Subject: Re: [Healeys] Ah 100 rebuild

From: Bob Spidell <[email-masked]>
Date: Thu, 23 Apr 2015 22:38:26 +0000 (UTC)

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Hi Jonas,=20

I've done exactly one BN2 engine (for a 100M), but I learned a lot. In part=
icular, keep track of what screws, bolts, etc. go where; some of them are t=
hem screwball British fine, coarse, Whitworth, etc. In particular, there is=
 one small(er) bolt for the tappet covers that is shorter than the others; =
I think it's the front/bottom-most. If you use one of the longer ones in th=
at hole it will contact a tappet.=20

The 100 engine is known for cracked heads; you'll probably want to magnaflu=
x it and maybe the block, too. Variously recommended are the steel head gas=
ket and/or a British gasket 'varnish' that Norman Nock and Roger Moment bot=
h recommended. Can't recall the name just now; bet someone on the list know=
s it. It's something like Wellman's or similar and comes in a white box wit=
h blue lettering (Moss sells it). We used a std. copper gasket with this st=
uff and no leaks after a couple hundred miles.=20

Otherwise, the rebuild should be pretty straightforward. Rear seal or not i=
s your call, the opinions are mixed. We put one in--machining required--and=
 I think it helps but hasn't stopped leaking from the ream main entirely.=
=20

Bob=20

----- Original Message -----

From: "Jonas Payne" <[email-masked]>=20
To: "healeys" <[email-masked]>=20
Sent: Thursday, April 23, 2015 3:11:04 PM=20
Subject: [Healeys] Ah 100 rebuild=20

We have a BN2 in the shop in for an engine rebuild after spinning #3 rod be=
aring and tearing some stuff up.=20

We=E2=80=99ve rebuilt many engines, but this is our first 100-4.=20

Seems pretty straight forward, but they all have their intricacies.=20

If anybody has any specific areas to watch for or specific advice related t=
o minimizing leaks (ha-ha) we would greatly appreciate any input.=20

Thank you,=20

Jonas Payne=20

PBR Consulting Services, LLC=20

702.882.6711=20

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<html><body><div style=3D"font-family: Arial; font-size: 12pt; color: #0000=
00"><div>Hi Jonas,<br></div><div><br></div><div>I've done exactly one BN2 e=
ngine (for a 100M), but I learned a lot.&nbsp; In particular, keep track of=
 what screws, bolts, etc. go where; some of them are them screwball British=
 fine, coarse, Whitworth, etc.&nbsp; In particular, there is one small(er) =
bolt for the tappet covers that is shorter than the others; I think it's th=
e front/bottom-most.&nbsp; If you use one of the longer ones in that hole i=
t will contact a tappet.<br></div><div><br></div><div>The 100 engine is kno=
wn for cracked heads; you'll probably want to magnaflux it and maybe the bl=
ock, too.&nbsp; Variously recommended are the steel head gasket and/or a Br=
itish gasket 'varnish' that Norman Nock and Roger Moment both recommended.&=
nbsp; Can't recall the name just now; bet someone on the list knows it.&nbs=
p; It's something like Wellman's or similar and comes in a white box with b=
lue lettering (Moss sells it).&nbsp; We used a std. copper gasket with this=
 stuff and no leaks after a couple hundred miles.<br></div><div><br></div><=
div>Otherwise, the rebuild should be pretty straightforward.&nbsp; Rear sea=
l or not is your call, the opinions are mixed.&nbsp; We put one in--machini=
ng required--and I think it helps but hasn't stopped leaking from the ream =
main entirely.<br></div><div><br></div><div>Bob<br></div><div><br></div><hr=
 id=3D"zwchr"><div style=3D"color:#000;font-weight:normal;font-style:normal=
;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt=
;"><b>From: </b>"Jonas Payne" &lt;[email-masked]&gt;<br><b>To: </b>"heal=
eys" &lt;[email-masked]&gt;<br><b>Sent: </b>Thursday, April 23, 201=
5 3:11:04 PM<br><b>Subject: </b>[Healeys] Ah 100 rebuild<br><div><br></div>=
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--></style><div class=3D"WordSection1"><p class=3D"MsoNormal">We have a BN2=
 in the shop in for an engine rebuild after spinning #3 rod bearing and tea=
ring some stuff up.</p><p class=3D"MsoNormal">&nbsp;</p><p class=3D"MsoNorm=
al">We=E2=80=99ve rebuilt many engines, but this is our first 100-4.</p><p =
class=3D"MsoNormal">&nbsp;</p><p class=3D"MsoNormal">Seems pretty straight =
forward, but they all have their intricacies.&nbsp; </p><p class=3D"MsoNorm=
al">&nbsp;</p><p class=3D"MsoNormal">If anybody has any specific areas to w=
atch for or specific advice related to minimizing leaks (ha-ha) we would gr=
eatly appreciate any input.</p><p class=3D"MsoNormal">&nbsp;</p><p class=3D=
"MsoNormal">&nbsp;</p><p class=3D"MsoNormal">&nbsp;</p><p class=3D"MsoNorma=
l">Thank you,</p><p class=3D"MsoNormal">&nbsp;</p><p class=3D"MsoNormal">Jo=
nas Payne</p><p class=3D"MsoNormal">PBR Consulting Services, LLC</p><p clas=
s=3D"MsoNormal">702.882.6711</p><p class=3D"MsoNormal">&nbsp;</p></div><br>=
<br><div><br></div></div><div><br></div></div></body></html>
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_______________________________________________
Archive: http://www.team.net/archive

