--===============0160125714423860769==
Content-Transfer-Encoding: 7bit
--Apple-Mail-29480B5B-EA86-4AAB-A3BC-2CFCD2708209
charset=utf-8
Content-Transfer-Encoding: quoted-printable
Oh and I only use Ethanol free gas . Around high 90s octane.
Don=20
Sent from my iPhone
> On May 6, 2021, at 11:13 AM, fsufan1952@yahoo.com wrote:
>=20
> =EF=BB=BFHi All ,=20
> I have a 67 BJ-8 . And when I did a frame off restoration I lived in M=
ass. Well me and my Healey are now living in central Florida. And my mods a=
re a set of headers from Dennis Welch along with his matching 2 inch exhaust=
system. I had the headers ceramic coated and I wrapped them with header ins=
ulation tape . I completely used fuel line insulation wrap from mid way on t=
he car all the way up to the carbs . I installed a neat set of fuel bowl ins=
ulated coozies from Joe Coutu. Along with a new radiator from AH Spares and a=
electronic fan mounted to it . My next mod was a new intake manifold , also=
from AH Spares , there newly designed system with round 2 inch ports . I al=
so had this ceramic coated . I still install the original Healey heat shield=
. I installed an electronic ignition system and a new SU electronic fuel pu=
mp .=20
> Well running around Florida it runs strong . But every time I come to=
a stop light , then pull away I always have vapor lock problems. Stopping a=
t a stop light I get no air flow around the carbs . Looking back installing t=
hose fender rally vents I=E2=80=99m sure would help getting rid of some of t=
he engine heat . None of these mods have stopped my vapor lock problems. My=
next attempt at solving the fuel vapor problem is I just insalled a cooling=
fan from Chill Out , a company that specializes in race car cooling systems=
. It=E2=80=99s a 3 inch fan about the size of a beer can . I mounted it next=
to my brake reservoir with ducting on the intake side pulling in air from i=
n front of the radiator, then duct work on the output side blowing onto the c=
arbs . Unfortunately I ran out of time to test it as I=E2=80=99m now back i=
n Mass for 3 weeks. When I get back to Florida I=E2=80=99m looking forward t=
o =F0=9F=A4=9E seeing if this helps . I can supply pictures of all the above=
mods if anyone is interested.=20
> Wish me Luck =F0=9F=91=8D=F0=9F=8F=BB Don
>=20
> Sent from my iPhone
>=20
>>> On May 6, 2021, at 10:03 AM, Alan Seigrist <healey.nut@gmail.com> wrote:=
>>>=20
>> =EF=BB=BF
>> I have found that having the header and miniature heat shield to be ceram=
ic coated makes a huge difference in the engine bay but then transfers heat t=
o the exhaust, so it=E2=80=99s only good if you have an SS exhaust system an=
d then you need to insulate around the pump as Michael has said. i just wra=
p header tape around the exhaust pipe in that area and that is also effectiv=
e,
>>=20
>>> On Thu, 6 May 2021 at 9:52 PM, Michael Salter <michaelsalter@gmail.com> w=
rote:
>>> Hi Ken, yes I think everyone with a 100 has encountered fuel delivery is=
sues with modern fuels. Methanol lowers the boiling point of petrol to a poi=
nt where it becomes a problem.=20
>>> With the 100 there are 2 distinct issues.=20
>>>=20
>>> Firstly, because the fuel pump and its associated lines are directly abo=
ve the exhaust pipe, hot air heats them. The fuel in the suction side of the=
pump has, effectively, a lower boiling point than it would at atmospheric p=
ressure. This fuel tends to boil if there isn't sufficient air circulation t=
o keep the pump and lines cooled, as occurs while stopped in traffic on a ho=
t day. True vapor lock occurs because the pump will not pump sufficient vol=
ume of vapour to exceed the rate of its production by the boiling process.
