M8 Crank run out.

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#21

01-16-2019, 02:17 PM

Campy Roadie

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Quote:

Originally Posted by Mark@ Baker Drivetrain

In my opinion, the ridiculous crank runout is what's causing the compensator failures. How can a company allow .012 runout? Nothing will survive in that environment for long.

And that's on the cam side, lord knows what it is on the sprocket shaft side. The shift to left side roller bearings was half of the start, the other half being cast cranks.

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#22

01-16-2019, 02:19 PM

Campy Roadie

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Quote:

Originally Posted by KrustyKush

And yet, there are quite a few M8s rolling with high miles and no compensator or other problems.

How do we explain this?

Counter balancer.

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#23

01-16-2019, 03:00 PM

painey

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Quote:

Originally Posted by KrustyKush

I agree about general mediocrity.

But, there are literally hundreds of thousands of these engines motoring over the highways of the world. Very, very few of them are having failures of any kind.

This suggests to me that spot measurements of this and that are relatively unimportant. Now, if we had a failure rate around 99% then we could be talking about something. I've personally seen a tendency in gear heads to get obsessed about some little particular that really is of no practical consequence. The machine is designed to run well in specific conditions, to get us there and back safely. As long as it does this, where is the problem?

I had a 2018 RGS (107 M8), @3000 miles it developed transmission transfer problems and again at 8500 miles at this stage it also developed excessive engine oil consumption. I traded for a 2019 RGS (114 M8), at 4400 miles this too has developed transmission transfer issues and been fitted with the HD fix (haha lets see how that works out).

By my reckoning I have had a 100% failure rate with M8's regarding transmission transfer, if you think this is acceptable then not gonna waste my time giving real examples!

I am lucky, my dealership is looking after me, the mothership is a total waste of space, they give the reason on their latest bulletins that the bikes are not being ridden correctly....BS I say!

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#24

01-16-2019, 04:17 PM

hellonewman

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Quote:

Originally Posted by painey

they give the reason on their latest bulletins that the bikes are not being ridden correctly....BS I say!

You must be exceeding 3000rpm, shame on you!

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#25

01-16-2019, 05:29 PM

purpledeuce

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Seems like the moco solution to the problems is tell people not to ride, but fear not everyone! Soon you’ll have the option of buying the electric Harley and all the transfer and sumping problems will be gone. Just don’t be asking the moco to fix the numerous mistakes that will quickly be discovered

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