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Hi Keith,
Can't help you much on #1
But regarding bearing clatter on startup my engine does the same thing as y=
ours on the first start of the day.=20
The engine has very few miles on it since I "freshened" it last winter.
I Plastigaged (spell check sure doesn't like that one) and the Glacier rod =
and main shells were all well within spec.=20
The oil pressure with VR1 20/50 is 55p.s.i. hot at 3000 RPM and the only ti=
me I hear the clatter is on the first start of the day.
I have removed and rechecked the original filter assembly and everything se=
ems to be fine.
BTW my MGBGT does exactly the same thing.
I suspect that it is not a problem but would like to hear others CONSTRUCTI=
VE input.
Michael S
BN1 #174
-----Original Message-----
From: "Oudesluys" <coudesluijs@chello.nl>
Sent: =E2=80=8E24/=E2=80=8E06/=E2=80=8E2015 3:50 a.m.
To: "healeys@autox.team.net" <healeys@autox.team.net>
Subject: Re: [Healeys] SU Needles & OIL ( or lack of )
Problem 1: How do you know the engine is running rich? Is it OK at idling (=
blue on the ColorTune: correct, orange: rich), are the plugs black after a =
long stretch?
Problem 2: What is your oil pressure at say 2500rpm and at idle when the en=
gine is really hot after a long high speed run. Is the oil pressure slightl=
y dipping when you blip the engine when hot?
If at start up after only one night you can actually hear the bearings rumb=
ling/rattling I would suspect worn bearings or, but unlikely, the wrong oil=
(way to thin) if you are lucky.
Other causes can be:
faulty/absent non return valve in the oil filter
small leak in the suction part of the oil pump circuit
Never start a cold engine using the throttle to rev it up immediately after=
firing. Let it idle until you read oil pressure. On my JH car it can take =
over 20 seconds before I have oil pressure.
Kees Oudesluijs
Keith Taylor schreef op 24-6-2015 om 8:36:
G'Day=20
Problem 1=20
I have a BN2 with Le Mans upgrades , 1 3/4 carbys with OA6 needles & the =
car is running very rich,
I have ordered weaker OA8 needles hoping to sort out this problem . However=
this car has flat top pistons hence much higher compression .
Am I going down the right road .
Problem 2
This car left standing overnight ,on startup has a severe bearing rattle , =
my long time mechanic ( retired, read old ex BMC man) is of the opinion=20
that the spin off filter non-return is failing The oil release valve seems =
to be in good condition. Startup now is to crank over without starting
to get oil pressure up then fire up , Subsequent startups are not a proble=
m
Keith Taylor
Southern Highlands OZ
BN1
BN2
=20
_______________________________________________
Archive: http://www.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
js@chello.nl
=20
Geen virus gevonden in dit bericht.
Gecontroleerd door AVG - www.avg.com
Versie: 2015.0.6030 / Virusdatabase: 4365/10087 - datum van uitgifte: 06/23=
/15=
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<html><head>=0A=
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8=
">=0A=
</head>=0A=
<body text=3D"#000000" bgcolor=3D"#ffffff"><div><div style=3D"font-family=
: Calibri,sans-serif; font-size: 11pt;">Hi Keith,<br>Can't help you much on=
#1<br>But regarding bearing clatter on startup my engine does the same thi=
ng as yours on the first start of the day. <br>The engine has very few mile=
s on it since I "freshened" it last winter.<br>I Plastigaged (spell check s=
ure doesn't like that one) and the Glacier rod and main shells were all wel=
l within spec. <br>The oil pressure with VR1 20/50 is 55p.s.i. hot at 3000 =
RPM and the only time I hear the clatter is on the first start of the day.<=
br>I have removed and rechecked the original filter assembly and everything=
seems to be fine.<br>BTW my MGBGT does exactly the same thing.<br>I suspec=
t that it is not a problem but would like to hear others CONSTRUCTIVE input=
.<br>Michael S<br>BN1 #174<br><br></div></div><div dir=3D"ltr"><hr><span st=
yle=3D"font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;=
">From: </span><span style=3D"font-family: Calibri,sans-serif; font-size: 1=
1pt;"><a href=3D"mailto:coudesluijs@chello.nl";>Oudesluys</a></span><br><spa=
n style=3D"font-family: Calibri,sans-serif; font-size: 11pt; font-weight: b=
old;">Sent: </span><span style=3D"font-family: Calibri,sans-serif; font-siz=
e: 11pt;">=E2=80=8E24/=E2=80=8E06/=E2=80=8E2015 3:50 a.m.</span><br><span s=
