[Vwdiesel] your over heating issue

[paul lew]

I had that problem about a few years ago,the fan cooled that area down, 
but the rest stayed hot, it turned out that there were clogs in the internal 
rad pipes causing it to not circulate properly(apparently it's not uncommon).
 
Buying a used rad  you never know what it's history is, could end up worse, or better but not 100%.
A new one costed me around $90.
If I recall, I started heating it up and used a infared thermometer and the temps were varying.
Right now I'm waiting for a special low temperature fan switch I ordered to replace the
 current one in the rad, so it doesn't have to get sooo hot before the fan turns on.
 
we have alot of killer hills in B.C.(Canada)
Paul


------------------------------

Message: 4
Date: Mon, 21 Jul 2008 23:26:09 -0400 (EDT)
From: Val Christian <val at mongo.mongobird.com>
Subject: Re: [Vwdiesel] New head installed 91 ECO
To: mikitka at embarqmail.com (mikitka), vwdiesel at vwfans.com
Message-ID: <200807220326.m6M3Q9Y1026251 at mongo.mongobird.com>
Content-Type: text/plain; charset=us-ascii

The timing won't make a big temp difference on that engine.

Chances are you have some air in the cooling system.  

On a side note, there are some vacuum devices which "burp" air out of

cooling systems, which make them easier to fill.  Anyone have one?

Can I just take an old pressure cap and hook it up to a vacuum pump?

Nick, check your cooling system for air captive in the head.  A few 
thermal cycles will help, but it would be better to somehow get it out
first.  Chrysler puts a plug in their 4 cyl heads for this.

> 
> Well, it turned out to be advanced in timing making the pinging loud
diesel
> sound. I retarded it just a little and the sound went away. Good news
there.
> I also got my EGT gage working. I ran a ground straight from the battery
and
> that fixed it.
> 
> But wait there is more, now I have an over heat issue. I took it out to
> stretch it's legs some and noticed that the temp gage was running past
> middle which isn't normal, at least before it wasn't unless I was
running
> the AC which I wasn't. So I came right back home and while in the
drive it
> got up to just about the 3/4 line and looked to see if the fans were on
and
> they were not, I turned the ac on and the fans came one, turned ac off and
> fans went off. So I shut it down. I felt the hoses and all were hot, the
> radiator was hot everywhere I could touch it. Could the timing not being
set
> exact make a difference on running temp?
> 
> Nick
> 
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