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At one time I had a plastic flex fan on my 100. Initially the car's
cooling ability seemed better but after a year or two i began to experience
more problems coping with heat, esp. in traffic. I had already fit the
usual upgrades (new radiator, etc) and so I was a bit baffled.
Eventually I removed the fan and when I placed it on a flat surface I saw
that it had taken a concave set (when viewed from the front), I assume from
all the flexing--and no doubt this had degraded the fan's ability to pull
air through the rad.
I discarded the plastic fan and put on a metal flex fan. To be sure it is
noisier but it does a much better job.
Best to all for 23015--Michael Oritt
On Wed, Dec 31, 2014 at 12:08 PM, Roger Grace <roggrace@telus.net> wrote:
> Steve,
> Thank you - you have good history and records.
> I think that my fan is different to the construction you describe ??; it
> has
> a one piece metal spider and each blade is riveted with 5 rivets to it for
> about 1/2 of the length of the blade.
> See enclosed pix. and hopefully is not the Moss/China one with all the
> problems. ?? The blade spacing is symmetrical so it is not the Texas cooler
> one.
>
> Your input appreciated.
>
> I am of the opinion that we really only need the help of a fan in slow
> traffic and particularly after the engine has been working (increased
> losses) after a run at some speed and the oil is really hot. Ideally I
> would
> like to remove it for quietness and to regain a few HP when cruising and
> replace with an electric one; however this seems to be a tight fiddly
> conversion ...
> Anyone with experience doing this...??
> rg
>
>
> -----Original Message----- From: BJ8Healeys
> Sent: Tuesday, December 30, 2014 1:37 PM
> To: healeys@autox.team.net
>
> Subject: Re: [Healeys] Fan
>
> Roger, at the root of the blades where they transition to the hub there are
> semi-circular cutouts. The blades flex and the fatigue cracks start at
> those cutouts. The first thing to notice would be paint flaking off in
> that
> area.
> Moss actually replaced my first 6-blade fan that failed with another one
> just like it. I guess they got some other subsequent reports of failures
> and sent out a bulletin to remove the fans and return them. When I removed
> the second fan, I saw the chips in the paint exactly where the first blades
> had failed.
> The history of the fans in my car was as follows. Numbers in parentheses
> are the odometer readings at each time:
>
> 3 May 95 (31590) Installed 6-blade metal fan
> 16 Jan 96 (34103) Failed 2 blades, damaged radiator header tank, knocked
> fan guard loose and put a 2" gash in it (retained by radiator shroud).
> 5 Mar 96 (34105) Installed replacement 6-blade metal fan
> 14 Feb 97 (35660) Removed second fan and returned to Moss. Noted fatigue
> cracks beginning in root of all blades (paint chips).
>
> As you can see, the fatigue cracks for the second fan were starting only
> 1500 miles after installation.
>
> Both fans were yellow 6-blade fans and I believe they were stamped "Made in
> China" (or perhaps it was on the box they came in).
>
> Steve Byers
> HBJ8L/36666
> BJ8 Registry
> AHCA Delegate at Large
> Havelock, NC USA
>
>
> -----Original Message-----
> From: Roger Grace [mailto:roggrace@telus.net]
> Sent: Tuesday, December 30, 2014 4:13 PM
> To: BJ8Healeys; healeys@autox.team.net
> Subject: Re: [Healeys] Fan
>
> I have a yellow, metal, 6 blade fan fitted to my car; origin and age
> unknown
> but suspect was fitted around 2004; just wondering if there are any tell
> tale signs to help identify it as one one the Moss/China culprits ??
