M8 problems
Club Member
Joined: Oct 2017
Posts: 21
Likes: 4
From: CRESTVIEW, FLORIDA
Well we now know that certain level is at least 1psi... Conspiracy theory here.. Ever think the MoCo changed the readout to just OK or CHECK OIL because they knew there was a problem? We would all probably be freaking out if we were able to see actual pressure readings riding down the road.. BUT! they couldn't delay the release of the M8 after all the testing and hype... so now they are getting to fix it under warranty as WE ARE THE TEST SUBJECTS... I haven't gotten a consistent oil level reading on my bike in 3 weeks... 7500 miles starting to worry..
Seasoned HDF Member
Joined: Apr 2015
Posts: 6,863
Likes: 3,727
From: St. Charles, MO
Well we now know that certain level is at least 1psi... Conspiracy theory here.. Ever think the MoCo changed the readout to just OK or CHECK OIL because they knew there was a problem? We would all probably be freaking out if we were able to see actual pressure readings riding down the road.. BUT! they couldn't delay the release of the M8 after all the testing and hype... so now they are getting to fix it under warranty as WE ARE THE TEST SUBJECTS... I haven't gotten a consistent oil level reading on my bike in 3 weeks... 7500 miles starting to worry..
Cruiser
Joined: Sep 2017
Posts: 119
Likes: 21
From: central illinois
Well we now know that certain level is at least 1psi... Conspiracy theory here.. Ever think the MoCo changed the readout to just OK or CHECK OIL because they knew there was a problem? We would all probably be freaking out if we were able to see actual pressure readings riding down the road.. BUT! they couldn't delay the release of the M8 after all the testing and hype... so now they are getting to fix it under warranty as WE ARE THE TEST SUBJECTS... I haven't gotten a consistent oil level reading on my bike in 3 weeks... 7500 miles starting to worry..
Cruiser
Joined: Sep 2016
Posts: 153
Likes: 16
From: Chicago Burbs
Rocker shaft
Anyone with cam upgrades pulling the rocker shaft mounting bolts out of the head on the valve spring side? It’s happening...
The pic on the bench is the way it was in the Twin Cam. They sat in a support plate.
The pic on the bench is the way it was in the Twin Cam. They sat in a support plate.
Last edited by Breakout110; Oct 17, 2017 at 11:48 AM.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,925
Likes: 8,027
From: poway
As I understand it they are not stripping out but the boss that holds the shaft is breaking off. It occurs during torquing and is caused by the rocker arm wedging itself as it's being torqued down.. This was reported by Steve Cole.
Tourer
Joined: May 2006
Posts: 354
Likes: 13
From: pennsylvania
new inexperienced workers!!!
some issues may be from replacing the more costly long time EXPERIENCED workers with the new cheaper paid ones that are still learning, if so its prolly costing HD more on warranty repairs while inhibiting sales!!! so much for the bean counters wisdom!!!!
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,925
Likes: 8,027
From: poway
Could also be that a bunch of the older ones retired because they were too lazy to learn anything new. Had a fat pension and wanted to get out..
Elite HDF Member
Joined: Jun 2007
Posts: 4,867
Likes: 268
From: People's Republic of Boulder Colorado
Hey, what did ya expect? That Sporty has the best motor the MoCo ever made - the '80's-tech EVO!
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Elite HDF Member
Joined: Jun 2007
Posts: 4,867
Likes: 268
From: People's Republic of Boulder Colorado
Considering most of the problems are relating to oil sumpin and pumps goin south, I’d have to say seals are a main issue
Oil migrating from trans to primary is also seal related. But add to that it is also a bad design.
Oil pumps have been coming loose may not be a s al issue, but they’re failing. Some don’t seal
Lube related issues will lead to other aspects and of engine failure.
So sealing it properly will most likely solve most, if not all of these common problem.
But assembly is priority number one. And there may be issues there IMO
Oil migrating from trans to primary is also seal related. But add to that it is also a bad design.
Oil pumps have been coming loose may not be a s al issue, but they’re failing. Some don’t seal
Lube related issues will lead to other aspects and of engine failure.
So sealing it properly will most likely solve most, if not all of these common problem.
But assembly is priority number one. And there may be issues there IMO
Now those "acceptable" cranks are trashing the oil pumps.
The MoCo's answer will probably be to make the pumps "looser" to compensate for their poorly-designed and assembled crankshafts. They could probably come up with a spherical-design of some sort for the pump that would let the end of the crank wobble all over the place if they really put their minds to it.
OR, they could just design a crankshaft that runs and stays true to begin with (Sarcasm, of course. They'd NEVER consider doing anything like that!).
Last edited by jpooch00; Oct 18, 2017 at 07:41 AM.
Stage III
Joined: Oct 2017
Posts: 3
Likes: 1
From: GA
Motor issue
First off not a motor guy... Have 1800mi on my streetglide and noticed a fairly loud knock while riding. Took it in to have the dealer look at at and haven't seen the bike since. Going on 5 wks and the dealer claims the motor had loose bolts internally causing failure. Harley corp has been involved with the process of trail and error having the dealer test, record and report. The decision is now to replace cylinders,pistons, oil pan and other parts. Essentially a new motor with out putting in new moto. Super frustrating process! New to the forum and lots to read but has anyone else reported such issues?