[email-masked]
http://autox.team.net/mailman/listinfo/healeys

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---

From: Michael <[email-masked]>
Date: Thu, 23 Apr 2015 18:44:33 -0400

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One problem that I have encountered on a few 100 engines was a distorted he=
ad face on the block. This was easily remedied by skimming the top of the b=
lock using the main bearing bores as a reference.
I am pretty sure that this distortion is a major contributor to the common =
problem of leakage above #s 2 &3 plug.
Certainly have not had that problem after having the head face trued up.
Michael S
BN1 #174

-----Original Message-----
From: "Jonas Payne" <[email-masked]>
Sent: =E2=80=8E23/=E2=80=8E04/=E2=80=8E2015 6:22 p.m.
To: "[email-masked]" <[email-masked]>
Subject: [Healeys] Ah 100 rebuild

We have a BN2 in the shop in for an engine rebuild after spinning #3 rod be=
aring and tearing some stuff up.
=20
We=E2=80=99ve rebuilt many engines, but this is our first 100-4.
=20
Seems pretty straight forward, but they all have their intricacies. =20
=20
If anybody has any specific areas to watch for or specific advice related t=
o minimizing leaks (ha-ha) we would greatly appreciate any input.
=20
=20
=20
Thank you,
=20
Jonas Payne
PBR Consulting Services, LLC
702.882.6711
 =

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</o:shapelayout></xml><![endif]--></head><body lang=3D"EN-US" link=3D"#0563=
c1" vlink=3D"#954f72"><div><div style=3D"font-family: Calibri,sans-serif; f=
ont-size: 11pt;">One problem that I have encountered on a few 100 engines w=
as a distorted head face on the block. This was easily remedied by skimming=
 the top of the block using the main bearing bores as a reference.<br>I am =
pretty sure that this distortion is a major contributor to the common probl=
em of leakage above #s 2 &amp;3 plug.<br>Certainly have not had that proble=
m after having the head face trued up.<br>Michael S<br>BN1 #174</div></div>=
<div dir=3D"ltr"><hr><span style=3D"font-family: Calibri,sans-serif; font-s=
ize: 11pt; font-weight: bold;">From: </span><span style=3D"font-family: Cal=
ibri,sans-serif; font-size: 11pt;"><a href=3D"mailto:[email-masked]">Jon=
as Payne</a></span><br><span style=3D"font-family: Calibri,sans-serif; font=
-size: 11pt; font-weight: bold;">Sent: </span><span style=3D"font-family: C=
alibri,sans-serif; font-size: 11pt;">=E2=80=8E23/=E2=80=8E04/=E2=80=8E2015 =
6:22 p.m.</span><br><span style=3D"font-family: Calibri,sans-serif; font-si=
ze: 11pt; font-weight: bold;">To: </span><span style=3D"font-family: Calibr=
i,sans-serif; font-size: 11pt;"><a href=3D"mailto:[email-masked]">h=
[email-masked]</a></span><br><span style=3D"font-family: Calibri,san=
s-serif; font-size: 11pt; font-weight: bold;">Subject: </span><span style=
=3D"font-family: Calibri,sans-serif; font-size: 11pt;">[Healeys] Ah 100 reb=
uild</span><br><br></div><div class=3D"WordSection1"><p class=3D"MsoNormal"=
>We have a BN2 in the shop in for an engine rebuild after spinning #3 rod b=
earing and tearing some stuff up.<o:p></o:p></p><p class=3D"MsoNormal"><o:p=
>&nbsp;</o:p></p><p class=3D"MsoNormal">We=E2=80=99ve rebuilt many engines,=
 but this is our first 100-4.<o:p></o:p></p><p class=3D"MsoNormal"><o:p>&nb=
sp;</o:p></p><p class=3D"MsoNormal">Seems pretty straight forward, but they=
 all have their intricacies.&nbsp; <o:p></o:p></p><p class=3D"MsoNormal"><o=
:p>&nbsp;</o:p></p><p class=3D"MsoNormal">If anybody has any specific areas=
 to watch for or specific advice related to minimizing leaks (ha-ha) we wou=
ld greatly appreciate any input.<o:p></o:p></p><p class=3D"MsoNormal"><o:p>=
&nbsp;</o:p></p><p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p><p class=3D"Mso=
Normal"><o:p>&nbsp;</o:p></p><p class=3D"MsoNormal">Thank you,<o:p></o:p></=
p><p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p><p class=3D"MsoNormal">Jonas =
Payne<o:p></o:p></p><p class=3D"MsoNormal">PBR Consulting Services, LLC<o:p=
></o:p></p><p class=3D"MsoNormal">702.882.6711<o:p></o:p></p><p class=3D"Ms=
oNormal"><o:p>&nbsp;</o:p></p></div></body></html>=

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[email-masked]

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