--===============2833656024611869753==
--00000000000070e9b305ad8a8239
The fact that you report :
"With propshaft disconnected, am able hear noise in 2nd or 4th when
slipping clutch (reduces speed)"
Is probably significant. I would be making every effort to determine that
3rd gear eliminates the noise completely before going any further.
Then carefully considering what is different in 2nd and 4th.
M
On Sun., Aug. 23, 2020, 5:41 a.m. John Harper via Healeys, <
healeys@autox.team.net> wrote:
> David
>
> Is your fan belt in good order. I had one that was 'lumpy' with some cross
> sections being different to others. I had great difficulty working out
> where the vibration came from. In the event it was the car that told me by
> fracturing the dynamo bracket
>
> On Sun, 23 Aug 2020 at 03:54, David Porter <frogeye@porterscustom.com>
> wrote:
>
>> Well, then it is rotational for sure, not a bearing that is failing but
>> perhaps already failed, perhaps allowing the O/D annulus to scrape the
>> surrounding 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,
>> check for a failed motor mount and the crank pulley scraping the cross
>> member?? 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
>> freewheeling 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
>> will go away when sitting on the ground.
>>
>>
>> David
>> Nock
>> healeydoc@sbcglobal.net
>> 209 948
>> 8767
>> www.britishcarspecialists.com
>>
>> Help us have our Founder Norman
>> Nock inducteed into the
>> British Sportscar Hall of Fame, You can vote for
>> your favorites
>> by visiting the site
>> at.
>> www.britishsportscarhalloffame.org
>>
>> *From:*Roger Grace via Healeys
>> *Sent:* Thursday, August 20, 2020 10:27 AM
>> *To:*'healeylist'
>> *Subject:* [Healeys] Mystery noise
>>
>> AH people - fighting a noise in my BJ8 that may or may not be
>> serious.
>> Reluctant to tear out the tranny unnecessarily and then to find it was
>> something simple !
>>
>> Notice it at low speed (probably exists at driving speed but too much
>> wind
>> and engine
>> noise) if shift to neutral and cut ignition to minimize engine
>> and exhaust noise.
>> Noise is pulsating - like a tire with a bad spot but seems to be at
>>
>> prop shaft speed.
>>
>> At first thought that it was at wheel speed and from R side.
>> So changed out the R wheel bearing.
>> No improvement
>>
>> Then while looking below noted that universals had some play.
>> So changed out both universals.
>> Rear brakes not dragging and no binding of wheels.
>> No improvement.
>>
>> Did listening on hoist with others listening too. Consensus was that
>> there
>> was a noise at rear OD area as well as the pulsating one.
>>
>> So pulled annulus in situ and replaced both rear bearings. Quieter but
>> still the pulsating noise while coasting in N.
>>
>> Sound file enclosed is a road test from about 15 MPH then shift to N and
>> cut engine. Tunnel cover off.
>>
>> Able to replicate noise with engine on axle stands but not by turning a
>> rear wheel by hand or with an e motor.
>>
>> Noise does appear to come from transmission.
>>
>> To verify is not diff removed one of the rear seats and noise doesn't
>> appear to be coming from diff area.
>> Disconnecting prop shaft to isolate diff not possible as need the inertia
>> of the rear wheels to produce the pulsing.
>>
>> About 5k miles ago I changed out the larger OD front bearing (sourced
>> from
>>
>> Moss ... ?) in the OD.
>> OD works fine and transmission shifts and works OK without unusual
>>
>> noises.
>>
>> The pulsating/cyclical nature of the noise baffles me and not consistent
>>
>> with a bearing failure ?
>>
>> Given that it occurs in neutral with no gears meshing it surely is not a
>> 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 circlip or thrust washer and probably on main shaft
>> external to gearbox ?
>> or half shaft ?
>>
>> Any comments/thoughts appreciated from the more experienced
>> among us.
