Subject: Re: [Healeys] Missing under Load

From: Alan Seigrist <[email-masked]>
Date: Sun, 14 Jun 2015 09:30:46 +0800

--===============3616074517978601064==

--089e0158c17e583a940518704a37
Content-Transfer-Encoding: quoted-printable

Price -

Try using compressed air to blow backwards through all your various fuel
points, starting with the floatchamber lids.

The only other thing I can think of is your fuel pump is not pumping with
enough pressure.  Suggest taking the line off the carb and turning on the
ignition and see how fast the fuel flow is.  If it's a low stream of fuel
that's your problem, may not have enough pressure to unseat the float
chamber needle.

Alan

On Sun, Jun 14, 2015 at 6:54 AM, R. Price Lindsay <[email-masked]> wrote=
:

> I=E2=80=99m sorry to come back to you with my issues but I=E2=80=99m out =
of ideas.
>
> I believe it is a lack of fuel to the rear carb.  The miss/backfire is
> always from the rear carb and down stream in the exhaust pipe serving the
> rear cylinders.  I have used a Colortune to try and tune the carbs.  It
> works fine on the front carb but I can=E2=80=99t even get a yellow color =
or see
> anything in the viewer except when it backfires.  *I haven=E2=80=99t foun=
d the
> fuel choke point*.  I=E2=80=99ve taken the floats apart and found some cr=
ud and
> cleaned them out.  I=E2=80=99ve removed the jet from the rear carb and cl=
eaned a
> very small amount of crud from it=E2=80=99s base.  I=E2=80=99ve set the f=
loat bowls at
> 5/16=E2=80=9D  and the needles work fine.  Fuel flows freely from the fro=
nt carb.
> The only remaining point I can think of is the passage between the float
> chamber and the jet.  I intend to take the carbs off again tomorrow and
> clean/clean/clean.
>
> Just so you know I have:
>
> 1. new points, condenser and rotor
> 2. new ignition cap, wires caps and plugs
> 3. drained the fuel tank and replaced with fresh fuel
> 4. tried a different coil - no help
> 5. set the timing
> 6. set the tappets
> 7. checked the needles - they are standard UH
> 8. verified the needles are seated properly and fall freely
> 9. removed fuel filter
> 10. changed fuel lines with new
> 11. did a compression test - 149, 142, 142, 138, 142, 139 psi front to ba=
ck
> 12. there is no oil in the coolant
>
> Thank you so much in advance for whatever light you can shed on this.
>
>
> Price Lindsay
> 67 BJ8
>
>
>
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation  $12.75
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
>
> [email-masked]
> http://autox.team.net/mailman/listinfo/healeys
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/[email-masked]
>
>
>

