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Message-ID: <3036fbc30905131216i2b3a9b74n6c1727e3c45653e8@mail.gmail.com>
Subject: RE: Initial Tuning
From: Mike Fontenot <mikef@apexconsultingservices.com>
To: flyrotary@lancaironline.net
Content-Type: multipart/alternative; boundary=0016e644c2ce8e03360469d00b45

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Thanks guys,

Great ideas on ways to check the throttle body for leaks.  This weekend I
will tackle the alternator no-power problem. Then move forward.
Jim: injectors are the originals on the brand new engine, so I have to
assume they are the correct size.

>>WD-40 - I've had good luck finding vacuum leaks using WD-40. With the
engine running, spray WD-40 around the intake gasket and other places you
suspect a leak. Since WD-40 is flammable, the engine will change speed if it
sucks some liquid into the intake. If the engine speed changes, you've found
your leak. For safety purposes, and to keep the WD-40 from spraying you in
the face, you may want to remove the prop.

VACUUM GAUGE - Another way to diagnose engine problems is with a vacuum
gauge. See
http://autospeed.com/cms/title_Using-a-Vacuum-Gauge-for-Engine-Diagnostics/A_2393/article.html
Mark S.

PINCH HOSE - One way to test for intake manifold leaks is to pinch off hoses
one by one while the engine is running to see if RPM decreases. You could
also remove the each hose at the manifold an plug the inlet. Also be sure
that the intake manifold gasket and throttle body gasket are sealing good
and that all bolts are tight.

FUEL INJECTORS - Are you using the right fuel injector for your application?

YES - ORIGINALS
Such large jumps may be due to improper injector sizing.
The Geo engine is a fuel sipper rather than a gas guzzler so it would
require
an injector that can meter fuel much more precisely.
<<

-- 
Mike

================================
Mike Fontenot
Apex Consulting & Services LLC
Lakewood, Colorado
303 / 731-6645
mikef AT apexconsultingservices DOT com
================================

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Thanks guys,<br><br>Great ideas on ways to check the throttle body for leak=
s.=A0 This weekend I will tackle the alternator no-power problem. Then move=
 forward.<br>Jim: injectors are the originals on the brand new engine, so I=
 have to assume they are the correct size. <br>
<br>&gt;&gt;WD-40 - I&#39;ve had good luck finding vacuum leaks using WD-40=
. With the
engine running, spray WD-40 around the intake gasket and other places
you suspect a leak. Since WD-40 is flammable, the engine will change
speed if it sucks some liquid into the intake. If the engine speed
changes, you&#39;ve found your leak. For safety purposes, and to keep the
WD-40 from spraying you in the face, you may want to remove the prop.<br>
 <br>
VACUUM GAUGE - Another way to diagnose engine problems is with a vacuum gau=
ge.  See <a href=3D"http://autospeed.com/cms/title_Using-a-Vacuum-Gauge-for=
-Engine-Diagnostics/A_2393/article.html">http://autospeed.com/cms/title_Usi=
ng-a-Vacuum-Gauge-for-Engine-Diagnostics/A_2393/article.html</a><br>

Mark S.<br>
<br>
PINCH HOSE - One way to test for intake manifold leaks is to pinch off
hoses one by one while the engine is running to see if RPM decreases.
You could also remove the each hose at the manifold an plug the inlet.
Also be sure that the intake manifold gasket and throttle body gasket
are sealing good and that all bolts are tight.<br>
<br>
FUEL INJECTORS - Are you using the right fuel injector for your application=
? <br>
YES - ORIGINALS<br>
Such large jumps may be due to improper injector sizing.<br>
The Geo engine is a fuel sipper rather than a gas guzzler so it would requi=
re<br>
an injector that can meter fuel much more precisely.<br>&lt;&lt;<br clear=
=3D"all"><br>-- <br>Mike<br><br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>Mike Fontenot<br>=
Apex Consulting &amp; Services LLC<br>Lakewood, Colorado<br>303 / 731-6645<=
br>
mikef AT apexconsultingservices DOT com<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>

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