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Just a random thought...The community college I lived near and took classe=
s at had an Automotive Tech program.=C2=A0 And a Chassis Dyno ..Maybe worth=
a shot if available
Jim
On Sunday, August 23, 2020, 8:29:24 AM PDT, Roger Grace via Healeys <he=
aleys@autox.team.net> wrote: =20
=20
Thank you.
Noise is independent of engine; it is most noticeable with engine off and i=
n neutral and coasting.
rg
----- Original Message -----
From: David Porter <frogeye@porterscustom.com>
To: Roger Grace <roggrace@telus.net>, David Nock <healeydoc@gmail.com>
Cc: healeys@autox team. net <healeys@autox.team.net>
Sent: Sat, 22 Aug 2020 20:54:13 -0600 (MDT)
Subject: Re: [Healeys] Mystery noise - Update
Well, then it is rotational for sure, not a bearing that is failing but per=
haps already failed, perhaps allowing the O/D annulus to scrape the surroun=
ding housing...though it did not sound like steel on aluminum to me. You ha=
ve moved the noise from rear to midway.. perhaps if you haven't, check for =
a failed motor mount and the crank pulley scraping the cross member??=C2=A0=
DP
On August 22, 2020, at 6:46 PM, Roger Grace via Healeys <healeys@autox.team=
.net> wrote:
Not a lot of progress...
Brake cable is well clear of propshaft and securely clipped.
Universal U joint/spline phasing is correct.
Been doing lots of listening with stethoscope.
With propshaft disconnected, am able hear noise in 2nd or 4th when slipping=
clutch (reduces speed)
Assume is the same noise and less distinct because of the engine noise.
Not nearly as distinct as when shaft is connected and rear wheels freewheel=
ing in neutral and engine off.
Loudest area seems to be rear GB casing near rear bearing.
This still does not sound like a bearing to my ears ?
Plan to try to get a 2nd expert opinion with younger ears !
rg
----- Original Message -----
From: David Nock <healeydoc@gmail.com>
To: Roger Grace <roggrace@telus.net>, 'healeylist' <healeys@autox.team.net>
Sent: Thu, 20 Aug 2020 12:47:51 -0600 (MDT)
Subject: Re: [Healeys] Mystery noise
Drive shaft hitting the handbrake cable when the car is jacked up. Probably=
=20
will go away when sitting on the ground.=C2=A0=C2=A0David=20
Nock
healeydoc@sbcglobal.net
209 948=20
8767
www.britishcarspecialists.com
Help us have our Founder Norman=20
Nock inducteed into the=20
British Sportscar Hall of Fame, You can vote for=20
your favorites=20
by visiting the site=20
at.
www.britishsportscarhalloffame.org
=C2=A0From:Roger Grace via Healeys
Sent: Thursday, August 20, 2020 10:27 AMTo:'healeylist'
Subject: [Healeys] Mystery noise=C2=A0AH people - fighting a noise in my BJ=
8 that may or may not be=20
serious.Reluctant to tear out the tranny unnecessarily and then to find it =
was=20
something simple !
=C2=A0Notice it at low speed (probably exists at driving speed but too much=
wind=20
and engine=20
noise) if shift to neutral and cut ignition to minimize engine=20
and exhaust noise.Noise is pulsating - like a tire with a bad spot but seem=
s to be at=20
prop shaft speed.=C2=A0At first thought that it was at wheel speed and from=
R side.So changed out the R wheel bearing.No improvement=C2=A0Then while l=
ooking below noted that universals had some play.So changed out both univer=
sals.Rear brakes not dragging and no binding of wheels.No improvement.=C2=
=A0Did listening on hoist with others listening too. Consensus was that the=
re=20
was a noise at rear OD area as well as the pulsating one.=C2=A0So pulled an=
nulus in situ and replaced both rear bearings. Quieter but=20
still the pulsating noise while coasting in N.=C2=A0Sound file enclosed is =
a road test from about 15 MPH then shift to N and=20
cut engine. Tunnel cover off.
=C2=A0Able to replicate noise with engine on axle stands but not by turning=
a=20
rear wheel by hand or with an e motor.
=C2=A0Noise does appear to come from transmission.
=C2=A0To verify is not diff removed one of the rear seats and noise doesn't=
=20
appear to be coming from diff area.
Disconnecting prop shaft to isolate diff not possible as need the inertia=
=20
of the rear wheels to produce the pulsing.=C2=A0About 5k miles ago I change=
d out the larger OD front bearing (sourced from=20
Moss ... ?) in the OD.OD works fine and transmission shifts and works OK wi=
thout unusual=20
noises.=C2=A0The pulsating/cyclical nature of the noise baffles me and not =
consistent=20
with a bearing failure ?=C2=A0Given that it occurs in neutral with no gears=
meshing it surely is not a=20
bad gear tooth etc.
OD not engaged so it is locked so not likely there.
Removed gearbox top cover and did inspection - nothing obvious.
