Date: Tue, 31 Dec 2013 16:48:02 -0600
Reply-To: Jim Felder <jim.felder@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Jim Felder <jim.felder@GMAIL.COM>
Subject: Re: Overheating
In-Reply-To: <BAY403-EAS2845F787F65F142634B03F8A0C90@phx.gbl>
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Yes, in my haste to answer I left out the obvious. Warped or cracked head
equals a blown gasket as far as the car is concerned. My last round with
such a problem was only solved, after trying several heads, by sending the
block out to be resurfaced. The block tends to pull up "hills" around the
head bolt holes which leaves "valleys" between the studs, in the very
places that do the water sealing between the head and block.
Jim
On Tue, Dec 31, 2013 at 4:18 PM, Dennis Haynes <d23haynes57@hotmail.com>wrote:
> Could also be a cracked head or block.
>
> Dennis,
> From my phone.
> ________________________________
> From: Steve<mailto:loudmouth_70@YAHOO.COM>
> Sent: 12/31/2013 3:57 PM
> To: vanagon@GERRY.VANAGON.COM<mailto:vanagon@GERRY.VANAGON.COM>
> Subject: Overheating
>
> Vanagon Listers:
>
> I've got an 82 diesel, she's overheating. On 5 hour road trip, after hour
> 4 started blowing cold air then back to hot, then cold again. Soon the
> needle raised up and light flashed. Had extra coolant with me, while
> topping off expansion saw that the cloth wrapped hose to fill tank had come
> off. Replaced and gingerly made it to destination. Stopped three times to
> let cool. I figured I'd gotten air into the system and needed to bleed it
> out. I've done that today--with little success. Got it up to temp, parked
> on a ridiculous incline to get the air up to the radiator. Not much
> hissing. After 8 attempts only once did coolant bleed out. Air continued
> to blow mostly cold with heat cranked, occasionally while driving around it
> warmed a little. Needle would raise at low RPM's then return closer to the
> middle when I revved it up. Even at slower speeds with engine revved it
> would cool--that confuses me a bit as little air is moving over
> the radiator--makes me think it'd be hotter.
>
> I'm wondering about two things: first what's likely to be the cause of
> this behavior? Secondly, any tricks for getting me home before starting
> these projects?
>
> I'll be leaving Friday, I'm at Lake Chelan in WA, little town of Manson to
> be exact. My gut tells me Radiator for sure, pretty sure it's the
> original. Not sure about thermostat or heater core.
>
> Happy New Year, appreciate the advice. Nothing like bringing in the new
> year with a little repair work.
>
> steve
>
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