There is a rumor circulating on the internet...

[DK Custom Products]

There is a rumor circulating around the net that the M8 engine is venting the blow-by into the transmission.

Before it gets started here.....


The 2017 M8 engine does Not route the blow-by into the transmission.


Here are a couple of photo's of the tiny stock filter element with the breathers venting the blow-by into the filter element, just like HD has been doing for years.

You can see the hoses coming off the breather bolts to a T connector, then the hose off the T goes into the back of the filter.

The following pics, showing what happens to a Twin Cam...no reason to expect that the M8 piston tops will have any different results.

Kevin

 

[hogcowboy]

I supposed the venting issue all by itself is due to the EPA Nazi's. It must be their prime objective to ruin all internal combustion engines.

 

[Taylor]

So what is the best or most used way of venting to the outside ?

 

[scuba1954]

You asked which way is best? Best for the bike is not vent into the air cleaner you see in those photos what happens. If you look at the older bikes you will find vent tubes that extend beneath the bike to vent the gasses to the atmosphere. Just my two cents.

 

[Taylor]

Agreed,my shovel vents to the outside.At this point I have already re-routed the hose to under-neath the trike. Couldn't really make up my mind were I wanted it to go.May still go back and re-route.

 

[DK Custom Products]

So what is the best or most used way of venting to the outside ?

You can build your own, or take a look at the many options we have for External Breather Systems at this LINK.

They will all function the same, just depends on what look you like the best.

I've run the Premium Discrete and the Premium Catch-Can on my '14.


Kevin