[Vwdiesel] Cool VW talks ---- ( wall to wall fun )

[Erik Lane]

as far as the germans being smart and wonderful
engineers? i generally agree and for the most part am
a devout fan. but they do get a few things wrong. i am
still in awe of the robust design of their cv joints
in comparison with the wimpy american ones i see.
smallest part being a 3/4 inch ball bearing compared
to a tiny little needle bearing.


> Cool  talk ?  ---I followed the cooling talks
> closely ---but no one mentioned that these
> VW Rabbit radiators may be cross feed types not up
> and down. That means first
> the flow goes one way and then returns to the same
> end.
> 

the vanagon radiator is the same way - the tubes go
side to side with both in and out on the passenger
side of vehicle. doesn't change much in my mind as far
as drawing from top or bottom or where the air (if
there ever is any) in the system will end up.


> Speeding up cooling pump was mentioned ---I did that
> so I know it works. On a 
> Vanagon special , an extra electric pump could be
> used.
> My experience with those screw type pumps is this--
> they produce very little
> head -. So keep system in good shape.In the past we
> discussed cavitation if 
> pump is speeded up. The screw is small diameter so
> it may not be a problem.
> Burping the system is important. That pump will not
> push air out by force.
> 

screw type pumps? are you talking about the impeller
with the slightly curved blades?


> If you have cooling problems ---remove pump and
> inspect. I had one with barsleak
> welded to the impeller. Totally ruining pump action.
> Loren mentioned rotors made
> from pressed sheet , not cast. I never seen one.(he
> said get rid)
> 

only thing i disagree with you here is about the
removing pump and inspect. if you remove the pump i
would suggest you just replace it rather than inspect.
(of course inspecting it is a good thing to do for
troubleshooting purposes.) for the small cost of these
pumps i wouldn't take a chance on it.


> The best cooling system I ever saw was a 109"   1960
> Landrover  desert version.
> I have one  --and the fan and shroud is something to
> behold.  Death valley strikes
> no fear in this girls heart. (Annabelle).
> 
> If you saw The Gods must be crazy --you know that
> Landrovers can be fun too.
> 
> Yikes it is Cavalier time ----here comes Susan.
> (spaghetti in hand ).
> 
> Hagar.
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> 



		
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