>>>=20
>>> Secondly the carburetor float chambers and the small fuel passage to the=
jet are very close to the exhaust manifold.=20
>>> The manifold radiates lots of heat which heats them. Again when the car i=
s moving at a reasonable pace the incoming air through the grille and around=
the radiator is sufficient to maintain the carburetor at a low enough tempe=
rature to prohibit boiling but, again when stopped in traffic this doesn't h=
appen.
>>>=20
>>> I have managed to eliminate the first problem by installing a insulating=
sleeve from a modern car's AC hose over the fuel line from the tank to the p=
ump.
>>>=20
>>> For the second I have made small heatshields from 24 gauge galvanized st=
eel to shield as much as possible of the carburetors from the radiated heat.=
This has helped considerably but not completely eliminated the problem.=20
>>>=20
>>> For the most part neither of these modifications are visible and I have f=
ound that fuel delivery issues, although not completely eliminated, are mana=
geable.=20
>>> I am considering installing a small blower and duct sourcing air from be=
hind the grille to see how much difference that makes but if course that wil=
l be visible.
>>> Hope that helps, others may have found better solutions.=20
>>>=20
>>> M
>>>=20
>>>=20
>>>> On Mon., May 3, 2021, 2:58 p.m. Ken Fleming, <ahmg@aol.com> wrote:
>>>> Michael , I thought you maybe have experience this ans have a solution .=
On my Bn1 which is M spec with carbs, advance distributed, LeMans Cam and P=
istons has always suffered from what I call vapor lock of gas. Especially in=
hot weather .=20
>>>> I am assuming the heat is from
>>>> Manifold and it placement near carbs or fuel pump/ battery near exhaust=
play a role but I could be wrong . I have asked other owners and they seem m=
ost of them not to have same problem. I do have a heat sheild added with lit=
tle result.
>>>> I am at a loss as to
>>>> What to do
>>>> Next , but have you experienced this and have any suggestions. Are my a=
ssumptions
>>>> Correct on heat causing the issue. Could today=E2=80=99s quality if ga=
s be a issue?
>>>> I recall reading this was a common issue for 100=E2=80=99s to have vapo=
r issues.=20
>>>> Ken
>>>>=20
>>>> Sent from my iPhone
>>> _______________________________________________
>>> Support Team.Net http://www.team.net/donate.html
>>> Suggested annual donation $12.75
>>>=20
>>> Archive: http://www.team.net/pipermail/healeys http://autox.team.net/arc=
hive
>>>=20
>>> Healeys@autox.team.net
>>> http://autox.team.net/mailman/listinfo/healeys
>>>=20
>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/healey=
.nut@gmail.com
>>>=20
>> _______________________________________________
>> Support Team.Net http://www.team.net/donate.html
>> Suggested annual donation $12.75
>>=20
>> Archive: http://www.team.net/pipermail/healeys http://autox.team.net/arch=
ive
>>=20
>> Healeys@autox.team.net
>> http://autox.team.net/mailman/listinfo/healeys
>>=20
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/fsufan1=
952@yahoo.com
>>=20
--Apple-Mail-29480B5B-EA86-4AAB-A3BC-2CFCD2708209
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">Oh and I only use Ethanol free gas . Around=
high 90s octane.<div> Don <br><br><div dir=3D=
"ltr">Sent from my iPhone</div><div dir=3D"ltr"><br><blockquote type=3D"cite=
">On May 6, 2021, at 11:13 AM, fsufan1952@yahoo.com wrote:<br><br></blockquo=
te></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF<meta http-equi=
v=3D"content-type" content=3D"text/html; charset=3Dutf-8">Hi All , <div=
> I have a 67 BJ-8 . And when I did a frame off restorati=
on I lived in Mass. Well me and my Healey are now living in central Fl=
orida. And my mods are a set of headers from Dennis Welch along with his mat=
ching 2 inch exhaust system. I had the headers ceramic coated and I wrapped t=
