Date: Mon, 2 May 2016 11:39:22 -1000
Reply-To: Scott <SCOTTDANIEL@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott <SCOTTDANIEL@TURBOVANS.COM>
Subject: Re: Coolant Pump Gently Weeping
In-Reply-To: <CAA5Wjghtc+K6_MaEgmhz6q67CMPV5=9yCq6eF=iUapMErPy2bg@mail.gmail.com>
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tips...
you won't be removing the large crankshaft pulley ..unless you want to
go to a LOT of work and effort.
just leave it there.
Very obviously the people who designed this water pump system were not
thinking about ease of replacing the water pump.
Totally stupid as 70,000 miles ( only ) can be normal life on these pumps.
Get the highest quality water pump you can find.
'the hardest part' ...
that cross=over pipe attached to the waterpump at the 5 o-clock posistion ..
a pipe going to the right side of the engine, behind the crank pulley.
the two allen screws that hold that pipe to the water pump.
the upper one is not that bad.
the lower one ...
ha ha ha. I think I have a cut-off 6 mm allen for that one.
I have spent Well Over an Hour on that one bolt alone, and I have done
this job 20 to 40 times.
if you're lucky it will just unscrew.
Once that is undone ...loosen the hose clamps on that pipe ( just to the
right of the crank pulley ) ...
maybe even undo where the right end of the pipe is attached to right head...
then you can wiggle the pipe some behind the crank pulley to free it
from the water pump and to clean up the gasket surface on the pipe.
You won't get it out of there really or fully.
very important ..going back together, toss those 6mm allen screws and
install M8 X 1.25 bolts with smaller hex heads. I collect ones with 12mm
hex heads from Subaru engines ..
and sometimes I find some with 10mm hex heads.
Very handy and easy to work on next time.
the main large black pipe on the left side.
Quite a few times I've seen that held on with just one ( of 2 bolts. ) ..
loosen the forward end of the pipe where there is a hose and hose clamps..
so there is some movement at the water pump end to make it easier to
work on.
mainly ...just takes a lot of patience.
doing the job for people professionally ...it sure doesn't look like
it's going to take the better part of 5 hours to do a complete full job..
including changing some coolant ( vanagons can never have their coolant
changed to fresh too often ) ..
bleeding the radiator , checking the whole thing out etc.
I often think people that design engines and cars are stupid, and should
be forced to work on cars in shops
( in the trenches so to speak ) for a full 5 years full time BEFORE,
ever designing something....
so they have half a brain about how something is going to get worked on.
have fun !
S.
On 04/30/2016 07:33 PM, Gabriel Hourtouat wrote:
> I must change my coolant pump. (Confirmed by inspection with a mirror.)
>
> Bentley isn't too much help.
>
> I looked up some Gerry archives -- I laughed, I cried, we were one. I have
> a pump from one of our esteemed list members; but no new hoses or plastic
> pipes, etc.
>
> Any tips?
>
> I don't have the special tool to get the 3-groove pulley off (page 19.35).
>
> Dreadfull,
> Gabby
> 1986 Westy 2.1 WBX (2 wheel drive)
>