> rg
>
>
> _______________________________________________
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>
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>
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Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"color:#3333ff">At on=
e time I had a plastic flex fan on my 100.=C2=A0 Initially the car's co=
oling ability seemed better but after a year or two i began to experience m=
ore problems coping with heat, esp. in traffic.=C2=A0 I had already fit the=
usual upgrades (new radiator, etc) and so I was a bit baffled.</div><div c=
lass=3D"gmail_default" style=3D"color:#3333ff"><br></div><div class=3D"gmai=
l_default" style=3D"color:#3333ff">Eventually I removed the fan and when I =
placed it on a flat surface I saw that it had taken a concave set (when vie=
wed from the front), I assume from all the flexing--and no doubt this had d=
egraded the fan's ability to pull air through the rad.</div><div class=
=3D"gmail_default" style=3D"color:#3333ff"><br></div><div class=3D"gmail_de=
fault" style=3D"color:#3333ff">I discarded the plastic fan and put on a met=
al flex fan.=C2=A0 To be sure it is noisier but it does a much better job.<=
/div><div class=3D"gmail_default" style=3D"color:#3333ff"><br></div><div cl=
ass=3D"gmail_default" style=3D"color:#3333ff">Best to all for 23015--Michae=
l Oritt</div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote=
">On Wed, Dec 31, 2014 at 12:08 PM, Roger Grace <span dir=3D"ltr"><<a hr=
ef=3D"mailto:roggrace@telus.net"; target=3D"_blank">roggrace@telus.net</a>&g=
t;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0=
.8ex;border-left:1px #ccc solid;padding-left:1ex">Steve,<br>
Thank you - you have good history and records.<br>
I think that my fan is different to the construction you describe ??; it ha=
s<br>
a one piece metal spider and each blade is riveted with 5 rivets to it for<=
br>
about 1/2 of the length of the blade.<br>
See enclosed pix. and hopefully is not the Moss/China one with all the<br>
problems. ?? The blade spacing is symmetrical so it is not the Texas cooler=
<br>
one.<br>
<br>
Your input appreciated.<br>
<br>
I am of the opinion that we really only need the help of a fan in slow<br>
traffic and particularly after the engine has been working (increased<br>
losses) after a run at some speed and the oil is really hot. Ideally I woul=
d<br>
like to remove it for quietness and to regain a few HP when cruising and<br=
>
replace with an electric one; however this seems to be a tight fiddly<br>
conversion ...<br>
Anyone with experience doing this...??<span class=3D""><br>
rg<br>
<br>
<br>
-----Original Message----- From: BJ8Healeys<br></span>
Sent: Tuesday, December 30, 2014 1:37 PM<br>
To: <a href=3D"mailto:healeys@autox.team.net"; target=3D"_blank">healeys@aut=
ox.team.net</a><div><div class=3D"h5"><br>
Subject: Re: [Healeys] Fan<br>
<br>
Roger, at the root of the blades where they transition to the hub there are=
<br>
semi-circular cutouts.=C2=A0 The blades flex and the fatigue cracks start a=
t<br>
those cutouts.=C2=A0 The first thing to notice would be paint flaking off i=
n that<br>
area.<br>
Moss actually replaced my first 6-blade fan that failed with another one<br=
>
just like it.=C2=A0 I guess they got some other subsequent reports of failu=
res<br>
and sent out a bulletin to remove the fans and return them.=C2=A0 When I re=
moved<br>
the second fan, I saw the chips in the paint exactly where the first blades=
<br>
had failed.<br>
The history of the fans in my car was as follows.=C2=A0 Numbers in parenthe=
ses<br>
are the odometer readings at each time:<br>
<br>
3 May 95=C2=A0 (31590)=C2=A0 Installed 6-blade metal fan<br>
16 Jan 96 (34103)=C2=A0 Failed 2 blades, damaged radiator header tank, knoc=
ked<br>
fan guard loose and put a 2" gash in it (retained by radiator shroud).=
<br>
5 Mar 96=C2=A0 (34105)=C2=A0 Installed replacement 6-blade metal fan<br>
14 Feb 97 (35660)=C2=A0 Removed second fan and returned to Moss.=C2=A0 Note=
d fatigue<br>
cracks beginning in root of all blades (paint chips).<br>
<br>
As you can see, the fatigue cracks for the second fan were starting only<br=
>
1500 miles after installation.<br>
<br>
Both fans were yellow 6-blade fans and I believe they were stamped "Ma=
de in<br>
China" (or perhaps it was on the box they came in).<br>
<br>
Steve Byers<br>
HBJ8L/36666<br>
BJ8 Registry<br>
AHCA Delegate at Large<br>
Havelock, NC USA<br>
<br>
<br>
-----Original Message-----<br>
From: Roger Grace [mailto:<a href=3D"mailto:roggrace@telus.net"; target=3D"_=
blank">roggrace@telus.net</a>]<br>
Sent: Tuesday, December 30, 2014 4:13 PM<br>
To: BJ8Healeys; <a href=3D"mailto:healeys@autox.team.net"; target=3D"_blank"=
>healeys@autox.team.net</a><br>
Subject: Re: [Healeys] Fan<br>
<br>
I have a yellow, metal, 6 blade fan fitted to my car; origin and age unknow=
n<br>
but suspect was fitted around 2004; just wondering if there are any tell<br=
>
tale signs to help identify it as one one the Moss/China culprits ??<br>
rg<br>
<br>
<br>
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nk">http://www.team.net/donate.<u></u>html</a><br>
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.team.net/forums</a><br>
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">http://autox.team.net/mailman/<u></u>listinfo/healeys</a><br>
<br>
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ce@telus.net" target=3D"_blank">http://autox.team.net/mailman/<u></u>option=
s/healeys/roggrace@<u></u>telus.net</a> <br>_______________________________=
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<br></blockquote></div><br></div>
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