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Some parts like i.e. the distributor or carbs are taken of the engine
when it is rebuild and then after having lain on the shelf for months or
even years are put back on the engine the way they came off, without
resetting or cleaning.
In the distributor are the bob weights inside the body that regulate the
mechanical advance. These need regular maintenance (mostly forgotten) to
prevent them from corrosion and sticking. It is not seldom that these
get stuck or do not move freely which might be a cause for backfiring.
Also check the plugs and wires.
If the car is still on points check the dwell angle and points
condition. Also check the timing.
Kees Oudesluijs
Op 25-1-2021 om 15:57 schreef rfbegani@gmail.com:
>
> Listeners:
>
> I have been driving my 67 BJ8 since rebuilding and working on the rest
> of the car the past year. After installing the new shock absorbers
> and the new speedo, I took the car for a ride. With the new shocks
> and the new Shaved tires, she drives like brand new car down the
> Tamiami Trail at 50-70 mph, so I decided to push it a little more.
> However at 4000 plus rpms and about 90 mph, I was not looking so
> closely at the speedo or tack, the engine back fired, so I let off the
> gas and returned to normal highway speeds. Engine ran fine all the
> way home. Suggestions what could cause the backfire at high speeds?
>
> Bob Begani
>
>
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<p>Some parts like i.e. the distributor or carbs are taken of the
engine when it is rebuild and then after having lain on the shelf
for months or even years are put back on the engine the way they
came off, without resetting or cleaning. <br>
</p>
<p>In the distributor are the bob weights inside the body that
regulate the mechanical advance. These need regular maintenance
(mostly forgotten) to prevent them from corrosion and sticking. It
is not seldom that these get stuck or do not move freely which
might be a cause for backfiring. Also check the plugs and wires.</p>
<p>If the car is still on points check the dwell angle and points
condition. Also check the timing.</p>
<p><br>
</p>
<p>Kees Oudesluijs</p>
<p><br>
</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">Op 25-1-2021 om 15:57 schreef
<a class="moz-txt-link-abbreviated"
href="mailto:rfbegani@gmail.com";>rfbegani@gmail.com</a>:<br>
</div>
<blockquote type="cite"
cite="mid:02d201d6f32a$76260ef0$62722cd0$@gmail.com">
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:14.0pt;font-family:"Arial",sans-serif">Listeners:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:14.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:14.0pt;font-family:"Arial",sans-serif">I
have been driving my 67 BJ8 since rebuilding and working on
the rest of the car the past year. After installing the new
shock absorbers and the new speedo, I took the car for a
ride. With the new shocks and the new Shaved tires, she
drives like brand new car down the Tamiami Trail at 50-70
mph, so I decided to push it a little more. However at 4000
plus rpms and about 90 mph, I was not looking so closely at
the speedo or tack, the engine back fired, so I let off the
gas and returned to normal highway speeds. Engine ran fine
all the way home. Suggestions what could cause the backfire
at high speeds?<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:14.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:14.0pt;font-family:"Arial",sans-serif">Bob
Begani <o:p></o:p></span></p>
</div>
<br>
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<pre class="moz-quote-pre"
wrap="">_______________________________________________
Archive: <a class="moz-txt-link-freetext"
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<a class="moz-txt-link-abbreviated"
href="mailto:Healeys@autox.team.net";>Healeys@autox.team.net</a>
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href="http://autox.team.net/mailman/listinfo/healeys";>http://autox.team.net/mailman/listinfo/healeys</a>
</pre>
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