hem with header insulation tape . I completely used fuel line insulation wra=
p from mid way on the car all the way up to the carbs . I installed a neat s=
et of fuel bowl insulated coozies from Joe Coutu. Along with a new radiator f=
rom AH Spares and a electronic fan mounted to it . My next mod was a new int=
ake manifold , also from AH Spares , there newly designed system with round 2=
inch ports . I also had this ceramic coated . I still install the original H=
ealey heat shield . I installed an electronic ignition system and a new SU e=
lectronic fuel pump . </div><div> Well running aroun=
d Florida it runs strong . But every time I come to a stop light , then pull=
away I always have vapor lock problems. Stopping at a stop light I get no a=
ir flow around the carbs . Looking back installing those fender rally vents I=
=E2=80=99m sure would help getting rid of some of the engine heat . None of t=
hese mods have stopped my vapor lock problems. My next attempt at solv=
ing the fuel vapor problem is I just insalled a cooling fan from Chill Out ,=
a company that specializes in race car cooling systems. It=E2=80=99s a 3 in=
ch fan about the size of a beer can . I mounted it next to my brake reservoi=
r with ducting on the intake side pulling in air from in front of the radiat=
or, then duct work on the output side blowing onto the carbs . Unfortu=
nately I ran out of time to test it as I=E2=80=99m now back in Mass for 3 we=
eks. When I get back to Florida I=E2=80=99m looking forward to =F0=9F=A4=
=9E seeing if this helps . I can supply pictures of all the above mods if an=
yone is interested. </div><div> Wish me Luck =F0=9F=91=8D=F0=
=9F=8F=BB Don</div><div><br><div dir=3D"ltr">Sent from my iPhone</div=
><div dir=3D"ltr"><br><blockquote type=3D"cite">On May 6, 2021, at 10:03 AM,=
Alan Seigrist <healey.nut@gmail.com> wrote:<br><br></blockquote></div=
><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF<div dir=3D"auto">I hav=
e found that having the header and miniature heat shield to be ceramic coate=
d makes a huge difference in the engine bay but then transfers heat to the e=
xhaust, so it=E2=80=99s only good if you have an SS exhaust system and then y=
ou need to insulate around the pump as Michael has said. i just wrap h=
eader tape around the exhaust pipe in that area and that is also effective,<=
/div><div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_att=
r">On Thu, 6 May 2021 at 9:52 PM, Michael Salter <<a href=3D"mailto:micha=
elsalter@gmail.com">michaelsalter@gmail.com</a>> wrote:<br></div><blockqu=
ote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc so=
lid;padding-left:1ex"><div dir=3D"auto">Hi Ken, yes I think everyone with a 1=
00 has encountered fuel delivery issues with modern fuels. Methanol lowers t=
he boiling point of petrol to a point where it becomes a problem. <div d=
ir=3D"auto">With the 100 there are 2 distinct issues. </div><div dir=3D=
"auto"><br></div><div dir=3D"auto">Firstly, because the fuel pump and its as=
sociated lines are directly above the exhaust pipe, hot air heats them. The f=
uel in the suction side of the pump has, effectively, a lower boiling point t=
han it would at atmospheric pressure. This fuel tends to boil if there isn't=
sufficient air circulation to keep the pump and lines cooled, as occurs whi=
le stopped in traffic on a hot day. True vapor lock occurs because the pump w=
ill not pump sufficient volume of vapour to exceed the rate of its pro=
duction by the boiling process.</div><div dir=3D"auto"><br></div><div dir=3D=
"auto">Secondly the carburetor float chambers and the small fuel passage to t=
he jet are very close to the exhaust manifold. </div><div dir=3D"auto">=
The manifold radiates lots of heat which heats them. Again when the car is m=
oving at a reasonable pace the incoming air through the grille and around th=
