Date: Fri, 19 Feb 2016 17:46:22 -0800
Reply-To: Neil N <musomuso@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Neil N <musomuso@GMAIL.COM>
Subject: Re: Friday water pump fun!
In-Reply-To: <CAB2RwfjwSeZsS6N4-rGGHdJ2YbaHPr8gp2-kfekNxkasM1EQYw@mail.gmail.com>
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Hey folks.
Scott:
yes. I did see your other post. Yes I know that one usually does the pump
and housing as a unit. As mentioned, I removed the pump only as I didn't
have quick or easy access to the "always replace" bolts that hold the
accessory bracket to engine. If I recall, that bracket has to be removed to
do it the way you and the Bentley manual describe. I've read that those
bolts can be reused but I didn't want to do that. If I'd known that the
intermediate shaft sprocket had to be removed to do the pump replacement
like I did, I'd have never done it that way. When I asked a poster on
vwvortex about that sprocket, he assured me I wouldn't have to remove that
sprocket so I tore into the engine. That's when all the horrid cussing
emitted from my yapper. Lol.
Dennis:
The NAPA pump as shown at NAPA dealers computer display showed it
having the OEM type cast impeller. This is what I'd wanted as I'd read of
the same potential issue you point to. This was not what NAPA supplied. THe
pump had the stamped impeller. Bumbs! I initially returned it but figured
local repair shops would likely use the same part and I wasn't sure they or
any other local vendor could get the pump I wanted. For about 30 bucks, if
it gets me through this trip and back home, I've won. The Hepu I removed
had the stamped impeller and yes, it had a noticeable amount of lateral
play at the shaft. I'm assuming the bearing(s) were worn too far, At time
of swap, I installed a new Hepu pump and housing. It came with a paper
gasket. Thanks for the info on that gasket.
I wasn't certain of how many miles were on the new parts I'd installed at
time of swap. I really doubt I eve have 40k miles on them. Did the belts
etc only because of that. It's very ironic that the pump noise started
right after the belt jobs. Maybe I hadn't heard it before that?
Don:
My engine is also "power nothing". And for sur. This neck of the woods is
quite beautiful. I wish I'd done the entire drive along highway 178 during
the day. The first part is filled with funky looking cactus ?
Almost stayed at a rec site at higher elevation but it was already really
cold at 6 pm.
The transition closer to Bakersfield was most welcome to my eye. Image
https://lh3.googleusercontent.com/-_YscikdWRVk/VsfD-9uxYeI/AAAAAAAALjY/IzYRUy7eHj0/s800-Ic42/image.jpeg
The Holy Smokes bbq in bishop had good food and pleasant female servers of
the rock climbing variety.
Neil
On Friday, February 19, 2016, Neil N <musomuso@gmail.com> wrote:
> Hi all.
>
> Am on a holiday road trip in the US. I'm about 2300 miles in so far.
> Before leaving Vancouver BC, I did some maintenance on my westy. Timing
> belt, tensioner, idler arm roller, coolant swap etc. After that work I
> noticed a very intermittiment light sound "choonk choonk choonk" sound.
> Initially figured it was the idler roller, then alternator, then finally
> narrowed it down to water pump. Since the noise hadn't gotten consistently
> worse, I chose to drive into Death Valley. For anyone thinking of doing
> this trip, do it! I got lucky in that the wild flowers were in full bloom.
> But then it was Presidents' Day long weekend so it was crowded.
>
> After returning to Bishop, CA, the pump noise was getting worse. German
> Sierra was quite helpful but busy as were other shops possibly far less
> familiar with a vanagon let alone one with a Jetta engine so I chose to do
> the job on the BLM land I was staying at. The weather was starting to
> change thiugh and as my NOAA radio predicted, it became windy. I was
> more concerned about heat (I'd previously remove the crank etc to check the
> pump fasteners. None were siezed. The daytime heat was harsh) but oh the
> wind!
>
> At times I had to shut my eyes and wait while under my bus. I was quick to
> stuff a rag into the pump housing to keep the sand out!
>
> Since I knew the pump housing had relatively low miles, and I didn't want
> to be waiting days for "always replace" bolts I chose to just swap out the
> pump. Vw vortex forum said "no" I didn't have to remove the intermediate
> shaft sprocket to get the pump out. NOT true! This discovery, during the
> mild wind storm wrenching event, prompted a slew of expletives unmatched by
> any sailor or turrets stricken victim. Thankfully I had the foresight to
> buy some steel and fasteners to make a VW3036 tool to hold the spocket.
>
> The upshot of al this is I got the job done and so far, no leaks, no
> noise. The only real gotcha is that a captive fastener at the pump got
> lost, I didn't have the tools to retrieve it, so I installed a cable strap
> at that point. The torque value is low for each pump fastener so I should
> be ok. Permatex was also deployed at pump gasket.
>
> Here's some trip pics. One shows pump housing wear and tool I made. This
> tool worked, but in hindsight, I'd put a couple sockets over the bolt
> threads. I doubt I harmed the sprocket. I surely hope I torqued it down
> enough!
>
>
> https://picasaweb.google.com/musomuso/Feb2016Trip#6253067318906070738
>
>
>
>
> --
> Neil n
>
> Blog: Vanagons, Westfalia, general <http://tubaneil.blogspot.ca>
>
> 1988 Westy Images <https://picasaweb.google.com/musomuso/New1988Westy>
>
> 1981 Westfalia "Jaco" Images, technical <http://tubaneil.googlepages.com/>
>
> Vanagon-Bus VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>
>
>
--
Neil n
Blog: Vanagons, Westfalia, general <http://tubaneil.blogspot.ca>
1988 Westy Images <https://picasaweb.google.com/musomuso/New1988Westy>
1981 Westfalia "Jaco" Images, technical <http://tubaneil.googlepages.com/>
Vanagon-Bus VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>
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