>> Tkx
>> rg
>> ------------------------------
>>
>>
>> _______________________________________________
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>>
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>>
>>
>> _______________________________________________
>> Support Team.Net http://www.team.net/donate.html
>> Suggested annual donation $12.75
>>
>> Archive: http://www.team.net/pipermail/healeys
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>>
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>>
>>
>
> --
> Best wishes
>
> John Harper
>
> AHC UK 100 Register Secretary
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation $12.75
>
> Archive: http://www.team.net/pipermail/healeys
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>
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--00000000000070e9b305ad8a8239
Content-Transfer-Encoding: quoted-printable
<div dir=3D"auto">The fact that you report :=C2=A0<div dir=3D"auto">"<=
span style=3D"font-family:sans-serif;font-size:12.8px">With propshaft disco=
nnected, am able hear noise in 2nd or 4th when slipping clutch (reduces spe=
ed)"</span><div dir=3D"auto"><span style=3D"font-family:sans-serif;fon=
t-size:12.8px">Is probably significant.=C2=A0 I would be making every effor=
t to determine that 3rd gear eliminates the noise completely before going a=
ny further.</span></div><div dir=3D"auto"><span style=3D"font-family:sans-s=
erif;font-size:12.8px">Then carefully considering what is different in 2nd =
and 4th.</span></div><div dir=3D"auto"><span style=3D"font-family:sans-seri=
f;font-size:12.8px"><br></span></div><div dir=3D"auto"><span style=3D"font-=
family:sans-serif;font-size:12.8px">M</span></div><div dir=3D"auto"><span s=
tyle=3D"font-family:sans-serif;font-size:12.8px"><br></span></div></div></d=
iv><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On =
Sun., Aug. 23, 2020, 5:41 a.m. John Harper via Healeys, <<a href=3D"mail=
to:healeys@autox.team.net">healeys@autox.team.net</a>> wrote:<br></div><=
blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px=
#ccc solid;padding-left:1ex"><div dir=3D"ltr">David<div><br></div><div>Is =
your fan belt in good order.=C2=A0I had one that was 'lumpy' with s=
ome cross sections being different to others. I had great difficulty=C2=A0w=
orking out where the vibration came from. In the event it was the car that =
told me by fracturing=C2=A0the dynamo bracket</div></div><br><div class=3D"=
gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sun, 23 Aug 2020 at 0=
3:54, David Porter <<a href=3D"mailto:frogeye@porterscustom.com"; target=
=3D"_blank" rel=3D"noreferrer">frogeye@porterscustom.com</a>> wrote:<br>=
</div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;b=
order-left:1px solid rgb(204,204,204);padding-left:1ex"><font face=3D"Calib=
ri"><p dir=3D"ltr">Well, then it is rotational for sure, not a bearing that=
is failing but perhaps already failed, perhaps allowing the O/D annulus to=
scrape the surrounding housing...though it did not sound like steel on alu=
minum to me. You have moved the noise from rear to midway.. perhaps if you =
haven't, check for a failed motor mount and the crank pulley scraping t=
he cross member??=C2=A0 DP</p>
<br><br>On August 22, 2020, at 6:46 PM, Roger Grace via Healeys <<a href=
=3D"mailto:healeys@autox.team.net"; target=3D"_blank" rel=3D"noreferrer">hea=
leys@autox.team.net</a>> wrote:<br><br><br></font><div><div><div>Not a l=
ot of progress...<br></div><div><br></div><div>Brake cable is well clear of=
propshaft and securely clipped.</div><div><br></div><div>Universal U joint=
/spline phasing is correct.</div><div><br></div><div>Been doing lots of lis=
tening with stethoscope.<br></div><div>With propshaft disconnected, am able=
hear noise in 2nd or 4th when slipping clutch (reduces speed)<br></div><di=
v>Assume is the same noise and less distinct because of the engine noise.<b=
r></div><div>Not nearly as distinct as when shaft is connected and rear whe=
els freewheeling in neutral and engine off.<br></div><div>Loudest area seem=
s to be rear GB casing near rear bearing.<br></div><div>This still does not=
sound like a bearing to my ears ?<br></div><div><br></div><div>Plan to try=
to get a 2nd expert opinion with younger ears !<br></div><div><br></div><d=
iv>rg</div></div><div><br></div><div>----- Original Message -----<br>From: =
David Nock <<a href=3D"mailto:healeydoc@gmail.com"; target=3D"_blank" rel=
=3D"noreferrer">healeydoc@gmail.com</a>><br>To: Roger Grace <<a href=
=3D"mailto:roggrace@telus.net"; target=3D"_blank" rel=3D"noreferrer">roggrac=
e@telus.net</a>>, 'healeylist' <<a href=3D"mailto:healeys@aut=
ox.team.net" target=3D"_blank" rel=3D"noreferrer">healeys@autox.team.net</a=
>><br>Sent: Thu, 20 Aug 2020 12:47:51 -0600 (MDT)<br>Subject: Re: [Heale=
ys] Mystery noise<br></div><div><br></div><div dir=3D"ltr"><div style=3D"fo=
