Re: Under bonnet temp

[Barrie Robinson <barrie@look.ca>]

Oliver,

You are a gentleman and a scholar sir!  You will need something that goes 
up to 180 deg F - I think!  So an oven whatsist should be okay.  Duct tape 
will stick it.   Run the car on the road for 15 minutes to get to working 
temp then whip bonnet(hood) open and record temp.  Close bonnet and wait 
3-5 mins then read again.   If you send me your address I will send you a 
piece of soundproofing that I am working on to see if it sticks under the 
max heat reached under the hood!!


At 11:39 AM 2/19/2005, you wrote:
> hey - i'm game.  my hood has no insulation; its a 73 cbb, bone stock as far
> as i know.
>
> duct tape and a thermometer?  should i use an oven thermometer?  what range
> thermometer do i need?
>
> ----- Original Message -----
> From: "Barrie Robinson" <barrie@look.ca>
> To: "James J." <m1garand@speakeasy.net>
> Cc: <mgb-v8@autox.team.net>; <mgs@autox.team.net>
> Sent: Saturday, February 19, 2005 3:09 PM
> Subject: Re: Under bonnet temp
>
>
> > James,
> >
> > No - no variables!   I just want the highest temp reached, - how, when and
> > if, is of no concern - just the hottest.  But you have solved my problem -
> > I think!  Do some cars have fibre glass bonnets?   If so then the bonnet
> > temp must be below 150 deg F ?????  The real way to find out is to tape a
> > thermometer under the hood and see what it registers after a long run -
> and
> > after standing for a few minutes!  Would anyone in a warm clime like to
> > perform this experiment?
> >
> > At 08:36 AM 2/19/2005, you wrote:
> > >Barrie,
> > >    There are too many variables out there to come up with an answer to
> > > that one.  Having said that, I'd suggest that you investigate a
> > > reflective surface on the engine-side of the dampening material, or a
> > > combo of insulating matereal atop a deadening compound.  Dynamat and
> > > others do this.  Let me throw out someunrelated numbers that will be of
> > > absolutely no use to you:  Engine exhaust manifolds can easily reach
> > > ~1200 Deg F, if they are uncoated or unwrapped.  Resin-based Fiberglass
> > > panels will soften at ~150 Deg F.  Some OEM paints blister or discolour
> > > on the hoods of really hot engines.  Assume a heat gun can do the same
> > > thing at ~600 Deg F.  Also, if the car is painted a dark color (or
> > >colour) like BRG or black, the sun, itself, can heat the material to
> > >nearly boiling (or higher).  For this reason, many fiberglass panel/body
> > >folks recommend against painting their products black.
> > >JJJ
> > >
> > >
> > >Barrie Robinson wrote:
> > >
> > >>Can anyone tell me with authority, the maximum temperature reached under
> > >>the hood - at the hood?  I need to know to check out what adhesives will
> > >>stick sound deadening stuff under the bonnet (hood)
> > >>
> > >>Regards
> > >>
> > >>Barrie Robinson
> > >
> > >Regards
> > >Barrie
> > >
> > >Barrie Robinson
> > >(705) 721-9060
Barrie Robinson
705-721-9060
MGB GT V8 in the making
Aston Martin DB 2/4 MkII in the wings

Purveyor of O-ring kits for Smith and Jaeger gauges
------- and of stainless steel mesh grilles for MGBs
------- and of bitumastic soundproofing 
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