--089e0158c17e583a940518704a37
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Price -<div><br></div><div>Try using compressed air to blo=
w backwards through all your various fuel points, starting with the floatch=
amber lids.</div><div><br></div><div>The only other thing I can think of is=
 your fuel pump is not pumping with enough pressure.=C2=A0 Suggest taking t=
he line off the carb and turning on the ignition and see how fast the fuel =
flow is.=C2=A0 If it&#39;s a low stream of fuel that&#39;s your problem, ma=
y not have enough pressure to unseat the float chamber needle.</div><div><b=
r></div><div>Alan</div></div><div class=3D"gmail_extra"><br><div class=3D"g=
mail_quote">On Sun, Jun 14, 2015 at 6:54 AM, R. Price Lindsay <span dir=3D"=
ltr">&lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">050.rpl@gma=
il.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"=
margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style=
=3D"word-wrap:break-word">I=E2=80=99m sorry to come back to you with my iss=
ues but I=E2=80=99m out of ideas. =C2=A0<div><br></div><div>I believe it is=
 a lack of fuel to the rear carb.=C2=A0 The miss/backfire is always from th=
e rear carb and down stream in the exhaust pipe serving the rear cylinders.=
=C2=A0 I have used a Colortune to try and tune the carbs.=C2=A0 It works fi=
ne on the front carb but I can=E2=80=99t even get a yellow color or see any=
thing in the viewer except when it backfires. =C2=A0<b>I haven=E2=80=99t fo=
und the fuel choke point</b>.=C2=A0 I=E2=80=99ve taken the floats apart and=
 found some crud and cleaned them out.=C2=A0 I=E2=80=99ve removed the jet f=
rom the rear carb and cleaned a very small amount of crud from it=E2=80=99s=
 base.=C2=A0 I=E2=80=99ve set the float bowls at 5/16=E2=80=9D =C2=A0and th=
e needles work fine.=C2=A0 Fuel flows freely from the front carb.=C2=A0 The=
 only remaining point I can think of is the passage between the float chamb=
er and the jet.=C2=A0 I intend to take the carbs off again tomorrow and cle=
an/clean/clean.<div><br></div><div>Just so you know I have:</div><div><br><=
/div><div>1. new points, condenser and rotor</div><div>2. new ignition cap,=
 wires caps and plugs</div><div>3. drained the fuel tank and replaced with =
fresh fuel</div><div>4. tried a different coil - no help</div><div>5. set t=
he timing</div><div>6. set the tappets</div><div>7. checked the needles - t=
hey are standard UH</div><div>8. verified the needles are seated properly a=
nd fall freely</div><div>9. removed fuel filter</div><div>10. changed fuel =
lines with new</div><div>11. did a compression test - 149, 142, 142, 138, 1=
42, 139 psi front to back</div><div>12. there is no oil in the coolant</div=
><div><br></div><div>Thank you so much in advance for whatever light you ca=
n shed on this.</div><div><br><div>
<span style=3D"border-collapse:separate;color:rgb(0,0,0);font-family:&#39;T=
imes New Roman&#39;;font-style:normal;font-variant:normal;font-weight:norma=
l;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-ind=
ent:0px;text-transform:none;white-space:normal;word-spacing:0px"><br>Price =
Lindsay<br>67 BJ8<br><br></span>

</div>
<br></div></div></div><br>_______________________________________________<b=
r>
rer" target=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/archive" rel=3D"noreferrer" target=
=3D"_blank">http://www.team.net/archive</a><br>
Forums: <a href=3D"http://www.team.net/forums" rel=3D"noreferrer" target=3D=
"_blank">http://www.team.net/forums</a><br>
<br>
<a href=3D"mailto:[email-masked]">[email-masked]</a><br>
<a href=3D"http://autox.team.net/mailman/listinfo/healeys" rel=3D"noreferre=
r" target=3D"_blank">http://autox.team.net/mailman/listinfo/healeys</a><br>
<br>
s/[email-masked]" rel=3D"noreferrer" target=3D"_blank">http://autox.t=
eam.net/mailman/options/healeys/[email-masked]</a><br>
<br>
<br></blockquote></div><br></div>

--089e0158c17e583a940518704a37--

--===============3616074517978601064==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
Archive: http://www.team.net/archive

[email-masked]
http://autox.team.net/mailman/listinfo/healeys

--===============3616074517978601064==--

---

From: Price Lindsay <[email-masked]>
Date: Sat, 13 Jun 2015 21:47:58 -0400

--===============0728798302462438302==
	boundary=Apple-Mail-F9D40408-E048-4E88-91EE-D2AD852B4B8B
Content-Transfer-Encoding: 7bit

--Apple-Mail-F9D40408-E048-4E88-91EE-D2AD852B4B8B
	charset=utf-8
Content-Transfer-Encoding: quoted-printable

Thanks Alan. The pumps are less than 3 years old. Is there a screen in the p=
umps that could be blocked?

