[T2] Fwd: [Q] Overheating

[dcm7293 at gmail.com]

Sent from my iPhone

Begin forwarded message:

> From: Sami Dakhlia <sami.dakhlia at gmail.com>
> Date: September 1, 2015 at 11:22:12 AM CDT
> To: David C Matthews <dcm7293 at gmail.com>
> Subject: Re: [T2] [Q] Overheating
> 
> Thanks. So the oil is hot, but you will also want to know if the heads
> are too hot.
> Here is a link to something I wrote up a long time ago.
> http://www.type2.com/dakhlia/overheating.html
> See if you can figure out if it's a heat generation or a cooling problem.
> Is the thermostat working? And if it failed, did it fail in the open
> position (i.e., where plenty of air does flow to the oil cooler)?
> 
>> On Tue, Sep 1, 2015 at 5:44 PM, David C Matthews <dcm7293 at gmail.com> wrote:
>> My bus is a 1971 Westy with a custom (oversized) engine. To give you an idea
>> of output, it was designed to produce 135 HP. It's hasn't been put on a
>> dyno, however.
>> 
>> The engine has less than 5000 miles on it, although I'm not sure when the
>> problem started. I know it's running hot 'cause after an hour or so of
>> driving, you can't touch the dipstick -- it's that hot. Also, it was running
>> so hot that some of the residual plastic in the ceiling of the engine
>> compartment (took out the old "straw") started to melt. I went crazy with
>> the fire extinguisher before figuring out what was smoldering. Fun.
>> 
>> FWIW, the side cooling compartment/baffles on the body are clear (no bird's
>> nests or any obstructions).
>> 
>> David
>> 
>> 
>> 
>> On Tue, Sep 1, 2015 at 10:27 AM, Sami Dakhlia <sami.dakhlia at gmail.com>
>> wrote:
>>> 
>>> Hi David,
>>> Please tell us more: what year bus, what kind of engine, when did the
>>> problem start, how do you know it's running hot?
>>> Cheers,
>>> Sami
>>> 
>>> On Tue, Sep 1, 2015 at 5:03 PM, David C Matthews <dcm7293 at gmail.com>
>>> wrote:
>>>> My Type2 is overheating (big surprise). What started as a concern has
>>>> now
>>>> turned into an (almost) full-blown mess. Can you say "about to swallow a
>>>> valve" and "needs new heads"?
>>>> 
>>>> Problem is, until I resolve the overheating issue, can't feel good about
>>>> spending money to fix what's broken. But, the chicken-and-the-egg
>>>> problem
>>>> being what it is, can't diagnose the overheating problem until I get her
>>>> running again.
>>>> 
>>>> Thoughts?
>>>> 
>>>> David
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>> 
>>