So to my mind this only leaves the GB rear bearing ?Or maybe a broken circl=
ip or thrust washer and probably on main shaft=20
external to gearbox ?
or half shaft ?
=C2=A0Any comments/thoughts appreciated from the more experienced=20
among us.=20
Tkxrg
_______________________________________________
$12.75
Archive: http://www.team.net/pipermail/healeys=20
http://autox.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
http://autox.team.net/mailman/options/healeys/healeydoc@gmail.com
_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archiv=
e
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
oo.com
=20
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<html><head></head><body><div class=3D"ydp6a9f7480yahoo-style-wrap" style=
=3D"font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 1=
3px;"><div></div>
<div dir=3D"ltr" data-setdir=3D"false">Just a random thought...The =
community college I lived near and took classes at had an Automotive Tech p=
rogram. And a Chassis Dyno ..Maybe worth a shot if available</div><di=
v dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=
=3D"false">Jim<br></div><div><br></div>
=20
</div><div id=3D"ydp49c8ae22yahoo_quoted_8528344392" class=3D"ydp49=
c8ae22yahoo_quoted">
<div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
=20
<div>
On Sunday, August 23, 2020, 8:29:24 AM PDT, Roger Grace=
via Healeys <healeys@autox.team.net> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div id=3D"ydp49c8ae22yiv3328882544"><div><div>Thank y=
ou.<br></div><div>Noise is independent of engine; it is most noticeable wit=
h engine off and in neutral and coasting.<br></div><div>rg<br></div><div><b=
r></div><div>----- Original Message -----<br>From: David Porter <frogeye=
@porterscustom.com><br>To: Roger Grace <roggrace@telus.net>, David=
Nock <healeydoc@gmail.com><br>Cc: healeys@autox team. net <healey=
s@autox.team.net><br>Sent: Sat, 22 Aug 2020 20:54:13 -0600 (MDT)<br>Subj=
ect: Re: [Healeys] Mystery noise - Update<br></div><div><br></div><p dir=3D=
"ltr">Well, then it is rotational for sure, not a bearing that is failing b=
ut perhaps already failed, perhaps allowing the O/D annulus to scrape the s=
urrounding housing...though it did not sound like steel on aluminum to me. =
You have moved the noise from rear to midway.. perhaps if you haven't, chec=
k for a failed motor mount and the crank pulley scraping the cross member??=
DP</p><div><span style=3D"font-family:Calibri;"><span style=3D"font-=
family:Calibri;"><br></span></span></div><div><br></div><div><span style=3D=
"font-family:Calibri;"><span style=3D"font-family:Calibri;">On August 22, 2=
020, at 6:46 PM, Roger Grace via Healeys <healeys@autox.team.net> wro=
te:<br></span></span></div><div><br></div><div><div>Not a lot of progress..=
.<br></div><div><br></div><div>Brake cable is well clear of propshaft and s=
ecurely clipped.</div><div><br></div><div>Universal U joint/spline phasing =
is correct.</div><div><br></div><div>Been doing lots of listening with stet=
hoscope.<br></div><div>With propshaft disconnected, am able hear noise in 2=
nd or 4th when slipping clutch (reduces speed)<br></div><div>Assume is the =
same noise and less distinct because of the engine noise.<br></div><div>Not=
nearly as distinct as when shaft is connected and rear wheels freewheeling=
in neutral and engine off.<br></div><div>Loudest area seems to be rear GB =
casing near rear bearing.<br></div><div>This still does not sound like a be=
aring to my ears ?<br></div><div><br></div><div>Plan to try to get a 2nd ex=
pert opinion with younger ears !<br></div><div><br></div><div>rg</div></div=
><div><br></div><div>----- Original Message -----<br>From: David Nock <<=
a href=3D"mailto:healeydoc@gmail.com"; rel=3D"nofollow" target=3D"_blank">he=
aleydoc@gmail.com</a>><br>To: Roger Grace <<a href=3D"mailto:roggrace=
@telus.net" rel=3D"nofollow" target=3D"_blank">roggrace@telus.net</a>>, =
'healeylist' <<a href=3D"mailto:healeys@autox.team.net"; rel=3D"nofollow"=
target=3D"_blank">healeys@autox.team.net</a>><br>Sent: Thu, 20 Aug 2020=
12:47:51 -0600 (MDT)<br>Subject: Re: [Healeys] Mystery noise<br></div><div=
><br></div><div dir=3D"ltr"><div style=3D"font-size:12pt;font-family:'Centu=
ry';color:#000000;"><div>Drive shaft hitting the handbrake cable when the c=
ar is jacked up. Probably <br>will go away when sitting on the ground.</div=
><div> </div><div> </div><div style=3D"font-size:12pt;font-family=
:'Century';color:#000000;">David <br>Nock<br><a href=3D"mailto:healeydoc@sb=
cglobal.net" rel=3D"nofollow" target=3D"_blank">healeydoc@sbcglobal.net</a>=
<br>209 948 <br>8767<br><a href=3D"http://www.britishcarspecialists.com"; re=
