Date: Tue, 24 Jul 2007 22:34:52 -0700
Reply-To: Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Subject: Re: installed a valve on radiator,
makes bleeding air out of coolant "easier"
In-Reply-To: <BLU110-W25ACA3DD37E1E4E9EDB649D4F10@phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
Hi Marie !
Hot dog on finding the main coolant pipes reversed.
On any thermostat that has two 'doors' .......it's not kosher to run without
one in place.
It allows either coolant to be circulating in the hose from the water pump
housing to the side of the cylinder head ( assuming you have a diesel
vanagon layout on that 1.8 gasser engine )
Or , warmed up, it closes that off, and sends coolant to the radiator.
Without a thermostat, it does both, so coolant that should be going to the
radiator is just circulating through that bypass hose.
( clamping that hose off should might work though, temporarily )
any sort of picture of your belt set up will do. Doesn't have to be very
good. Just shoot what you can, from above and below even.
'Cooler is not better, warmer is." ....
180 is a good temp to run at.
Do the 165 for a while if you want.....but running at 165 wastes fuel
compared to 180 or 195.
I think you are just trying to get the thing sorted out and working at all
right now.....
But ultimately, when it's all sorted out and working right.......at least a
180. I go to the trouble to get good german OE type thermostats - Whaler is
one brand.
I understand you might have less opportunity for that, and you'd not want
to pay shipping all the way from the lower 48 for a basic thing like a
t-stat.
I'm not sure how much I trust FLAPS ones, but you will probably be fine.
Stay in touch, we'll be waiting your next successful report !
Scott
www.turbovans.com
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Mariposa Charme
Sent: Tuesday, July 24, 2007 9:04 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: installed a valve on radiator, makes bleeding air out of
coolant "easier"
Thanks for the wonderful advice Scott!
I have partly solved the overheating problem...the hoses to the radiator
were inverted. I switched them around, and now the radiator is cooling the
coolant. I also removed the thermostat, which seems to help too. The one in
there opened at 180. I ordered a 165. I'll try it out next week. I also
ordered a new water pump....I've had a hunch that that was part of the
coolant problem. Now I'll know for sure.
I'll check for the w pump speed too. As for air coming into the system,
well, that is very very possible. I'll have to run it a little longer to
figure out if I am getting air in there.I tried to get a picture of the belt
pulley set up of the water pump...can't...too narrow in there.
Again, thanks for the help. She is runnig cool right now!
And it is light all night here right now!!!! It gets darker at 2 o'clock in
the morning...loving it! You can get a lot done!
Marie
Yukon Territory
> From: scottdaniel@turbovans.com> To: mariposaducharme@HOTMAIL.COM>
Subject: RE: installed a valve on radiator, makes bleeding air out of
coolant "easier"> Date: Fri, 20 Jul 2007 12:08:45 -0700> > Hey - hi Mariposa
.....Yukon Territory - wow. Super nice there right now I> bet ! Love it up
there !> > Yeah...the valve on the radiator makes it WAY easier than dealing
with> bleeding, compared to that hokey screw set up. Well worth it . You
only> need to buy it once too, then for years and years bleeding is a lot
easier> and neater task.> > I was going to mention 'water pump speed' .....>
If you can, post a picture of your belt and pulley set up on a group site>
somewhere, like diesel vanagon yahoo group , then post the link here so
I/we> can see what you have there.> > If it is the stock super hokey diesel
vanagon two-belts with shims set up> ....at least you can be sure your water
pump speed is correct. > If someone hacked up some weird setup .....perhaps
they messed up the pulley> ratio. Water pump speed, compared to crank speed
is about ......well, if> the crank pulley is 5.5 inches diameter....w. pump
pulley should be about 4> inches diameter - roughly that ratio.> So check
that. It has to be around that ratio. > > Also...the type of impeller on the
water pump. ( you can see a piece of it> by removing the thermostat and
looking up in there. ) > The impeller must be what I call a 'volcano' shape.
