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I've learned from experience--aka 'the hard way'--that there are
'sealants' and 'adhesive sealants' (aka 'glue'). The adhesive
sealants--while appropriate in some instances--can glue parts together,
making them very hard to separate if the need arises. My mechanic used
black 'Right Stuff' and no gasket to seal my BJ8's pan to the block, and
when I cracked the pan I hurt my elbow--apparently, permanently--sawing
the pan off with a serrated knife.
This is known; there are some photos on the 'net of people lifting a SBC
by the intake manifold, which had been 'sealed' to the heads with Right
Stuff.
Bob
ps. Re: "Even though the factory manual states not to use sealant
around the casing seal of the brake ring ..." When I rebuilt my BJ8's
OD a couple years ago I found evidence that a sealant was used--it was
brownish/orangeish--and since I bought the car with 64K miles on it I
don't believe it had ever been apart before. I used one of the silicone
sealants, and last I checked I had no leaking at the brake ring.
On 1/13/2020 6:12 PM, Harold Manifold wrote:
> I agree it is very important to keep any foreign material out of the
> overdrive unit. I have had good luck using Loctite Gasket Maker. See
> attached picture. I believe it is a similar product to Permatex The
> Right Stuff.
> Harold
>
> ------------------------------------------------------------------------
> *From:* gradea1@charter.net [mailto:gradea1@charter.net]
> *Sent:* Monday, January 13, 2020 9:46 AM
> *To:* 'Robert Begani'; 'Harold Manifold'; 'warthodson@aol.com';
> '050.rpl@gmail.com'; 'healeys@autox.team.net'
> *Subject:* Re: [Healeys] Does synthetic oil leak more?
>
> Bob-that was another place the synthetic comes out...thru the threads.
> If you use anything, like pipe sealer or PTFE (teflon) just be careful
> not to get any near the entrance to your overdrive. Overdrive oil
> must be spotless due to the tiny drillings in the system. I was able
> to fix my seeps elsewhere with Permatex "Right Stuff" but be careful
> again to do a very neat job. I still recommend regular 30W non
> detergent mineral oil (as does the factory book) to refill the trans
> and OD. Some modern oils can foam in the overdrive and cause issues.
>
> Even though the factory manual states not to use sealant around the
> casing seal of the brake ring-that will leak with most synthetics and
> also seep with regular oil. Had to" Right stuff" the casing seam post
> rebuild to stop that seeping. Another place synthetic runs out is at
> the bottom casing plug. I do not have too much experience using
> silicone gaskets. I rebuilt with paper and aircraft sealer (old
> school-but original). I expected leaks or else it wouldn't be
> authentic British. Hank
>
> -----------------------------------------
>
> From: "Robert Begani"
> To: "Harold Manifold"
> Cc:
> Sent: Monday January 13 2020 5:38:23AM
> Subject: Re: [Healeys] Does synthetic oil leak more?
>
> My problem is leaking from the brass drain fitting in the bottom of
> the overdrive. When I used motor oil eventually by tightening the
> fitting, the drips would stop. With the synthetic oil the drips will
> not stop. Over the summer, while the car was sitting in the garage,
> there was a puddle in the plastic container I placed under the fitting
> before leaving for cooler weather. I just tightened the fitting a
> little more and the drips are reduced to 2 per day. Am thinking about
> using a thread sealant on the fitting and RTV on the gaskets. Or, is
> there a silicone gasket available?
>
> Also, is a silicone gasket for the valve covers worth the expense to
> stop leaking? Or, a combination of silicone gasket and Ultra
> Permatex? I have aluminum alloy valve cover.
>
> Bob Begani
>
> *From:* Healeys <healeys-bounces@autox.team.net> *On Behalf Of *Harold
> Manifold
> *Sent:* Saturday, January 11, 2020 11:51 AM
> *To:* warthodson@aol.com; 050.rpl@gmail.com; healeys@autox.team.net
> *Subject:* Re: [Healeys] Does synthetic oil leak more?