nt-size:12pt;font-family:Century;color:rgb(0,0,0)"><div>Drive shaft hitting=
the handbrake cable when the car is jacked up. Probably <br>will go away w=
hen sitting on the ground.</div><div>=C2=A0</div><div>=C2=A0</div><div styl=
e=3D"font-size:12pt;font-family:Century;color:rgb(0,0,0)">David <br>Nock<br=
><a href=3D"mailto:healeydoc@sbcglobal.net"; target=3D"_blank" rel=3D"norefe=
rrer">healeydoc@sbcglobal.net</a><br>209 948 <br>8767<br><a href=3D"http://=
www.britishcarspecialists.com" target=3D"_blank" rel=3D"noreferrer">www.bri=
tishcarspecialists.com</a><br><div><br></div>Help us have our Founder Norma=
n <br>Nock inducteed into the <br>British Sportscar Hall of Fame, You can v=
ote for <br>your favorites <br>by visiting the site <br>at.<br><a href=3D"h=
ttp://www.britishsportscarhalloffame.org" target=3D"_blank" rel=3D"noreferr=
er">www.britishsportscarhalloffame.org</a><br></div><div style=3D"font-size=
:small;text-decoration:none;font-family:Calibri;font-weight:normal;color:rg=
b(0,0,0);font-style:normal;display:inline"><div style=3D"font:10pt tahoma">=
<div>=C2=A0</div><div style=3D"background:rgb(245,245,245)"><div><b>From:</=
b><a title=3D"healeys@autox.team.net" rel=3D"noreferrer">Roger Grace via He=
aleys</a><br></div><div><b>Sent:</b> Thursday, August 20, 2020 10:27 AM</di=
v><div><b>To:</b><a title=3D"healeys@autox.team.net" rel=3D"noreferrer">=
9;healeylist'</a><br></div><div><b>Subject:</b> [Healeys] Mystery noise=
</div></div></div><div>=C2=A0</div></div><div style=3D"font-size:small;text=
-decoration:none;font-family:Calibri;font-weight:normal;color:rgb(0,0,0);fo=
nt-style:normal;display:inline"><div><div>AH people - fighting a noise in m=
y BJ8 that may or may not be <br>serious.</div><div>Reluctant to tear out t=
he tranny unnecessarily and then to find it was <br>something simple !<br><=
/div><div>=C2=A0</div><div>Notice it at low speed (probably exists at drivi=
ng speed but too much wind <br>and engine <br>noise) if shift to neutral an=
d cut ignition to minimize engine <br>and exhaust noise.</div><div>Noise is=
pulsating - like a tire with a bad spot but seems to be at <br><div><br></=
div>prop shaft speed.</div><div>=C2=A0</div><div>At first thought that it w=
as at wheel speed and from R side.</div><div>So changed out the R wheel bea=
ring.</div><div>No improvement</div><div>=C2=A0</div><div>Then while lookin=
g 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.</d=
iv><div>No improvement.</div><div>=C2=A0</div><div>Did listening on hoist w=
ith others listening too. Consensus was that there <br>was a noise at rear =
OD area as well as the pulsating one.</div><div>=C2=A0</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>=C2=A0</div><div>Sound file =
enclosed is a road test from about 15 MPH then shift to N and <br>cut engin=
e. Tunnel cover off.<br></div><div>=C2=A0</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>=C2=A0</div><div>Noise does appear to come f=
rom transmission.<br></div><div><div>=C2=A0</div><div>To verify is not diff=
removed one of the rear seats and noise doesn't <br>appear to be comin=
g from diff area.<br></div><div>Disconnecting prop shaft to isolate diff no=
t possible as need the inertia <br>of the rear wheels to produce the pulsin=
g.</div></div><div>=C2=A0</div><div>About 5k miles ago I changed out the la=
rger OD front bearing (sourced from <br><div><br></div>Moss ... ?) in the O=
D.</div><div>OD works fine and transmission shifts and works OK without unu=
sual <br><div><br></div>noises.</div><div>=C2=A0</div><div>The pulsating/cy=
clical nature of the noise baffles me and not consistent <br><div><br></div=
>with a bearing failure ?</div><div>=C2=A0</div><div>Given that it occurs i=
n neutral with no gears meshing it surely is not a <br>bad gear tooth etc.<=
br></div><div>OD not engaged so it is locked so not likely there.<br></div>=
<div>Removed gearbox top cover and did inspection - nothing obvious.<br></d=
iv><div>So to my mind this only leaves the GB rear bearing ?</div><div>Or m=
aybe a broken circlip or thrust washer and probably on main shaft <br>exter=
nal to gearbox ?<br></div><div>or half shaft ?<br></div><div>=C2=A0</div>An=
y comments/thoughts appreciated from the more experienced <br>among us. <br=
><div>Tkx</div><div>rg<br></div></div><hr><p><br>__________________________=
_____________________<br>Support <a href=3D"http://Team.Net"; target=3D"_bla=
nk" rel=3D"noreferrer">Team.Net</a> <br><a href=3D"http://www.team.net/dona=
te.html" target=3D"_blank" rel=3D"noreferrer">http://www.team.net/donate.ht=
ml</a><br>Suggested annual donation=C2=A0 <br>$12.75<br></p><div><br></div>=
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<br>
</blockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr"=
><div dir=3D"ltr">Best wishes<div><br></div><div>John Harper</div><div><br>=
</div><div>AHC UK 100 Register Secretary</div></div></div>
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