[tcb] Re: Average head temps

ha ha

just consider how much aluminum expands.. Valve seats, stellite or hardend
steel, are pressed into the head.

Aluminum melts at 1220F so you're still a way away from melting but that's
one of the main causes of dropped valve seats....

Also remember that the valve guides, bronze/silicone, also have different
expansion properties so if you run
your head at a high temp for a sustained period expect things to fall off.


To Chuck's point though, just drive it but also develop a profile of what
your engine's characteristics are
so that when you see it jump to 500F you can then say "this isn't right."





On Mon, May 18, 2009 at 9:13 PM, James Dwan <james_dwan_2000@xxxxxxxxx>wrote:

> yep, I already had the "Woah 450 degrees!" on the way home and I was only
> doing 70. But it reminds me not to stay on the  pedal as much.
>
> --- On *Mon, 5/18/09, chuck <sukchew@xxxxxxxxxxxxxx>* wrote:
>
>
> From: chuck <sukchew@xxxxxxxxxxxxxx>
> Subject: [tcb] Re: Average head temps
> To: tcb@xxxxxxxxxxxxx
> Date: Monday, May 18, 2009, 7:16 PM
>
> When Denis "built"Murray he wanted a cht gauge .I told him to forget it
> because it would scare him to death.The oil temp is enough.
> oleblue
>
> ----- Original Message -----
>  *From:* w.wood <http://mc/compose?to=evil.scientist.boo@xxxxxxxxx>
> *To:* tcb@xxxxxxxxxxxxx <http://mc/compose?to=tcb@xxxxxxxxxxxxx>
> *Sent:* Monday, May 18, 2009 4:04 PM
> *Subject:* [tcb] Re: Average head temps
>
> I picked up a quad analog aircraft cht gauge a few months ago.  I'm still
> looking for the senders for it.  Ratwell.com as mentioned does have some
> info on CHT.
>
> Here's a table I've referenced recently.  It sounds like you're in
> comparable range.
>
> http://www.type2.com/rvanness/1600saga.htm#11
>
>
>
>
> On Mon, May 18, 2009 at 10:08 AM, James Dwan 
> <james_dwan_2000@xxxxxxxxx<http://mc/compose?to=james_dwan_2000@xxxxxxxxx>
> > wrote:
>
>>   Nope, I'll check it out. Thanks!
>> James
>>
>>
>> --- On *Mon, 5/18/09, 
>> 71Westy@xxxxxxxxxxx<http://mc/compose?to=71Westy@xxxxxxxxxxx>
>> <71Westy@xxxxxxxxxxx <http://mc/compose?to=71Westy@xxxxxxxxxxx>>* wrote:
>>
>>
>> From: 71Westy@xxxxxxxxxxx <http://mc/compose?to=71Westy@xxxxxxxxxxx> <
>> 71Westy@xxxxxxxxxxx <http://mc/compose?to=71Westy@xxxxxxxxxxx>>
>> Subject: [tcb] Re: Average head temps
>> To: tcb@xxxxxxxxxxxxx <http://mc/compose?to=tcb@xxxxxxxxxxxxx>
>> Date: Monday, May 18, 2009, 8:19 AM
>>
>>  Have you looked at ratwell.com? He has some notes about the DD CHT
>> there. One day I'm going to get one.
>> ----- Original Message -----
>> From: "James Dwan" 
>> <james_dwan_2000@xxxxxxxxx<http://mc/compose?to=james_dwan_2000@xxxxxxxxx>
>> >
>> To: tcb@xxxxxxxxxxxxx <http://mc/compose?to=tcb@xxxxxxxxxxxxx>
>> Sent: Monday, May 18, 2009 8:11:29 AM GMT -06:00 US/Canada Central
>> Subject: [tcb] Average head temps
>>
>>    So I got the DD CHT gauge wired up yesterday. I couldn't get it to go
>> to the "set up" mode. Does anyone have a Dakota Digital CHT gauge on the
>> list?
>> Anyway it appears to be working fine, yanked out the VDO gauges if anyone
>> is interested in them lemme know. They are the gauges only for oil temp and
>> oil pressure.
>>
>> Average temp was about 350 when about 60 mph but got up to 404 in 4th
>> going 80 with it floored. Are these average? I have never had a CHT gauge
>> before.
>>
>> James
>>
>>
>>
>>
>
>
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