the issues .............