Venting a Moser

[eville]

What are you guys using to vent your Moser? Their instructions say to use a tube over to the frame rail which seems kinda cheesy to me.



Thoughts, suggestions and pictures appreaciated.

[HarleyR]

-6AN with a K&N Style breather is nice.. Just mak sure it wont kink during suspension travel...

[parsonsj]

6AN to vapor/liquid separator in trunk, then vented via K&N breather underneath car.

jp

[eville]

6AN to vapor/liquid separator in trunk, then vented via K&N breather underneath car.

jp

Like this? Seems like overkill to me, and I typically like overkill....


http://store.summitracing.com/partde...5&autoview=sku

[eville]

Hmm, thoughts on these?
http://store.summitracing.com/partde...5&autoview=sku

[HarleyR]

Those work well providing the rear end isnt over filled which seems to be a common problem with people...

[parsonsj]

Check out a picture of it here (ignore that this shows a fuel tank connection... the rear end housing is identical).

jp

[jy211]

Pardon my ignorance, but what is the venting for? Do all Moser rears have to have this?

[parsonsj]

I've read that 9" housings need venting to reduce stress on the axle and 3rd member seals/gaskets. I'm not sure that 12 bolts or Danas need it as much. But if you think about it, as the air and liquid inside the housing warms up, it will expand. Having a vent seems like a good idea, and using filtered air for this would be a good idea too.

jp

[eville]

I decided to run one of these for now. I might do something different when I finally get to an EFI setup with an electric pump and need a tank vent too...
http://store.summitracing.com/partde...0&autoview=sku

[69HuggrrrPT]

I decided to run one of these for now. I might do something different when I finally get to an EFI setup with an electric pump and need a tank vent too...
http://store.summitracing.com/partde...0&autoview=sku

I'm looking for something better as well.
How would this push into the threaded hole on the housing?

[parsonsj]

The threaded hole is pipe thread (or mine was, anyway). Put a pipe to nipple adapter in the housing, then a short piece of hose to the breather.

jp

[eville]

I'll run a 1/4" npt to -6 nipple at the rear to a piece of pusholock hose and -6 fitting, make a bracket to mount the breather somewhere. I'll post up a picture on Sunday.

[1969CamaroRS]

What about just using a rubber hose to vent but putting a cheapie fuel filter in line and hanging it up where it can bend down. Then the water has to go directly up, get through the filter and then make a turn down.

[parsonsj]

Then the water has to go directly up, get through the filter and then make a turn down.

Water? Why are you talking about water?

jp

[1969CamaroRS]

Isn't the idea to keep water from getting into the vent and eventually the axle?

[parsonsj]

Well, sure. We don't want water anywhere where there is lubrication going on.

But that's not the reason for the filter on the breather. The idea is to filter air to keep dirt out. Dirt allowed in as part of the venting process can shorten the life of the parts.

Keeping water out is important, so a breather design shouldn't "collect" water. My breathers are shielded and hang upside down so that any water ingested can't make it into the axle innards. Direct-attached circle track style breathers are probably not good, since those cars don't have to worry about driving in the rain.

jp

[Vegas69]

Hmm, thoughts on these?
http://store.summitracing.com/partde...5&autoview=sku

I am going to run something similar. On my moser 12 bolt the vent is halfway between the carrier and axle flange. Can't think I am going to have to worry about much puking in that area. Time will tell.

[jy211]

my moser didn't come with the screw-in/breather tube part (the part into the rear end). Where can I find this?

[ProdigyCustoms]

It is just a 1/4 pipe to barb fitting Jeff