healeys
[Top] [All Lists]

Re: [Healeys] Fuel from the manifold drip tubes

To: healeys <healeys@autox.team.net>
Subject: Re: [Healeys] Fuel from the manifold drip tubes
From: Bob Spidell <bspidell@comcast.net>
Date: Thu, 12 Nov 2015 15:06:10 +0000 (UTC)
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <5644181F.20009@frontiernet.net> <56448F23.6000800@comcast.net>
Thread-index: Bwinm3CANy5yXUdkR59FJyikGSFarg== s=q20140121; t=1447340770; bh=aklbUd5ymMT9B4w/uhiEn4+CdO33K8IoKNotKuB4cjk=; h=Received:Received:Date:From:To:Message-ID:Subject:MIME-Version: Content-Type; b=qxNSMxdnaJWAgrkU5HMsIWM3O9lPsTzq+VVW2+94VYgGfswd1uib0JLE6D9ioLkP3 lcBxMstdaGiuxazDK0fGUFJg+LeJm1kiKn+idAlrVL8IEnTas2fUUOL3QCepEhJDNq hP/06hzp1ggkWRPCf2fV6TVpLLzzlsI0j3atK58wp0jwRytk27/5clelrxu14yMWt9 VvszeKQzDsoTCs2AW/Z+NVDjwCviAUj+N+P/bx6QGXuB0gpxNQXnJD15wgPBAASgEf rfShXU/azMXlUNI9B6GibgySqGFJjuVLyQH5Hq76URHRkC8DuhCuX/3RS3+RqjhVjy aw1EFiJrczoaA==
Thread-topic: Fuel from the manifold drip tubes
--===============6897288710708153151==
        boundary="----=_Part_4365452_1161106915.1447340770216"

------=_Part_4365452_1161106915.1447340770216
Content-Transfer-Encoding: 7bit

Had a thought (that didn't die of loneliness): 

The intake manifold sits atop the exhaust manifold (on later cars with the 
'log' manifold). This is so the exhaust can keep the carbs warm to aid in 
atomization of fuel and prevent wall-wetting (most other carburetted cars pass 
warm coolant through the base of the carb to do the same thing). There should 
be a couple gaskets between, and I've never known for sure if the gaskets are 
to insulate the intake or to help pass the heat. Probably the former, but if 
it's the latter and yours are missing that MIGHT be part of the issue. If 
you've ever pressure-washed your engine you might have destroyed these gaskets. 

Bob 

----- Original Message -----

From: "Bob Spidell" <bspidell@comcast.net> 
To: "healeys" <healeys@autox.team.net> 
Sent: Thursday, November 12, 2015 5:07:47 AM 
Subject: Re: [Healeys] Fuel from the manifold drip tubes 

That's mostly normal when the engine's cold, but shouldn't happen much, 
if at all, once it's been warmed-up. The only explanation I can think 
of is running rich, due to the reasons Alan suggested. I have gotten it 
occasionally on my BJ8 when warm, though. 

Google 'wall wetting' for some technical info, although it mostly 
applies to injected engines (I always assumed it wouldn't happen with 
injected engines, but it can be a problem with them, too). 

Bob 

On 11/11/2015 8:39 PM, Elton Schulz wrote: 
> Fellow Listers, 
> I'm getting a small amount of fuel dripping out from the intake 
> manifold drip pipes from my BJ7 when idling. What causes that? The 
> engine is running well and it doesn't appear to be on the rich side. 
> Thanks, 
> Elton 
> 




------=_Part_4365452_1161106915.1447340770216
Content-Transfer-Encoding: quoted-printable

<html><body><div style=3D"font-family: Arial; font-size: 12pt; color: #0000=
00"><div aria-label=3D"Compose body">Had a thought (that didn't die of lone=
liness):<br></div><div aria-label=3D"Compose body"><br></div><div aria-labe=
l=3D"Compose body">The intake manifold sits atop the exhaust manifold (on l=
ater cars with the 'log' manifold).&nbsp; This is so the exhaust can keep t=
he carbs warm to aid in atomization of fuel and prevent wall-wetting (most =
other carburetted cars pass warm coolant through the base of the carb to do=
 the same thing).&nbsp; There should be a couple gaskets between, and I've =
never known for sure if the gaskets are to insulate the intake or to help p=
ass the heat.&nbsp; Probably the former, but if it's the latter and yours a=
re missing that MIGHT be part of the issue.&nbsp; If you've ever pressure-w=
ashed your engine you might have destroyed these gaskets.<br></div><div ari=
a-label=3D"Compose body"><br></div><div aria-label=3D"Compose body">Bob<br>=
</div><div><br></div><hr id=3D"zwchr"><div style=3D"color:#000;font-weight:=
normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,s=
ans-serif;font-size:12pt;" data-mce-style=3D"color: #000; font-weight: norm=
al; font-style: normal; text-decoration: none; font-family: Helvetica,Arial=
,sans-serif; font-size: 12pt;"><b>From: </b>"Bob Spidell" &lt;bspidell@comc=
ast.net&gt;<br><b>To: </b>"healeys" &lt;healeys@autox.team.net&gt;<br><b>Se=
nt: </b>Thursday, November 12, 2015 5:07:47 AM<br><b>Subject: </b>Re: [Heal=
eys] Fuel from the manifold drip tubes<br><div><br></div>That's mostly norm=
al when the engine's cold, but shouldn't happen much, <br>if at all, once i=
t's been warmed-up. &nbsp;The only explanation I can think <br>of is runnin=
g rich, due to the reasons Alan suggested. &nbsp;I have gotten it <br>occas=
ionally on my BJ8 when warm, though.<br><div><br></div>Google 'wall wetting=
' for some technical info, although it mostly <br>applies to injected engin=
es (I always assumed it wouldn't happen with <br>injected engines, but it c=
an be a problem with them, too).<br><div><br></div>Bob<br><div><br></div>On=
 11/11/2015 8:39 PM, Elton Schulz wrote:<br>&gt; Fellow Listers,<br>&gt; I'=
m getting a small amount of fuel dripping out from the intake <br>&gt; mani=
fold drip pipes from my BJ7 when idling. What causes that? The <br>&gt; eng=
ine is running well and it doesn't appear to be on the rich side.<br>&gt; T=
hanks,<br>&gt; Elton<br>&gt;<br><br><div><br></div></div><div><br></div></d=
iv></body></html>
------=_Part_4365452_1161106915.1447340770216--

--===============6897288710708153151==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

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

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



--===============6897288710708153151==--

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