>
> Hello,
>
> All of your observations are a factor. Here are some comments from an
> article about synthetic oil leaks:
>
> Synthetic oil WILL NOT cause leaks. It may however make already
> worn-out gaskets/seals more evident, by leaking past them, and/or
> cleaning any sludge and other gunk that was sealing the existing leak.
> This is because Synthetic oil has much better cleaning properties,
> flows much better than conventional oil, and hence also lubricates
> much better than conventional oil (This is a good thing).
>
> I use a GL-4 synthetic gear oil in my transmission and it leaks.
> Believe it not not one of the leak mechanisms is from the interior
> along the bolts and drips from the bolt head on the exterior. I am
> changing the gaskets on my transmission and trying bonded sealing
> neoprene washers on the fasteners.
>
> I may be pursuing the impossible dream of a leak free Healey.... Harold
>
> ------------------------------------------------------------------------
>
> [mailto:warthodson@aol.com]
> *Sent:* Saturday, January 11, 2020 7:24 AM
> *Subject:* Does synthetic oil leak more?
>
> I am not a leak expert, but I find this hard to understand. For there
> to be a leak there has to be a hole. Is it because the synthetic oil
> molecules are smaller than the non-synthetic oil molecules? Given that
> the "holes" come in different sizes this seems illogical. Is it
> because the synthetic oil is more slippery? How is that measured? How
> much more slippery is it?
>
> Gary Hodson
>
>
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I've learned from experience--aka 'the hard way'--that there are
'sealants' and 'adhesive sealants' (aka 'glue'). The adhesive
sealants--while appropriate in some instances--can glue parts
together, making them very hard to separate if the need arises. My
mechanic used black 'Right Stuff' and no gasket to seal my BJ8's pan
to the block, and when I cracked the pan I hurt my
elbow--apparently, permanently--sawing the pan off with a serrated
knife.<br>
<br>
This is known; there are some photos on the 'net of people lifting a
SBC by the intake manifold, which had been 'sealed' to the heads
with Right Stuff.<br>
<br>
Bob<br>
<br>
ps. Re: "Even though the factory manual states not to use sealant
around the casing seal of the brake ring ..." When I rebuilt my
BJ8's OD a couple years ago I found evidence that a sealant was
used--it was brownish/orangeish--and since I bought the car with 64K
miles on it I don't believe it had ever been apart before. I used
one of the silicone sealants, and last I checked I had no leaking at
the brake ring.<br>
<br>
<br>
<div class="moz-cite-prefix">On 1/13/2020 6:12 PM, Harold Manifold
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:2A208FF7DF574236AA64B57914B7350C@AllInOne">
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
<meta name="GENERATOR" content="MSHTML 11.00.10570.1001">
<div dir="ltr" align="left"><span class="905270702-14012020"><font
size="2" face="Arial" color="#0000ff">I agree it is very
important to keep any foreign material out of the overdrive
unit. I have had good luck using Loctite Gasket Maker. See
attached picture. I believe it is a similar product to
Permatex The Right Stuff.</font></span></div>
<div dir="ltr" align="left"><span
class="905270702-14012020"></span> </div>
<div dir="ltr" align="left"><span class="905270702-14012020"><font
size="2" face="Arial" color="#0000ff">Harold</font></span></div>
<br>
<div class="OutlookMessageHeader" dir="ltr" lang="en-us"
align="left">
<hr tabindex="-1">
<font size="2" face="Tahoma"><b>From:</b> <a
class="moz-txt-link-abbreviated"
href="mailto:gradea1@charter.net";>gradea1@charter.net</a>
[<a class="moz-txt-link-freetext"
href="mailto:gradea1@charter.net";>mailto:gradea1@charter.net</a>] <br>
<b>Sent:</b> Monday, January 13, 2020 9:46 AM<br>
<b>To:</b> 'Robert Begani'; 'Harold Manifold';
'<a class="moz-txt-link-abbreviated"
href="mailto:warthodson@aol.com";>warthodson@aol.com</a>'; '<a
class="moz-txt-link-abbreviated"
href="mailto:050.rpl@gmail.com";>050.rpl@gmail.com</a>';
'<a class="moz-txt-link-abbreviated"
href="mailto:healeys@autox.team.net";>healeys@autox.team.net</a>'<br>
<b>Subject:</b> Re: [Healeys] Does synthetic oil leak more?<br>
</font><br>
</div>
Bob-that was another place the synthetic comes out...thru the
threads. If you use anything, like pipe sealer or PTFE (teflon)
just be careful not to get any near the entrance to your
overdrive. Overdrive oil must be spotless due to the tiny
drillings in the system. I was able to fix my seeps elsewhere with
Permatex "Right Stuff" but be careful again to do a very neat job.