e radiator is sufficient to maintain the carburetor at a low enough temperat=
ure to prohibit boiling but, again when stopped in traffic this doesn't happ=
en.</div><div dir=3D"auto"><br></div><div dir=3D"auto">I have managed to eli=
minate the first problem by installing a insulating sleeve from a modern car=
's AC hose over the fuel line from the tank to the pump.</div><div dir=3D"au=
to"><br></div><div dir=3D"auto">For the second I have made small heatshields=
from 24 gauge galvanized steel to shield as much as possible of the carbure=
tors from the radiated heat. This has helped considerably but not completely=
eliminated the problem. </div><div dir=3D"auto"><br></div><div dir=3D"=
auto">For the most part neither of these modifications are visible and I hav=
e found that fuel delivery issues, although not completely eliminated, are m=
anageable. </div><div dir=3D"auto">I am considering installing a small b=
lower and duct sourcing air from behind the grille to see how much differenc=
e that makes but if course that will be visible.</div><div dir=3D"auto">Hope=
that helps, others may have found better solutions. </div><div dir=3D"=
auto"><br></div><div dir=3D"auto">M</div><div dir=3D"auto"><br></div></div><=
br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon.,=
May 3, 2021, 2:58 p.m. Ken Fleming, <<a href=3D"mailto:ahmg@aol.com"; tar=
get=3D"_blank">ahmg@aol.com</a>> wrote:<br></div><blockquote class=3D"gma=
il_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left=
:1ex">Michael , I thought you maybe have experience this ans have a solution=
. On my Bn1 which is M spec with carbs, advance distributed, LeMans Cam and=
Pistons has always suffered from what I call vapor lock of gas. Especially i=
n hot weather . <br>
I am assuming the heat is from<br>
Manifold and it placement near carbs or fuel pump/ battery near exhaust play=
a role but I could be wrong . I have asked other owners and they seem most o=
f them not to have same problem. I do have a heat sheild added with little r=
esult.<br>
I am at a loss as to<br>
What to do<br>
Next , but have you experienced this and have any suggestions. Are my assump=
tions<br>
Correct on heat causing the issue. Could today=E2=80=99s quality if ga=
s be a issue?<br>
I recall reading this was a common issue for 100=E2=80=99s to have vapor iss=
ues. <br>
Ken<br>
<br>
Sent from my iPhone<br>
</blockquote></div>
_______________________________________________<br>
er" target=3D"_blank">http://www.team.net/donate.html</a><br>
<br>
Archive: <a href=3D"http://www.team.net/pipermail/healeys"; rel=3D"noreferrer=
" target=3D"_blank">http://www.team.net/pipermail/healeys</a> <a href=3D"htt=
p://autox.team.net/archive" rel=3D"noreferrer" target=3D"_blank">http://auto=
x.team.net/archive</a><br>
<br>
<a href=3D"mailto:Healeys@autox.team.net"; target=3D"_blank">Healeys@autox.te=
am.net</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>
/healey.nut@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.tea=
m.net/mailman/options/healeys/healey.nut@gmail.com</a><br>
<br>
</blockquote></div></div>
<span>_______________________________________________</span><br><span>Suppor=
t Team.Net http://www.team.net/donate.html</span><br><span>Suggested annual d=
onation $12.75</span><br><span></span><br><span>Archive: http://www.te=
am.net/pipermail/healeys http://autox.team.net/archive</span><br><span></spa=
n><br><span>Healeys@autox.team.net</span><br><span>http://autox.team.net/mai=
lman/listinfo/healeys</span><br><span></span><br><span>Unsubscribe/Manage: h=
ttp://autox.team.net/mailman/options/healeys/fsufan1952@yahoo.com</span><br>=
<span></span><br></div></blockquote></div></div></blockquote></div></body></=
html>=
--Apple-Mail-29480B5B-EA86-4AAB-A3BC-2CFCD2708209--
--===============0160125714423860769==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
--===============0160125714423860769==--
|