Milwaukee 8 Big bore kit disassembly & installation

[Jamie Long]

[Jamie  what's the deal with the Wood Performance M8 directional lifters?

The lifters are designed so the oil hole aligns with the oil passage.

[rbabos]

I think FSG was meaning and what I was wondering too is how they accomplish the direction with the M8 anti rotation device or do they supply a one flat only retainer to replace the OEM part? As for lining up the hole, unless the galleys have changed from what the TC arrangement was, technically there is no need for feed hole alignment.
Ron

[Jamie Long]

I think FSG was meaning and what I was wondering too is how they accomplish the direction with the M8 anti rotation device or do they supply a one flat only retainer to replace the OEM part? As for lining up the hole, unless the galleys have changed from what the TC arrangement was, technically there is no need for feed hole alignment.
Ron

The Wood M8 lifters have 2 flats on them.

[FSG]

The Wood M8 lifters have 2 flats on them.

In that case they are not directional.

[1FSTRK]

The Wood M8 lifters have 2 flats on them.

In that case they are not directional.

They say they are directional, a simple instruction sheet telling you which way the oil hole and logo need to face would cover correct installation.

[rbabos]

The Wood M8 lifters have 2 flats on them.

In that case they are not directional.

They say they are directional, a simple instruction sheet telling you which way the oil hole and logo need to face would cover correct installation.

In that case the M8 lifters would need to be directional also. Not sure that is the case, and if not, claiming directional maybe nothing more then hype. TC's were full circle oiling around the lifter and I suspect the M8 is the same. That would need to be verified to validate the need for a specific feed hole orientation and a specific install of the lifter.
Ron

[1FSTRK]

The Wood M8 lifters have 2 flats on them.

In that case they are not directional.

They say they are directional, a simple instruction sheet telling you which way the oil hole and logo need to face would cover correct installation.

In that case the M8 lifters would need to be directional also. Not sure that is the case, and if not, claiming directional maybe nothing more then hype. TC's were full circle oiling around the lifter and I suspect the M8 is the same. That would need to be verified to validate the need for a specific feed hole orientation and a specific install of the lifter.
Ron

Not sure where this is all going.
One flat or two does not make a lifter directional.
Because HD went from guide pins to the Automotive style guides on the lifters simply adding the second flat to the directional twin cam lifter body that he already makes then printing a logo on it for identification would seem a simple fix. Also the mention of aligning the oil feed hole in the lifter with the feed hole in the lifter bore could be an additional way of assuring proper direction when installing instead of a mandate the holes need to be aligned for proper oiling to take place.

[Ohio HD]

My take on the meaning of directional is, they're intended to be installed in a specific orientation, not that they can't be installed differently.


di·rec·tion·al
diˈrekSH(ə)n(ə)l,dīˈrekSH(ə)n(ə)l/
adjective
adjective: directional

   
• 1. relating to or indicating the direction in which someone or something is situated, moving, or developing."directional signs wherever two paths joined"
• 2. having a particular direction of motion, progression, or orientation."coiling the wire permits directional flow of the magnetic flux"

[Jamie Long]

They say they are directional, a simple instruction sheet telling you which way the oil hole and logo need to face would cover correct installation.

^this^

[les]

Jamie, just want you to know that I'm impatiently checking this thread frequently.  Very interesting.  So, get your butt out there in the garage and send up more postings!

Oops...guess I should have used that foul language after your final posting.  Ignore what I wrote above.   

[FSG]

TC's were full circle oiling around the lifter and I suspect the M8 is the same.

M8s use the crappy -99C Lifter which are full circle oiling around the lifter.

So where do the exhaust lifter oil holes face on an M8?

[trex]

Some images with the rocker covers removed:

Never saw this mentioned before, the rocker shafts have a bolt through them now, no need for the Rocker Lockers on the M8

[04efidynasuperglide]

Jamie, I see marking of rocker shaft boss on one of heads,,  what to make of ?

[harley_cruiser]

Some images with the rocker covers removed:

Never saw this mentioned before, the rocker shafts have a bolt through them now, no need for the Rocker Lockers on the M8

Nope,
subscribed.

[FSG]

Some images with the rocker covers removed:

Never saw this mentioned before, the rocker shafts have a bolt through them now, no need for the Rocker Lockers on the M8

Oh I've seen it before, so has at least one of the vendors providing lockers for the shafts (I forget which one) as I remember they claimed HD had made the change due to becoming aware of the shaft problem with the exposure of the locking product.

[harley_cruiser]

Some images with the rocker covers removed:

Never saw this mentioned before, the rocker shafts have a bolt through them now, no need for the Rocker Lockers on the M8

Oh I've seen it before, so has at least one of the vendors providing lockers for the shafts (I forget which one) as I remember they claimed HD had made the change due to becoming aware of the shaft problem with the exposure of the locking product.

I don't believe it was one of the venders but a poster who said this. I really doubt HD designed a new motor just to...............
Sorry this is getting off topic.

[FSG]

I don't believe it was one of the venders but a poster who said this. I really doubt HD designed a new motor just to...............
Sorry this is getting off topic.

I don't believe it was one of the venders but a poster who said this.  so you've seen it or are aware if it?

It was a vendor and made the change is a little different to designed a new motor just to..

[harley_cruiser]

I don't believe it was one of the venders but a poster who said this. I really doubt HD designed a new motor just to...............
Sorry this is getting off topic.

I don't believe it was one of the venders but a poster who said this.  so you've seen it or are aware if it?

It was a vendor and made the change is a little different to designed a new motor just to..

If it was a vendor, then no I have not seen that. It was not me.   

[1FSTRK]

Maybe this thread?
http://www.harleytechtalk.com/htt/index.php?topic=93224.msg1080008#msg1080008

[Rockout Rocker Products]

Maybe this thread?
http://www.harleytechtalk.com/htt/index.php?topic=93224.msg1080008#msg1080008

Yep, it was me that made the comment.... the facts speak for themselves.

I make no claims other than what was stated. I'll add that during the design/manufacturing of the M8 the MOCO had my Rockout inserts in their possession. Again, not making any claims, just stating facts.

[harley_cruiser]

If HD wanted to lock the shaft all they had to do was make the bolt fit the hole.
More likely for the change was so the rocker arm could be serviced/installed easier, especially with the two valves per rocker arm. I haven't studied the head, so don't know if the rocker arm bolts to the head or if there is a bottom plate that it bolts to. Either way it would be a pain to torque the plate or head down with the pre-load of the two valves/lifters, with the shaft encased in the tower, much easier just to pull the rocker arm down independently with bolt through it.
And we all know the MOCO is all about assembly line speed.
Sorry Jamie for the off topic, enjoying your tear down.

[FSG]

I'll add that during the design/manufacturing of the M8 the MOCO had my Rockout inserts in their possession.

And how is that known?

[Rockout Rocker Products]

I'll add that during the design/manufacturing of the M8 the MOCO had my Rockout inserts in their possession.

And how is that known?

I would not make a statement concerning the MOCO on a public forum that I could not back up with proof.

[Rockout Rocker Products]

[attach=0]

[harley_cruiser]

 I took a closer look, The towers are cast into the head, if they had left the caps on like the printed out prototype, you would be torquing down the heads as well as pre-loading the lifters, and one of the head bolts is under the rocker arm. If you wanted to do any work on the cam you would need to pull the head, which would be practical impossible since the bolt is under the rocker arm.
I guess you could cut the push rods, ect.
This is why the changed the design so that the rocker arm is bolted in and does not have a cap, so the rocker arm can be removed.
Not because of rhetoric on the internet.