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what is the actual mechanical solution to this problem?
I did read the service bulletin, but looking for a simple synopsis from someone experienced. Thanks.
From what I read in the extended service bulletin, it amounts to not riding long periods of time at high rpm's, (interstate speed) and check your oil frequently.
It reminds me of the joke about the guy who goes to the doctor and the doctor asks why is he here? He responds that when he turns his head to the far left it is very painful and the doctor responds, well don't turn your head to the far left and you should be ok. So with that logic, if you don't ride at high speeds on the interstate and check your oil level frequently it won't be a problem. I don't think that is a solution that today's customer will think is appropriate.
From what I read in the extended service bulletin, it amounts to not riding long periods of time at high rpm's, (interstate speed) and check your oil frequently.
Here is the service bulletin link that a previous poster supplied. https://www.hdforums.com/forum/attac...n-11_11_17.pdf (see bottom of page -2- through page -3-, later in the bulletin it advises the changeout of the oil pump if sumping is duplicated by dealer)
It tells the dealer to verify the problem exists, sumping, its causes and if it is able to be duplicated, then replace the oil pump. Now with a new oil pump do the same operating conditions result in the same problem? I don't know but maybe someone on the forum who has had their's replaced by this service bulletin can tell us.
Here is the service bulletin link that a previous poster supplied. https://www.hdforums.com/forum/attac...n-11_11_17.pdf (see bottom of page -2- through page -3-, later in the bulletin it advises the changeout of the oil pump if sumping is duplicated by dealer)
It tells the dealer to verify the problem exists, sumping, its causes and if it is able to be duplicated, then replace the oil pump. Now with a new oil pump do the same operating conditions result in the same problem? I don't know but maybe someone on the forum who has had their's replaced by this service bulletin can tell us.
on a brief scan I recall the oil pump tidbit....but your point is true, does it fix the actual issue?
Kinda odd....the whole cam-tensioner problem in the TC88s early on....the upgraded cam plate assembly came w/ the 'new oil pump' everyone raved about. Is this the same oil pump that is 'failing' now and causing this issue? lol.....
Boy, you'd think HD putting the R&D $$ into a new engine like the M8 this stuff wouldn't be happening (?).
on a brief scan I recall the oil pump tidbit....but your point is true, does it fix the actual issue?
Kinda odd....the whole cam-tensioner problem in the TC88s early on....the upgraded cam plate assembly came w/ the 'new oil pump' everyone raved about. Is this the same oil pump that is 'failing' now and causing this issue? lol.....
Boy, you'd think HD putting the R&D $$ into a new engine like the M8 this stuff wouldn't be happening (?).
Thanks.
Nothing wrong with the original TC oil pump.. The M8 pump is a slightly different design, still gerotor. IMO the problem isn't the oil pump itself.
I had an EVO bagger without any problems. After selling it I was without a Harley for several years and during that time I was riding BMW bikes, (that have their own issues) and then came back to HD with a TC88. I was not aware of the tensioner problem then because I was not following the forums and did not do adequate research. Luckily the previous owner of my bike had the carb version so that is not an issue but the tensioner is. Until reading this thread I had been thinking of a new bagger because at my age I was really enjoying the ergonomics and laid back style of riding my Glide affords, compared to the Beemers. Now I will stick with what I have and wish I had my old EVO bagger. With evolution in nature we expect improvement and better adaptation/suitability to the environment, a concept lost on the MOCO.
I suspect that HD came out with this pump to simply give the masses what they wanted, they already had what they needed. The biggest issue was that they put oil pressure gauges on the bikes.. HDs really don't need pressure, they need flow..
I suspect that HD came out with this pump to simply give the masses what they wanted, they already had what they needed. The biggest issue was that they put oil pressure gauges on the bikes.. HDs really don't need pressure, they need flow..
Actually they eliminated oil pressure readouts or gauges starting with the 2017 bikes.
From what I read in the extended service bulletin, it amounts to not riding long periods of time at high rpm's, (interstate speed) and check your oil frequently.
what is the definition of "High Rpms" and "for long periods of time "?
I mean I can get up to 80 easily in 3rd gear at about 5000 rpms which is below redline and rev limiter but that wouldn't be smart to set the cruise control at that point..LOL
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