Glen -
The heat shield can be made much more effective by polishing both sides (to
a mirror finish if you've got the patience.) Polishing reduces the
emissitivity of the shield so that more heat is reflected back to the
header and less of however much is absorbed is re-radiated towards the carbs.
regards,
Clay L.
'67 Sprite
At 12:13 PM 5/6/2002 -0700, Glen Byrns wrote:
>With the turbo under my bonnet, heat after is a big factor. Within twenty
>or thirty minutes of shutdown, it is difficult to restart. It sputters and
>surges as the fuel flash boils on entering the carb. The hot turbo bleeds
>so much heat across to the carb that it is very hot to the touch. After a
>minute of surging, it steadies down as the inrushing air drops the carb temp
>to where it doesn't boil the gas as soon as it touches the needle. That
>doesn't really sound like the problem being described.
>
>It might be worthwhile to be sure the insulating fiber spacers are in place
>on the troubled engine. Unfortunately I have only space enough for two
>thicknesses of heavy paper gasket material between the intake throat and the
>carb. Paul's fan idea might be just the ticket for me.
>
>
>
> > A lot of older, not fuel injected, japanese cars with carbs sitting in a
>hot
> > location, they mount a small electric fan that blows on the carb and
>manifold
> > assembly. Why not something like this on the Spridgets with a header that
>has a
> > potential overheating of the intake manifold problem?
> >
> > Paul A
/// unsubscribe/change address requests to majordomo@autox.team.net or try
/// http://www.team.net/mailman/listinfo
/// Archives at http://www.team.net/archive/spridgets
|