[TR] Re torque TR4A head, hot or cold ?

[Wbeech@flash.net]

Yes, but as the head and studs go through heat cycles they expand/contract/stretch and don’t necessarily settle back exactly as they started when you cranked 105ftlbs to begin with.  Re-torquing is always advised.  

Bill B

Sent from my Handspring Treo

On Jul 31, 2018, at 7:53 PM, David P <frogeye at porterscustom.com> wrote:

this makes no sense. To get it hot it has to run, but one wouldn't run it without it being torqued down especially with wet liners. So cold torque the head and use new studs and nuts too. daveP

> On 7/31/2018 12:26 PM, Tony Drews wrote:
> Retorque hot.
> 
> A rule I thumb I was recently told: Iron head = retorque hot, Aluminum head = retorque cold.
> 
> Cheers, Tony Drews
> 
>> On 7/31/2018 10:51 AM, asg123 at centurylink.net wrote:
>> Recently replace the exhaust valves on my car.  New German made head gasket. Running well, very pleased.  Wonder what the consensus is it better 
>> to re torque when engine is cool or hot?  As always thanks to all for the help I have received keeping this car going over the years.  Arnold S Gilmour
>> 
>>  
>> 
>> 
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