I still recommend regular 30W non detergent mineral oil (as does
the factory book) to refill the trans and OD. Some modern oils can
foam in the overdrive and cause issues.
<div><br>
</div>
<div>Even though the factory manual states not to use sealant
around the casing seal of the brake ring-that will leak with
most synthetics and also seep with regular oil. Had to" Right
stuff" the casing seam post rebuild to stop that seeping.
Another place synthetic runs out is at the bottom casing plug. I
do not have too much experience using silicone gaskets. I
rebuilt with paper and aircraft sealer (old school-but
original). I expected leaks or else it wouldn't be authentic
British. Hank<br>
<br>
<p>-----------------------------------------</p>
From: "Robert Begani" <rfbegani@gmail.com><br>
To: "Harold Manifold"<br>
Cc: <br>
Sent: Monday January 13 2020 5:38:23AM<br>
Subject: Re: [Healeys] Does synthetic oil leak more?<br>
<br>
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<div class="WordSection1">
<p class="MsoNormal"><span style="FONT-SIZE: 12pt;
FONT-FAMILY: "Arial",sans-serif; COLOR:
#1f497d">My problem is leaking from the brass drain
fitting in the bottom of the overdrive. When I used
motor oil eventually by tightening the fitting, the
drips would stop. With the synthetic oil the drips
will not stop. Over the summer, while the car was
sitting in the garage, there was a puddle in the plastic
container I placed under the fitting before leaving for
cooler weather. I just tightened the fitting a little
more and the drips are reduced to 2 per day. Am
thinking about using a thread sealant on the fitting and
RTV on the gaskets. Or, is there a silicone gasket
available?</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 12pt;
FONT-FAMILY: "Arial",sans-serif; COLOR:
#1f497d"></span> </p>
<p class="MsoNormal"><span style="FONT-SIZE: 12pt;
FONT-FAMILY: "Arial",sans-serif; COLOR:
#1f497d">Also, is a silicone gasket for the valve covers
worth the expense to stop leaking? Or, a combination of
silicone gasket and Ultra Permatex? I have aluminum
alloy valve cover.</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 12pt;
FONT-FAMILY: "Arial",sans-serif; COLOR:
#1f497d"></span> </p>
<p class="MsoNormal"><span style="FONT-SIZE: 12pt;
FONT-FAMILY: "Arial",sans-serif; COLOR:
#1f497d">Bob Begani</span></p>
<div>
<div style="BORDER-TOP: #e1e1e1 1pt solid; BORDER-RIGHT:
medium none; BORDER-BOTTOM: medium none; PADDING-BOTTOM:
0in; PADDING-TOP: 3pt; PADDING-LEFT: 0in; BORDER-LEFT:
medium none; PADDING-RIGHT: 0in">
<p class="MsoNormal"><b>From:</b> Healeys
<a class="moz-txt-link-rfc2396E"
href="mailto:healeys-bounces@autox.team.net";><healeys-bounces@autox.team.net></a>
<b>On Behalf
Of </b>Harold Manifold<br>
<b>Sent:</b> Saturday, January 11, 2020 11:51 AM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated"
href="mailto:warthodson@aol.com";>warthodson@aol.com</a>; <a
class="moz-txt-link-abbreviated"
href="mailto:050.rpl@gmail.com";>050.rpl@gmail.com</a>;
<a class="moz-txt-link-abbreviated"
href="mailto:healeys@autox.team.net";>healeys@autox.team.net</a><br>
<b>Subject:</b> Re: [Healeys] Does synthetic oil leak
