travis: sandseal pully and breather box?

Jul 19, 2003 2 Replies

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Does having a sandseal pulley require better breathing in the head covers? What's the theory behind breathing the valve covers?



Just wondering...



BTW, great log of your adventures. I've enjoyed it tremendously!


On Sat, 19 Jul 2003 12:21:41 -0700, David Gravereaux , who was sitting in a corner eating his Xmas pie stuck in his thumb and pulled out a plum and began to run off at the mouth like so:

From what I've been told, yes.

Apparently with the stock crank pulley, the lack of a seal allows for all of the breathing that the case needs, but when you install the sand seal pulley you have to compensate by opening things up somewhere else. I never dug deeply into specifics of this. I just got a lot of comments from people on RAMVA when I mentioned I was going to put a sand seal pulley on and they all told me I should install a breather box. I kinda blindly followed their advice. Seems to be working out fine so far.

Thanks. I had a lot of fun putting the whole thing together. I'm thinking of hitting some trails tomorrow that I just found this morning. A whole system of them. Looks like at least 5 different entrances into these trails. About ten miles from my house... I've been out there twice today, once this morning on the motorcycle while I was hunting for them, and again with my wife in her car while I showed her where she might need to come rescue me and the LCB in the near future. ;-) Stay tuned...

-- Travis (Shaggie) '63 VW Camo Baja...

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corrodes the vessel that carries it.

I have a sandseal pulley, too, but no extra breathing and this one damn oil leak I just can't find. The bottom of the engine is always wet and leaves drips where it's parked. Appears to be coming from the front of the engine _somewhere_. I just can't find where... Need more gunk! The end seal was replaced in january when the top-end was rebuilt but it is wet around the hole up into the flywheel.

She's up on jackstands now while I finish off lining the engine compartment with some shiny "hot water heater blanket" in place of the icky tar board. I gotta get me one of them digital cameras :)

I'll inspect some more today and consider the extra breathing. Thanks.

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