l=3D"nofollow" target=3D"_blank">www.britishcarspecialists.com</a><br><div>=
<br></div>Help us have our Founder Norman <br>Nock inducteed into the <br>B=
ritish Sportscar Hall of Fame, You can vote for <br>your favorites <br>by v=
isiting the site <br>at.<br><a href=3D"http://www.britishsportscarhalloffam=
e.org" rel=3D"nofollow" target=3D"_blank">www.britishsportscarhalloffame.or=
g</a><br></div><div style=3D"font-size: small; text-decoration-line: none; =
text-decoration-style: solid; text-decoration-color: currentcolor; font-fam=
ily: Calibri; font-weight: normal; color: rgb(0, 0, 0); font-style: normal;=
display: inline;"><div style=3D"font-style: normal; font-weight: normal; f=
ont-stretch: normal; font-size: 10pt; line-height: normal; font-family: tah=
oma; font-size-adjust: none;"><div> </div><div style=3D"background-col=
or: rgb(245, 245, 245); background-repeat: repeat; background-attachment: s=
croll; background-image: none; background-size: auto;"><div><b>From:</b><a =
title=3D"healeys@autox.team.net">Roger Grace via Healeys</a><br></div><div>=
<b>Sent:</b> Thursday, August 20, 2020 10:27 AM</div><div><b>To:</b><a titl=
e=3D"healeys@autox.team.net">'healeylist'</a><br></div><div><b>Subject:</b>=
[Healeys] Mystery noise</div></div></div><div> </div></div><div style=
=3D"font-size: small; text-decoration-line: none; text-decoration-style: so=
lid; text-decoration-color: currentcolor; font-family: Calibri; font-weight=
: normal; color: rgb(0, 0, 0); font-style: normal; display: inline;"><div><=
div>AH people - fighting a noise in my BJ8 that may or may not be <br>serio=
us.</div><div>Reluctant to tear out the tranny unnecessarily and then to fi=
nd it was <br>something simple !<br></div><div> </div><div>Notice it a=
t low speed (probably exists at driving speed but too much wind <br>and eng=
ine <br>noise) if shift to neutral and cut ignition to minimize engine <br>=
and exhaust noise.</div><div>Noise is pulsating - like a tire with a bad sp=
ot but seems to be at <br><div><br></div>prop shaft speed.</div><div> =
</div><div>At first thought that it was at wheel speed and from R side.</di=
v><div>So changed out the R wheel bearing.</div><div>No improvement</div><d=
iv> </div><div>Then while looking below noted that universals had some=
play.</div><div>So changed out both universals.</div><div>Rear brakes not =
dragging and no binding of wheels.</div><div>No improvement.</div><div>&nbs=
p;</div><div>Did listening on hoist with others listening too. Consensus wa=
s that there <br>was a noise at rear OD area as well as the pulsating one.<=
/div><div> </div><div>So pulled annulus in situ and replaced both rear=
bearings. Quieter but <br>still the pulsating noise while coasting in N.</=
div><div> </div><div>Sound file enclosed is a road test from about 15 =
MPH then shift to N and <br>cut engine. Tunnel cover off.<br></div><div>&nb=
sp;</div><div>Able to replicate noise with engine on axle stands but not by=
turning a <br>rear wheel by hand or with an e motor.<br></div><div> <=
/div><div>Noise does appear to come from transmission.<br></div><div><div>&=
nbsp;</div><div>To verify is not diff removed one of the rear seats and noi=
se doesn't <br>appear to be coming from diff area.<br></div><div>Disconnect=
ing prop shaft to isolate diff not possible as need the inertia <br>of the =
rear wheels to produce the pulsing.</div></div><div> </div><div>About =
5k miles ago I changed out the larger OD front bearing (sourced from <br><d=
iv><br></div>Moss ... ?) in the OD.</div><div>OD works fine and transmissio=
n shifts and works OK without unusual <br><div><br></div>noises.</div><div>=
</div><div>The pulsating/cyclical nature of the noise baffles me and =
not consistent <br><div><br></div>with a bearing failure ?</div><div> =
</div><div>Given that it occurs in neutral with no gears meshing it surely =
is not a <br>bad gear tooth etc.<br></div><div>OD not engaged so it is lock=
ed so not likely there.<br></div><div>Removed gearbox top cover and did ins=
pection - nothing obvious.<br></div><div>So to my mind this only leaves the=
GB rear bearing ?</div><div>Or maybe a broken circlip or thrust washer and=
probably on main shaft <br>external to gearbox ?<br></div><div>or half sha=
ft ?<br></div><div> </div>Any comments/thoughts appreciated from the m=
ore experienced <br>among us. <br><div>Tkx</div><div>rg<br></div></div><hr>=
<p><br>_______________________________________________<br>Support <a href=
=3D"http://Team.Net"; rel=3D"nofollow" target=3D"_blank">Team.Net</a><br><a =
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