tyle=3D"font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold=
;">To: </span><span style=3D"font-family: Calibri,sans-serif; font-size: 11=
pt;"><a href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a></=
span><br><span style=3D"font-family: Calibri,sans-serif; font-size: 11pt; f=
ont-weight: bold;">Subject: </span><span style=3D"font-family: Calibri,sans=
-serif; font-size: 11pt;">Re: [Healeys] SU Needles & OIL ( or lack of )=
</span><br><br></div>=0A=
<div class=3D"moz-cite-prefix">Problem 1: How do you know the engine=0A=
is running rich? Is it OK at idling (blue on the ColorTune:=0A=
correct, orange: rich), are the plugs black after a long stretch?<br>=
=0A=
<br>=0A=
Problem 2: What is your oil pressure at say 2500rpm and at idle=0A=
when the engine is really hot after a long high speed run. Is the=0A=
oil pressure slightly dipping when you blip the engine when hot?<br>=
=0A=
<br>=0A=
If at start up after only one night you can actually hear the=0A=
bearings rumbling/rattling I would suspect worn bearings or, but=0A=
unlikely, the wrong oil (way to thin) if you are lucky.<br>=0A=
Other causes can be:<br>=0A=
faulty/absent non return valve in the oil filter<br>=0A=
small leak in the suction part of the oil pump circuit<br>=0A=
<br>=0A=
Never start a cold engine using the throttle to rev it up=0A=
immediately after firing. Let it idle until you read oil pressure.=0A=
On my JH car it can take over 20 seconds before I have oil=0A=
pressure.<br>=0A=
<br>=0A=
Kees Oudesluijs<br>=0A=
<br>=0A=
<br>=0A=
Keith Taylor schreef op 24-6-2015 om 8:36:<br>=0A=
</div>=0A=
<blockquote cite=3D"mid:CAJBOvRTtFpD6viYFifpoVoqAnf2qXQ-Fkk+C6OKVBPSwZy=
FHDQ@mail.gmail.com" type=3D"cite">=0A=
<meta http-equiv=3D"Context-Type" content=3D"text/html; charset=3DUTF=
-8">=0A=
<div dir=3D"ltr">=0A=
<div>G'Day </div>=0A=
<div><br>=0A=
</div>=0A=
<div>Problem 1 </div>=0A=
<div><br>=0A=
</div>=0A=
<div> I have a BN2 with Le Mans upgrades , 1 3/4 carbys =
with=0A=
OA6 needles & the car is running very rich,</div>=0A=
<div>I have ordered weaker OA8 needles hoping to sort out this=
=0A=
problem . However this car has flat top pistons hence much=0A=
higher compression .</div>=0A=
<div>Am I going down the right road .</div>=0A=
<div><br>=0A=
</div>=0A=
<div>Problem 2</div>=0A=
<div><br>=0A=
</div>=0A=
<div>This car left standing overnight ,on startup has a severe=0A=
bearing rattle , my long time mechanic ( retired, =
read old ex=0A=
BMC man) is of the opinion </div>=0A=
<div>that the spin off filter non-return is failing The oil=0A=
release valve seems to be in good condition. Startup now is to=0A=
crank over without starting</div>=0A=
<div> to get oil pressure up then fire up , Subsequent st=
artups=0A=
are not a problem</div>=0A=
<div><br>=0A=
</div>=0A=
<div>Keith Taylor</div>=0A=
<div>Southern Highlands OZ</div>=0A=
<div><br>=0A=
</div>=0A=
<div>BN1</div>=0A=
<div>BN2</div>=0A=
</div>=0A=
<br>=0A=
<fieldset class=3D"mimeAttachmentHeader"></fieldset>=0A=
<br>=0A=
<pre wrap=3D"">_______________________________________________=0A=
.net/donate.html">http://www.team.net/donate.html</a>=0A=
Archive: <a class=3D"moz-txt-link-freetext" href=3D"http://www.team.net/arc=
hive">http://www.team.net/archive</a>=0A=
Forums: <a class=3D"moz-txt-link-freetext" href=3D"http://www.team.net/foru=
ms">http://www.team.net/forums</a>=0A=
=0A=
<a class=3D"moz-txt-link-abbreviated" href=3D"mailto:Healeys@autox.team.net=
">Healeys@autox.team.net</a>=0A=
<a class=3D"moz-txt-link-freetext" href=3D"http://autox.team.net/mailman/li=
stinfo/healeys">http://autox.team.net/mailman/listinfo/healeys</a>=0A=
=0A=
.team.net/mailman/options/healeys/coudesluijs@chello.nl">http://autox.team.=
net/mailman/options/healeys/coudesluijs@chello.nl</a>=0A=
=0A=
</pre>=0A=
<br>=0A=
<fieldset class=3D"mimeAttachmentHeader"></fieldset>=0A=
<br>=0A=
<meta http-equiv=3D"Context-Type" content=3D"text/html; charset=3DUTF=
-8">=0A=
<p>Geen virus gevonden in dit bericht.<br>=0A=
Gecontroleerd door AVG - <a href=3D"http://www.avg.com"; moz-do-not-=
send=3D"true">www.avg.com</a><br>=0A=
Versie: 2015.0.6030 / Virusdatabase: 4365/10087 - datum van=0A=
uitgifte: 06/23/15</p>=0A=
</blockquote>=0A=
<br>=0A=
=0A=
=0A=
</body></html>=
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_______________________________________________
Archive: http://www.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
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