35 What's a CAM "saver" cover, alias CAM splash guard, alias CAM cover baffle?
Description
This article is from the VW Technical FAQ, by with numerous contributions by Jan Vandenbrande others.
35 What's a CAM "saver" cover, alias CAM splash guard, alias CAM cover baffle?
A: It's piece of plastic that fits between the actual CAM cover and the upper
CAM bearings (just wedged between the two). When the car is running, oil is
splashed around a lot in the CAM chamber (just try it...you'll have to
repaint your garage) and sometimes saturates the positive crankcase
ventilation valve.
The PCV is connected to the breather tube on top of the CAM cover and goes
to the airfilter box. When the PCV gets saturated it my drip oil into your
airfilter box. The CAM saver cover prevents oil from splashing directly on
to the inner CAM cover, and also allows oil to drip back directly on the
CAM providing extra lubrication instead of just sliding back along the
sides. Both VW and certain after market places sell these barriers for
about US$ 15.
Many of the newer VWs (87 GTIs) have such a barrier installed as stock, but
you can often retrofit your car with it as well.
Note that these things not always fit quite right... According to Graig:
You need to buy a new cam cover gasket set too as you'll be junking your
old one when you take the cam cover off. If you have an aftermarket cam
cover, trade it in for a factory one, as the actual oil breather itself has
a better baffle (rather than just a screen or mesh like in some aftermarket
ones). This is a safe preventive too, even if you don't autocross.
Everyone who even thinks of driving their VW hard should put one of these
baffles in there
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