Subject: Re: [TR] TR3A Woes

From: Jim Henningsen <[email-masked]>
Date: Sun, 17 Nov 2019 13:17:34 -0500

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Thanks for all the feedback!  On another 3 I just sold, I had the same issue=
 with mechanical fuel pump and cam lobe and replaced with low flow electric f=
uel pump. Fixed problem perfectly.  This car has electric fuel pump.  I turn=
ed two more flats rich and also forgot to top off the dampers with oil.  Tha=
t did the trick.  I could probably bring the idle down to 750, but then the h=
ood vibrates with an awe full noise at the latch.  Haven=E2=80=99t sorted th=
at yet, but it doesn=E2=80=99t do it with idle at 900. =20
Jim Henningsen

Sent from my iPad

> On Nov 17, 2019, at 9:16 AM, TeriAnn J. Wakeman <[email-masked]> wrot=
e:
>=20
> =EF=BB=BF
> First of all, never get too focused on fuel circuits that you ignore the i=
gnition circuit. Both have the same symptoms. That said, it wouldn't hurt to=
 look at your fuel pressure at idle. if the flow is too low at idle the floa=
t chamber may not stay full. Had that problem with my current reground cam. T=
he fuel pump lobe only partially moved the pump leaver giving me almost zero=
 fuel pressure at idle. An electric fuel pump was cheaper than replacing an o=
therwise good cam and cured my off idle hesitation problem plus smoothed out=
 my idle.  It also wouldn't hurt to check your spark in case of a weak coil.=

>=20
> 900 RPM seems like a very high idle. Why do you have it set so high? Might=
 be a clue.
>=20
> TeriAnn
> 1961 TR3A (built spring of 1960)
> 1960 Land Rover Dormobile
> Don't need anything else.
>=20
> On 11/17/19 6:09 AM, Jim Henningsen wrote:
>> Good morning,
>> My 61 TR3A is coughing a bit and I need some help diagnosing.  Healthy mo=
tor, stock dizzy, points, red rotor.  I replaced the seals on the jet bearin=
gs and went through the procedure to balance and set mixture.  Idles nicely a=
t 900 rpm, choke works well.  Once warmed up though, it has a bad hesitation=
 when I push the gas pedal down a third of the way from idle.  It coughs and=
 if I don=C3=A2=E2=82=AC=E2=84=A2t pump the throttle will stall.  Very consi=
stent.  The mixture adjusting nuts are turned down 10 flats.  It does run sm=
oother without hesitating with choke on which makes me think it is still not=
 rich enough. =20
>>=20
>> Any thoughts would be much appreciated while I drink my coffee and try to=
 keep warm in the frigid south.  50 degrees this am in Florida. =20
>>=20
>> Jim Henningsen
>> Ocala, FL
>> 61 TR3A=20
>> 62 TR4
>> 75 TR6
>> 81 TR8
>> 82 Jeep CJ8
>>=20
>> Sent from my iPad=20
>> ** [email-masked] **
>>=20
>> Donate: http://www.team.net/donate.html
>> Archive: http://www.team.net/pipermail/triumphs  http://www.team.net/arch=
ive
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[email-masked]
>=20
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> Book - The Essential Guide to Overland Travel in the United States and Can=
ada=20
> 2 years to write and 38 years of travel and camping to learn what to write=

>=20
> Because the world beckons and life waits for no one
>=20
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>=20
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Thanks for all the feedback! &nbsp;On anoth=
er 3 I just sold, I had the same issue with mechanical fuel pump and cam lob=
e and replaced with low flow electric fuel pump. Fixed problem perfectly. &n=
bsp;This car has electric fuel pump. &nbsp;I turned two more flats rich and a=
lso forgot to top off the dampers with oil. &nbsp;That did the trick. &nbsp;=
I could probably bring the idle down to 750, but then the hood vibrates with=
 an awe full noise at the latch. &nbsp;Haven=E2=80=99t sorted that yet, but i=
t doesn=E2=80=99t do it with idle at 900. &nbsp;<div>Jim Henningsen<br><br><=
div dir=3D"ltr">Sent from my iPad</div><div dir=3D"ltr"><br><blockquote type=
=3D"cite">On Nov 17, 2019, at 9:16 AM, TeriAnn J. Wakeman &lt;tjwakeman@gmai=
l.com&gt; wrote:<br><br></blockquote></div><blockquote type=3D"cite"><div di=
r=3D"ltr">=EF=BB=BF
 =20
    <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DUTF-8"=
 =20
 =20
    <div class=3D"moz-cite-prefix">First of all, never get too focused on
      fuel circuits that you ignore the ignition circuit. Both have the
      same symptoms. That said, it wouldn't hurt to look at your fuel
      pressure at idle. if the flow is too low at idle the float chamber
      may not stay full. Had that problem with my current reground cam.
      The fuel pump lobe only partially moved the pump leaver giving me
      almost zero fuel pressure at idle. An electric fuel pump was
      cheaper than replacing an otherwise good cam and cured my off idle
      hesitation problem plus smoothed out my idle.&nbsp; It also wouldn't
      hurt to check your spark in case of a weak coil.</div>
    <div class=3D"moz-cite-prefix"><br>
    </div>
    <div class=3D"moz-cite-prefix">900 RPM seems like a very high idle.
      Why do you have it set so high? Might be a clue.</div>
    <div class=3D"moz-cite-prefix"><br>
    </div>
    <div class=3D"moz-cite-prefix">TeriAnn</div>
    <div class=3D"moz-cite-prefix">1961 TR3A (built spring of 1960)</div>
    <div class=3D"moz-cite-prefix">1960 Land Rover Dormobile</div>
    <div class=3D"moz-cite-prefix">Don't need anything else.<br>
    </div>
    <div class=3D"moz-cite-prefix"><br>
    </div>
    <div class=3D"moz-cite-prefix">On 11/17/19 6:09 AM, Jim Henningsen
      wrote:<br>
    </div>
    <blockquote type=3D"cite" cite=3D"mid:5CB9E28D-9EFE-4384-BFCA-4595DE1951=
[email-masked]">
      <pre class=3D"moz-quote-pre" wrap=3D"">Good morning,
My 61 TR3A is coughing a bit and I need some help diagnosing.  Healthy motor=
, stock dizzy, points, red rotor.  I replaced the seals on the jet bearings a=
nd went through the procedure to balance and set mixture.  Idles nicely at 9=
00 rpm, choke works well.  Once warmed up though, it has a bad hesitation wh=
en I push the gas pedal down a third of the way from idle.  It coughs and if=
 I don=C3=A2=E2=82=AC=E2=84=A2t pump the throttle will stall.  Very consiste=
nt.  The mixture adjusting nuts are turned down 10 flats.  It does run smoot=
her without hesitating with choke on which makes me think it is still not ri=
ch enough. =20

Any thoughts would be much appreciated while I drink my coffee and try to ke=
ep warm in the frigid south.  50 degrees this am in Florida. =20

Jim Henningsen
Ocala, FL
61 TR3A=20
62 TR4
75 TR6
81 TR8
82 Jeep CJ8

Sent from my iPad=20
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    <p><br>
    </p>
    <div class=3D"moz-signature">-- <br>
      <p align=3D"center"><a href=3D"http://overlandtravel.us">Book - The
          Essential Guide to Overland Travel in the United States and
          Canada</a>
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