Price Lindsay

630-841-6300 Cell

Sent from my iPhone

> On Jun 13, 2015, at 9:30 PM, Alan Seigrist <[email-masked]> wrote:
>=20
> Price -
>=20
> Try using compressed air to blow backwards through all your various fuel p=
oints, starting with the floatchamber lids.
>=20
> The only other thing I can think of is your fuel pump is not pumping with e=
nough pressure.  Suggest taking the line off the carb and turning on the ign=
ition and see how fast the fuel flow is.  If it's a low stream of fuel that'=
s your problem, may not have enough pressure to unseat the float chamber nee=
dle.
>=20
> Alan
>=20
>> On Sun, Jun 14, 2015 at 6:54 AM, R. Price Lindsay <[email-masked]> wro=
te:
>> I=E2=80=99m sorry to come back to you with my issues but I=E2=80=99m out o=
f ideas. =20
>>=20
>> I believe it is a lack of fuel to the rear carb.  The miss/backfire is al=
ways from the rear carb and down stream in the exhaust pipe serving the rear=
 cylinders.  I have used a Colortune to try and tune the carbs.  It works fi=
ne on the front carb but I can=E2=80=99t even get a yellow color or see anyt=
hing in the viewer except when it backfires.  I haven=E2=80=99t found the fu=
el choke point.  I=E2=80=99ve taken the floats apart and found some crud and=
 cleaned them out.  I=E2=80=99ve removed the jet from the rear carb and clea=
ned a very small amount of crud from it=E2=80=99s base.  I=E2=80=99ve set th=
e float bowls at 5/16=E2=80=9D  and the needles work fine.  Fuel flows freel=
y from the front carb.  The only remaining point I can think of is the passa=
ge between the float chamber and the jet.  I intend to take the carbs off ag=
ain tomorrow and clean/clean/clean.
>>=20
>>=20
ck
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/healey.=
[email-masked]
>=20

--Apple-Mail-F9D40408-E048-4E88-91EE-D2AD852B4B8B
	charset=utf-8
Content-Transfer-Encoding: quoted-printable

<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div>Thanks Alan. The pumps are less than 3=
 years old. Is there a screen in the pumps that could be blocked?<br><br>Pri=
ce Lindsay<div><div><br></div><div>630-841-6300 Cell</div><div><br></div><di=
v><br></div><div>Sent from my iPhone</div></div></div><div><br>On Jun 13, 20=
15, at 9:30 PM, Alan Seigrist &lt;<a href=3D"mailto:[email-masked]">he=
[email-masked]</a>&gt; wrote:<br><br></div><blockquote type=3D"cite"><di=
v><div dir=3D"ltr">Price -<div><br></div><div>Try using compressed air to bl=
ow backwards through all your various fuel points, starting with the floatch=
amber lids.</div><div><br></div><div>The only other thing I can think of is y=
our fuel pump is not pumping with enough pressure.&nbsp; Suggest taking the l=
ine off the carb and turning on the ignition and see how fast the fuel flow i=
s.&nbsp; If it's a low stream of fuel that's your problem, may not have enou=
gh pressure to unseat the float chamber needle.</div><div><br></div><div>Ala=
n</div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Su=
n, Jun 14, 2015 at 6:54 AM, R. Price Lindsay <span dir=3D"ltr">&lt;<a href=3D=
"mailto:[email-masked]" target=3D"_blank">[email-masked]</a>&gt;</span=
> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bor=
der-left:1px #ccc solid;padding-left:1ex"><div style=3D"word-wrap:break-word=
">I=E2=80=99m sorry to come back to you with my issues but I=E2=80=99m out o=
f ideas. &nbsp;<div><br></div><div>I believe it is a lack of fuel to the rea=
r carb.&nbsp; The miss/backfire is always from the rear carb and down stream=
 in the exhaust pipe serving the rear cylinders.&nbsp; I have used a Colortu=
ne to try and tune the carbs.&nbsp; It works fine on the front carb but I ca=
n=E2=80=99t even get a yellow color or see anything in the viewer except whe=
n it backfires. &nbsp;<b>I haven=E2=80=99t found the fuel choke point</b>.&n=
bsp; I=E2=80=99ve taken the floats apart and found some crud and cleaned the=
m out.&nbsp; I=E2=80=99ve removed the jet from the rear carb and cleaned a v=
ery small amount of crud from it=E2=80=99s base.&nbsp; I=E2=80=99ve set the f=
loat bowls at 5/16=E2=80=9D &nbsp;and the needles work fine.&nbsp; Fuel flow=
s freely from the front carb.&nbsp; The only remaining point I can think of i=
s the passage between the float chamber and the jet.&nbsp; I intend to take t=
he carbs off again tomorrow and clean/clean/clean.<div><br></div><div>Just s=
o you know I have:</div><div><br></div><div>1. new points, condenser and rot=
or</div><div>2. new ignition cap, wires caps and plugs</div><div>3. drained t=
he fuel tank and replaced with fresh fuel</div><div>4. tried a different coi=
l - no help</div><div>5. set the timing</div><div>6. set the tappets</div><d=
iv>7. checked the needles - they are standard UH</div><div>8. verified the n=
eedles are seated properly and fall freely</div><div>9. removed fuel filter<=
/div><div>10. changed fuel lines with new</div><div>11. did a compression te=
st - 149, 142, 142, 138, 142, 139 psi front to back</div><div>12. there is n=
o oil in the coolant</div><div><br></div><div>Thank you so much in advance f=
or whatever light you can shed on this.</div><div><br><div>
<span style=3D"border-collapse:separate;color:rgb(0,0,0);font-family:'Times N=
ew Roman';font-style:normal;font-variant:normal;font-weight:normal;letter-sp=
acing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text=
-transform:none;white-space:normal;word-spacing:0px"><br>Price Lindsay<br>67=
 BJ8<br><br></span>

