Re: Bodgernomics

fishman nineteen at bifgoot dot com wrote:

However, there was an almighty plume of steam coming from the inlet manifold
area. Damn! A plastic thing that circulates water to cool the inlet
manifold (why?) broke when I was trying to fit another pipe elsewhere.

it's to warm the inlet manifold.

<fishman nineteen at bifgoot dot com> wrote

However, there was an almighty plume of steam coming from the inlet
manifold
area. Damn! A plastic thing that circulates water to cool the inlet
manifold (why?) broke when I was trying to fit another pipe elsewhere.

Is the water not there to warm up the inlet manifold/carb so that the auto
choke switches off once the engine is warmed up? - would also explain the
fast idle.

"Craig M" <craig (AT) news-nospam (DOT) co.uk> wrote

fishman nineteen at bifgoot dot com> wrote in message
news:7565b9bd90ed626c242d550a1bdb7b66 (AT) news (DOT) teranews.com...

However, there was an almighty plume of steam coming from the inlet
manifold
area. Damn! A plastic thing that circulates water to cool the inlet
manifold (why?) broke when I was trying to fit another pipe elsewhere.

Is the water not there to warm up the inlet manifold/carb so that the auto
choke switches off once the engine is warmed up? - would also explain the
fast idle.

No it warms the manifold to keep the petrol from pudling, condensing on the
cool wals, so it is burned by the engine. It should make more power now,
run a touch weak at lower rpm and have higher hydrocarbons at idle.

However, there was an almighty plume of steam coming from the inlet
manifold
area. Damn! A plastic thing that circulates water to cool the inlet
manifold (why?) broke when I was trying to fit another pipe elsewhere.

That's the wonders of the spark ignition internal combustion engine. A cold
engine runs better if you heat the inlet manifold, and for ultimate
eficiency on a hot engine you need a cool dense charge of air.

Apparently on date Sun, 9 May 2004 14:56:02 +0100, "Craig M"
<craig (AT) news-nospam (DOT) co.uk> said:

fishman nineteen at bifgoot dot com> wrote in message
news:7565b9bd90ed626c242d550a1bdb7b66 (AT) news (DOT) teranews.com...

However, there was an almighty plume of steam coming from the inlet
manifold
area. Damn! A plastic thing that circulates water to cool the inlet
manifold (why?) broke when I was trying to fit another pipe elsewhere.

Is the water not there to warm up the inlet manifold/carb so that the auto
choke switches off once the engine is warmed up? - would also explain the
fast idle.

Hmm, I have a water jacketed inlet manifold and no choke at all, much less an
auto one (old V8). I've always assumed this was to warm the air to a constant
temperature and avoid icing due to pressure changes.

What's the actual reason, anyone know?

Apparently on date Sun, 9 May 2004 18:27:42 +0100, "Burgerman"
<burgerman (AT) ntlworld (DOT) com> said:

"Craig M" <craig (AT) news-nospam (DOT) co.uk> wrote in message
news:VLqnc.1463$GX4.1270 (AT) nurse (DOT) blueyonder.net...

fishman nineteen at bifgoot dot com> wrote in message
news:7565b9bd90ed626c242d550a1bdb7b66 (AT) news (DOT) teranews.com...

However, there was an almighty plume of steam coming from the inlet
manifold
area. Damn! A plastic thing that circulates water to cool the inlet
manifold (why?) broke when I was trying to fit another pipe elsewhere.

Is the water not there to warm up the inlet manifold/carb so that the auto
choke switches off once the engine is warmed up? - would also explain the
fast idle.

No it warms the manifold to keep the petrol from pudling, condensing on the
cool wals, so it is burned by the engine. It should make more power now,
run a touch weak at lower rpm and have higher hydrocarbons at idle.

Ah, that's what it's for!

"Sales!" <Questions (AT) bargain-pricings (DOT) com> wrote

Apparently on date Sun, 9 May 2004 14:56:02 +0100, "Craig M"
craig (AT) news-nospam (DOT) co.uk> said:


fishman nineteen at bifgoot dot com> wrote in message
news:7565b9bd90ed626c242d550a1bdb7b66 (AT) news (DOT) teranews.com...

However, there was an almighty plume of steam coming from the inlet
manifold
area. Damn! A plastic thing that circulates water to cool the inlet
manifold (why?) broke when I was trying to fit another pipe elsewhere.

Is the water not there to warm up the inlet manifold/carb so that the
auto
choke switches off once the engine is warmed up? - would also explain the
fast idle.

Hmm, I have a water jacketed inlet manifold and no choke at all, much less
an
auto one (old V8). I've always assumed this was to warm the air to a
constant
temperature and avoid icing due to pressure changes.

What's the actual reason, anyone know?

Yes to keep liquid fuel vaporised....
It improves "running", emissions, economy.
But costs power.




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