healeys
[Top] [All Lists]

[Healeys] Missing under Load

To: Healey List <healeys@autox.team.net>
Subject: [Healeys] Missing under Load
From: "R. Price Lindsay" <050.rpl@gmail.com>
Date: Sat, 13 Jun 2015 18:54:32 -0400
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
--===============7533302021761820801==


--Apple-Mail=_E2A7E164-E061-41EA-9DD1-3B8359BEE463
Content-Transfer-Encoding: quoted-printable
        charset=utf-8

I=E2=80=99m sorry to come back to you with my issues but I=E2=80=99m out =
of ideas. =20

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 found the fuel 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 cleaned a very small amount of =
crud from it=E2=80=99s base.  I=E2=80=99ve set the float bowls at =
5/16=E2=80=9D  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.

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 =
back
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



--Apple-Mail=_E2A7E164-E061-41EA-9DD1-3B8359BEE463
Content-Transfer-Encoding: quoted-printable
        charset=utf-8

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">I=E2=80=99m sorry to come back to you with my issues but =
I=E2=80=99m out of ideas. &nbsp;<div class=3D""><br class=3D""></div><div =
class=3D"">I believe it is a lack of fuel to the rear 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 Colortune =
to try and tune the carbs. &nbsp;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. &nbsp;<b class=3D"">I haven=E2=80=99t found =
the fuel choke point</b>. &nbsp;I=E2=80=99ve taken the floats apart and =
found some crud and cleaned them out. &nbsp;I=E2=80=99ve removed the jet =
from the rear carb and cleaned a very small amount of crud from it=E2=80=99=
s base. &nbsp;I=E2=80=99ve set the float bowls at 5/16=E2=80=9D =
&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 passage =
between the float chamber and the jet. &nbsp;I intend to take the carbs =
off again tomorrow and clean/clean/clean.<div class=3D""><br =
class=3D""></div><div class=3D"">Just so you know I have:</div><div =
class=3D""><br class=3D""></div><div class=3D"">1. new points, condenser =
and rotor</div><div class=3D"">2. new ignition cap, wires caps and =
plugs</div><div class=3D"">3. drained the fuel tank and replaced with =
fresh fuel</div><div class=3D"">4. tried a different coil - no =
help</div><div class=3D"">5. set the timing</div><div class=3D"">6. set =
the tappets</div><div class=3D"">7. checked the needles - they are =
standard UH</div><div class=3D"">8. verified the needles are seated =
properly and fall freely</div><div class=3D"">9. removed fuel =
filter</div><div class=3D"">10. changed fuel lines with new</div><div =
class=3D"">11. did a compression test - 149, 142, 142, 138, 142, 139 psi =
front to back</div><div class=3D"">12. there is no oil in the =
coolant</div><div class=3D""><br class=3D""></div><div class=3D"">Thank =
you so much in advance for whatever light you can shed on =
this.</div><div class=3D""><br class=3D""><div =
apple-content-edited=3D"true" class=3D"">
<span class=3D"Apple-style-span" style=3D"border-collapse: separate; =
color: rgb(0, 0, 0); font-family: 'Times New Roman'; font-style: normal; =
font-variant: normal; font-weight: normal; letter-spacing: normal; =
line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: =
0px; text-transform: none; white-space: normal; widows: 2; word-spacing: =
0px; -webkit-border-horizontal-spacing: 0px; =
-webkit-border-vertical-spacing: 0px; =
-webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: =
auto; -webkit-text-stroke-width: 0px;  "><br =
class=3D"Apple-interchange-newline">Price Lindsay<br class=3D"">67 =
BJ8<br class=3D""><br class=3D""></span>

</div>
<br class=3D""></div></div></body></html>=

--Apple-Mail=_E2A7E164-E061-41EA-9DD1-3B8359BEE463--

--===============7533302021761820801==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

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

Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys



--===============7533302021761820801==--

<Prev in Thread] Current Thread [Next in Thread>