</div>
<br></div></div></div><br>_______________________________________________<br=
Support <a href=3D"http://Team.Net">Team.Net</a> <a href=3D"http://www.team.=
net/donate.html" rel=3D"noreferrer" target=3D"_blank">http://www.team.net/do=
nate.html</a><br>
Archive: <a href=3D"http://www.team.net/archive" rel=3D"noreferrer" target=3D=
"_blank">http://www.team.net/archive</a><br>
Forums: <a href=3D"http://www.team.net/forums" rel=3D"noreferrer" target=3D"=
_blank">http://www.team.net/forums</a><br>
<br>
<a href=3D"mailto:[email-masked]">[email-masked]</a><br>
<a href=3D"http://autox.team.net/mailman/listinfo/healeys" rel=3D"noreferrer=
" target=3D"_blank">http://autox.team.net/mailman/listinfo/healeys</a><br>
<br>
/[email-masked]" rel=3D"noreferrer" target=3D"_blank">http://autox.tea=
m.net/mailman/options/healeys/[email-masked]</a><br>
<br>
<br></blockquote></div><br></div>
</div></blockquote></body></html>=

--Apple-Mail-F9D40408-E048-4E88-91EE-D2AD852B4B8B--

--===============0728798302462438302==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email-masked]

--===============0728798302462438302==--

---

From: "J. Armour" <[email-masked]>
Date: Sun, 14 Jun 2015 14:05:15 +1000

> This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.

--===============5731550960340027585==
	boundary="B_3517135518_503187"

> This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.

--B_3517135518_503187
	charset="ISO-8859-1"
Content-transfer-encoding: quoted-printable

Have you check carb 'balance' ?     The air flow thro each should be the
same but if for some reason the throttle shafts have moved relative to each
other you can get miss firing. With throttle on rear SU not opening the sam=
e
as thbe front it will in effect be running lean.

Joe

>>=20
>> I believe it is a lack of fuel to the rear carb.  The miss/backfire is a=
lways
>> from the rear carb and down stream in the exhaust pipe serving the rear
>> cylinders.  I have used a Colortune to try and tune the carbs.  It works=
 fine
>> on the front carb but I can=B9t even get a yellow color or see anything in=
 the
>> viewer except when it backfires.  I haven=B9t found the fuel choke point. =
 I=B9ve
>> taken the floats apart and found some crud and cleaned them out.  I=B9ve
>> removed the jet from the rear carb and cleaned a very small amount of cr=
ud
>> from it=B9s base.  I=B9ve set the float bowls at 5/16=B2  and the needles work
>> fine.  Fuel flows freely from the front carb.  The only remaining point =
I can
>> think of is the passage between the float chamber and the jet.  I intend=
 to
>> take the carbs off again tomorrow and clean/clean/clean.
>>=20
>> Just so you know I have:
>>=20
>> 11. did a compression test - 149, 142, 142, 138, 142, 139 psi front to b=
ack
>> Thank you so much in advance for whatever light you can shed on this.