more?</p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt;
FONT-FAMILY: "Arial",sans-serif; COLOR:
blue">Hello,</span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt;
FONT-FAMILY: "Arial",sans-serif; COLOR: blue">All
of your observations are a factor. Here are some
comments from an article about synthetic oil leaks:</span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Synthetic oil WILL NOT cause leaks. It
may however make already worn-out gaskets/seals more
evident, by leaking past them, and/or cleaning any sludge
and other gunk that was sealing the existing leak. This is
because Synthetic oil has much better cleaning properties,
flows much better than conventional oil, and hence also
lubricates much better than conventional oil (This is a
good thing).</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt;
FONT-FAMILY: "Arial",sans-serif; COLOR: blue">I
use a GL-4 synthetic gear oil in my transmission and it
leaks. Believe it not not one of the leak mechanisms is
from the interior along the bolts and drips from the
bolt head on the exterior. I am changing the gaskets on
my transmission and trying bonded sealing neoprene
washers on the fasteners.</span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt;
FONT-FAMILY: "Arial",sans-serif; COLOR: blue">I
may be pursuing the impossible dream of a leak free
Healey.... Harold</span></p>
<p class="MsoNormal"> </p>
<div class="MsoNormal" style="TEXT-ALIGN: center; MARGIN:
auto">
<hr style="WIDTH: 100%; TEXT-ALIGN: center; size: 2px">
</div>
<p class="MsoNormal" style="MARGIN-BOTTOM: 12pt"><b><span
style="FONT-SIZE: 10pt; FONT-FAMILY:
"Tahoma",sans-serif">From:</span></b><span
style="FONT-SIZE: 10pt; FONT-FAMILY:
"Tahoma",sans-serif"> <a
href="mailto:warthodson@aol.com"; target="_blank"
moz-do-not-send="true">warthodson@aol.com</a> [<a
href="mailto:warthodson@aol.com"; target="_blank"
moz-do-not-send="true">mailto:warthodson@aol.com</a>]
<br>
<b>Sent:</b> Saturday, January 11, 2020 7:24 AM<br>
<b>To:</b> <a href="mailto:manifold@telus.net";
target="_blank" moz-do-not-send="true">manifold@telus.net</a>;
<a href="mailto:050.rpl@gmail.com"; target="_blank"
moz-do-not-send="true">050.rpl@gmail.com</a>; <a
href="mailto:healeys@autox.team.net"; target="_blank"
moz-do-not-send="true">healeys@autox.team.net</a><br>
<b>Subject:</b> Does synthetic oil leak more?</span></p>
<div>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt;
FONT-FAMILY: "Arial",sans-serif; COLOR:
black">I am not a leak expert, but I find this hard to
understand. For there to be a leak there has to be a
hole. Is it because the synthetic oil molecules are
smaller than the non-synthetic oil molecules? Given
that the "holes" come in different sizes this seems
illogical. Is it because the synthetic oil is more
slippery? How is that measured? How much more slippery
is it? </span></p>
<div>
<p class="MsoNormal" style="MARGIN-BOTTOM: 12pt"><span
style="FONT-SIZE: 10pt; FONT-FAMILY:
"Arial",sans-serif; COLOR: black">Gary
Hodson</span></p>
<br>
</div>
</div>
</div>
</rfbegani@gmail.com></div>
<pre class="moz-quote-pre" wrap="">
</pre>
</blockquote>
<br>
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