A spiral taper cone,> either plastic or metal. If you see a paddle wheel
type ...it can't work.> Also the impeller face in the water pump housing.
Sometimes those are all> pitted or rotted out. Ether this being worn, or the
wrong type of impeller> wheel could definitely be factors !> >
Next....cooling system layout . Some people do some weird ass things in>
engine conversions - oy vey - can't tell you the hack work I've seen !!! >
It 'should' be EXACTLY like the diesel vanagon layout.> EXACTLY. - just to
give you an example....the return heater hose goes to> the bottom of the
pressure bottle ( T's in there ) and once in an engine> conversion ( 1.9TD
into a Double Cab Syncro ) with the hoses I had I put the> heater return to
the main coolant return pipe.> Should work, return is return, right ? No !
.....this allowed> coolant to circulate through the oil cooler or something
and not have to go> to the radiator ...hot engine, cold radiator....> So
check the layout ! It's critical that it be 'stock diesel vanagon> layout' .
> > ( btw, on the two v-belts with shims system - I convert that to a
perfect> 'single belt conversion' .....makes it super easy to adjust or
change the> one belt .....whoever made that two belts with shims setup
should have their> fingers mashed in a vice for a while or something
....it's a gross joke. I> only replace them. Won't even bother with that
dumb setup.) > > Next....if you have a water cooled vanagon that
continuously gets air in the> system .......for one, consider air leaks in
...and there are a lot of> places than can happen......dozens of parts and
connections ....> And also consider head gasket. I don't think you have this
going on, but if> you ever encounter a water cooled vanagon situation where
it unbleeds itself> on a regular basis...consider exhaust gases getting into
the coolant from> the head gasket.> > Carbed ? I'm so sorry ! > Smiles !>
Scott> www.turbovans.com> engine conversion specialist - mainly turbo diesel
and Subaru, but I'll put> anything in anything, 'almost.' > > It must be
light, or at least twilight, all night long up there these days> - luv it !
> > > > > -----Original Message-----> From: Vanagon Mailing List
[mailto:vanagon@gerry.vanagon.com] On Behalf Of> Mariposa Charme> Sent:
Friday, July 20, 2007 8:33 AM> To: vanagon@GERRY.VANAGON.COM> Subject:
installed a valve on radiator, makes bleeding air out of coolant> "easier">
> Finally! I can contribute something to the list!I have been reading a lot
in> the past few weeks. And am gaining a lot of knowledge. The Archives are>
really helpfull! My 83 vanagon is keeping me pretty busy. She has some>
serious cooling problems (which I knew before purshasing, and which is why
I> got her so cheap) She tends ot want to get a little too hot, and I am>
slowly learning about the miles and miles of coolant hoses inside a
vanagon!> The challenge is, she does not have the original diesel motor
anymore, she> was converted to a fuel powered, with a Jetta engine, 91, 92
or 93, with a> Rabbit head cover, and a carburator (!). I find it tricky,
cause I can't> really follow the Bentley, word for word. At first I though
she was> air-locked, but I think that I have all the air out of the cooling
system> now. She still runs hot...the cool coolant does not seem to reach
the hot> motor! Anyway, I though I'd share this: I installed a valve, sold
by Kennedy> Engeneering, were the air bleeder screw is. It is really easy to
open and> close the air bleeder hole on top of the rad. It is easyto open
and close.> (see pics) I am now in the process of making a reservoir with a
long tube> that I can attach to the expansion tank, to easilly fill the
cooling system.> It seems that if you pour in the rad fluid from a point
higher than the> radiator, you don't have to lift the front end. It seems to
work. I'll let> you know how it works out next week. I think that the
overheting problem> might be due to the fact that the Jetta water pump is
not powerful enough to> circulate the coolant in the bus. I found an
original diesel vanagon pump> and will try to instal it next week... Marie
Yukon Territory >
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