--B_3517135518_503187
	charset="ISO-8859-1"
Content-transfer-encoding: quoted-printable

<html><head></head><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: s=
pace; -webkit-line-break: after-white-space; font-size: 14px; font-family: C=
alibri, sans-serif; "><div style=3D"color: rgb(0, 0, 0); ">Have you check carb=
 'balance' ? &nbsp; &nbsp; The air flow thro each should be the same but if =
for some reason the throttle shafts have moved relative to each other you ca=
n get miss firing. With throttle on rear SU not opening the same as thbe fro=
nt it will in effect be running lean.</div><div style=3D"color: rgb(0, 0, 0); =
"><br></div><div style=3D"color: rgb(0, 0, 0); ">Joe</div><div style=3D"color: r=
gb(0, 0, 0); "><br></div><span id=3D"OLK_SRC_BODY_SECTION"><div style=3D"color: =
rgb(0, 0, 0); "><div dir=3D"auto"><blockquote type=3D"cite"><div><div class=3D"gma=
il_extra"><div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"ma=
rgin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style=3D"wor=
d-wrap:break-word"><div><br></div><div>I believe it is a lack of fuel to the=
 rear carb.&nbsp; The miss/backfire is always from the rear carb and down st=
ream in the exhaust pipe serving the rear cylinders.&nbsp; I have used a Col=
ortune to try and tune the carbs.&nbsp; It works fine on the front carb but =
I can&#8217;t even get a yellow color or see anything in the viewer except w=
hen it backfires. &nbsp;<b>I haven&#8217;t found the fuel choke point</b>.&n=
bsp; I&#8217;ve taken the floats apart and found some crud and cleaned them =
out.&nbsp; I&#8217;ve removed the jet from the rear carb and cleaned a very =
small amount of crud from it&#8217;s base.&nbsp; I&#8217;ve set the float bo=
wls at 5/16&#8221; &nbsp;and the needles work fine.&nbsp; Fuel flows freely =
from the front carb.&nbsp; The only remaining point I can think of is the pa=
ssage between the float chamber and the jet.&nbsp; I intend to take the carb=
s off again tomorrow and clean/clean/clean.<div><br></div><div>Just so you k=
now I have:</div><div><br></div><div>1. new points, condenser and rotor</div=
><div>2. new ignition cap, wires caps and plugs</div><div>3. drained the fue=
l tank and replaced with fresh fuel</div><div>4. tried a different coil - no=
 help</div><div>5. set the timing</div><div>6. set the tappets</div><div>7. =
checked the needles - they are standard UH</div><div>8. verified the needles=
 are seated properly and fall freely</div><div>9. removed fuel filter</div><=
div>10. changed fuel lines with new</div><div>11. did a compression test - 1=
49, 142, 142, 138, 142, 139 psi front to back</div><div>12. there is no oil =
in the coolant</div><div><br></div><div>Thank you so much in advance for wha=
tever light you can shed on this.</div><div><br><div><span style=3D"border-col=
lapse: separate; color: rgb(0, 0, 0); font-style: normal; font-variant: norm=
al; font-weight: normal; letter-spacing: normal; line-height: normal; text-a=
lign: -webkit-auto; text-indent: 0px; text-transform: none; white-space: nor=
mal; word-spacing: 0px; font-family: 'Times New Roman'; "><br>Price Lindsay<=
br>67 BJ8<br><br></span></div></div></div></div></blockquote></div></div></d=
iv></blockquote></div></div><font class=3D"Apple-style-span" color=3D"#0000ee"><=
u><br></u></font></span></body></html>

--B_3517135518_503187--

--===============5731550960340027585==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email-masked]

--===============5731550960340027585==--