M8 trans fluid leaking in primary

[Bike31]

We needs pics of Rev A and B for that part. It'd also be good to see the assembled position layup of the clutch and release rods and trans shaft end where allegedly the oil is being transferred.

[FSG]

If I had an M8 is be letting HD figure out out.  Last thing I would want to do is modify something and Give them a reason to void the warranty.

Well maybe just put an extra gasket or two on it ould suffice, but if I had one it'd be for riding not sitting in the garage waiting for HD to figure out a fix.

[1FSTRK]

We needs pics of Rev A and B for that part. It'd also be good to see the assembled position layup of the clutch and release rods and trans shaft end where allegedly the oil is being transferred.

Nothing alleged about it, it is definately being tranfered and definately through the trans shaft the only question is why.

[harleytuner]

If I had an M8 is be letting HD figure out out.  Last thing I would want to do is modify something and Give them a reason to void the warranty.

Well maybe just put an extra gasket or two on it ould suffice, but if I had one it'd be for riding not sitting in the garage waiting for HD to figure out a fix.

I guess that's why i don't buy the first year of major changes.  A gasket experiment is one thing. If possibly take an extra derby cover and drill a vent hole and run a tube in it as it wouldn't be permanent.  But I wouldn't do anything that would give HD an excuse.

[1FSTRK]

If I had an M8 is be letting HD figure out out.  Last thing I would want to do is modify something and Give them a reason to void the warranty.

Well maybe just put an extra gasket or two on it ould suffice, but if I had one it'd be for riding not sitting in the garage waiting for HD to figure out a fix.

I guess that's why i don't buy the first year of major changes.  A gasket experiment is one thing. If possibly take an extra derby cover and drill a vent hole and run a tube in it as it wouldn't be permanent.  But I wouldn't do anything that would give HD an excuse.

The last thing I would put any faith in is the factory warranty but if you are experimenting at this level and the factory beats you to a fix you can always replace the altered pieces with oem unaltered parts and your warranty will be fine.

[Bike31]

I'm aware of all the chatter re the clutch transfer above 4k rpm. Maybe someone with access to the parts can actually disassemble the TC and M8 trans clutch end and have a look at what's changed besides component numbers.

The assist/slip clutch units are not a new item and were used on some 2016's with the "A" side cover (mainly 110's). They are an option for 2014's and later with hydraulic clutches.

[hd06]

 Just a though if a right hand thread was cut on the shaft if that would push the oil back in the trans.   

[rbabos]

Just a though if a right hand thread was cut on the shaft if that would push the oil back in the trans.   

Careful now, then the posts will change to primary transferring to trans. 
Ron

[sneakypete]

I had the opportunity to talk to one of the guys at my local HD shop yesterday and I asked him if he had heard anything about this situation he said he hadn't yet. I told him he probably would at some point.  On the other hand if he did know about it he wasn't saying...

[rbabos]

I had the opportunity to talk to one of the guys at my local HD shop yesterday and I asked him if he had heard anything about this situation he said he hadn't yet. I told him he probably would at some point.  On the other hand if he did know about it he wasn't saying...

To this day they probably wouldn't admit to compensator issues from 07-2013. They are sworn to secrecy.
Ron

[1FSTRK]

I had the opportunity to talk to one of the guys at my local HD shop yesterday and I asked him if he had heard anything about this situation he said he hadn't yet. I told him he probably would at some point.  On the other hand if he did know about it he wasn't saying...

To this day they probably wouldn't admit to compensator issues from 07-2013. They are sworn to secrecy.
Ron

What compensator issues?



 

[rbabos]

I had the opportunity to talk to one of the guys at my local HD shop yesterday and I asked him if he had heard anything about this situation he said he hadn't yet. I told him he probably would at some point.  On the other hand if he did know about it he wasn't saying...

To this day they probably wouldn't admit to compensator issues from 07-2013. They are sworn to secrecy.
Ron

What compensator issues?



 

Exactly.
Ron

[sneakypete]

Truth be told I had a suspicious feeling when I observed the "LOOK" on his face after asking my question...

[PoorUB]

I had the opportunity to talk to one of the guys at my local HD shop yesterday and I asked him if he had heard anything about this situation he said he hadn't yet. I told him he probably would at some point.  On the other hand if he did know about it he wasn't saying...

To this day they probably wouldn't admit to compensator issues from 07-2013. They are sworn to secrecy.
Ron

I have had that thought too. Ask a salesman about any well know issue and you will get, "I have never heard of that!"

[Rockout Rocker Products]

I get the same from the local dealer when asked about any problems. Truth is, I'd expect the same at a Ford or Toyota dealer.

[FSG]

you might get the truth from someone out the back at the coal face but never from the sales floor or front office

[Durwood]

I get the same from the local dealer when asked about any problems. Truth is, I'd expect the same at a Ford or Toyota dealer.

That's the truth! Ford with their junk 06-10, 5.4 truck engines and the 97 up Camry 2.2 4 cylinder.

[HV]

   If yall knew about all the issues we know of out back......well.....

[FSG]

As mentioned earlier the M8 uses the 35260-06B  BEARING HOUSING,

it also uses a new (for 2017) bearing 11000010 , item #23 in the top half of the below pic, while the 8970A bearing has been around since the 2012 models.

The top half of the below pic is the HD SIP Site and is correct.

The bottom half of the below pic is from an online HD Provider that is using the ARI PartStream System and is incorrect as it has items #10 and #23 transposed.

[FSG]

[Bike31]

Thanks FSG for the parts and pics. Good catch on the bearing transposition in the ARI fiche....which is what I've mostly been using.

One thing that has been discussed by SC on the HD Forum is how does oll get into the area next to the clutch pushrod and trans input shaft in sufficient quantity to get transferred at high rpms. It was suggested maybe the adjacent bearing (11000010) was acting as a pump of sorts.

It appears from the pics to be shielded more than in the -06A Housing or the 8907A bearing to the right. One suggestion from SC was to install a shielded bearing to replace 11000010. So now I wonder if the bearing SC wanted to shield in your pics was replaced as a running change, or is it the same as initial production for all 2017 M8 models? It could still be the source of the excess oil however.

Edit: It may also be that the two bearings were reversed at times during production? (speculation).

[Admiral Akbar]

It was suggested maybe the adjacent bearing (11000010) was acting as a pump of sorts.

May have not been clear.. This is not correct. It was suggested that first gear with backlash gear was somehow creating a pump that was pushing oil through the mainshaft bearing. Not the layshaft.

[Bike31]

There have been a few suggestions Max as to the source of excess oil. SC in Post #422 (and others) suggests the input shaft bearing (whatever P/N is there) acts as an oil pump. You later mentioned the new for 2017 scissor 1st gear as a potential source and SC agreed it may be possible in Post #445.

Guess it depends on who's posting and where it's located in the Thread as to what's the possible source?

All in all it's an interesting discussion. Still someone should take their M8 apart, have a look, and take some pics of what's actually there for bearings and what type they are.

[FSG]

[Bike31]

Thanks FSG for a pic of the 8970A bearing. Any pics of the new for 2017 11000010 bearing available?