Valve cover glue 1978 280z

[rcb280z]

You could put one of those filters everyone talks about between the tank and the fuel pump as added protection from the rust in the tank. I believe it's called the G-3 filter.

[Dogariffic]

Thanks.

I do use the additional filter and it catches everything.  It is helpful to be able to see the residue and I change it about every 6 weeks so far.  It appears to be catching less so maybe everything is getting flushed out.

[Chickenman]

2 hours ago, rcb280z said:

How important is that baffle? I imagine Nissan had a good reason for it, no?

Pretty important. The OHC throw a LOT of oil spray into the interior of the VC. Without the baffle it can be sucked into the Intake manifold via the PCV system when you go WOT. PCV system reverses airflow at WOT.  More important on EFI engines where VC vent is routed back into Intake tract.  Carbed cars will just blort it out at the end of the vent line. May cause increased oil consumption on both types of cars... 

 

Edit: It's actually a very well designed baffle system. I've Autocrossed for decades. Datsun L seriers never have an oil consumption problem due to top end oil being sucked through the PCV system.  Older domestic V8's have a big problem though. You really have to think hard about the  VC venting,  catch can and PCV design to solve that issue. Interesting to note that GM has been using centrifugal oil separators for some time on their LS motors. You will see these on a fair number of BMW's and Mercedes engines. 

The Mann Hummel Provent oil separator is  becoming very popular with the Forced induction crowd. Has a built in valve to control air flow under boost:

https://store.034motorsport.com/catch-can-air-oil-separator-provent-200.html

https://www.mann-hummel.com/fileadmin/user_upload/service/catalogues/pdf/ProVent_en_2013.pdf

 

 

Edited March 22, 2017 by Chickenman

[rcb280z]

I figured it was important. Just couldn't remember why. Good info, thanks.