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Gotta remember this engine was used in several different vehicles, some of =
them diesel fueled. These features could have been needed for other applica=
tions. I suppose the extra hole could have been for a relocated dipstick or=
maybe an oil cooler return. I thought about it for my PVC mod, but decided=
on the down tube port instead.
Bill Lawrence
BN1 #554
________________________________
From: Healeys <healeys-bounces@autox.team.net> on behalf of Steven Kingsbur=
y via Healeys <healeys@autox.team.net>
Sent: Monday, January 18, 2021 1:37 AM
To: Michael MacLean <rrengineer.mike@att.net>
Cc: Healeys <healeys@autox.team.net>
Subject: Re: [Healeys] Threaded Hole
Not sure what it's for, but it does exist on my engine and the plug that fi=
lls that hole uses a 1/2 BS or 7/16 WW socket. Again not sure what it's for=
. But I'm pretty sure if you don't plug it, you're going to have some probl=
ems.
Also look at the back of your block, there is a hole that used to fit an=
oil feed that was eliminated on 100 engines, but is used to feed oil to th=
e 100S distributor I believe. The hole wasn't plugged on my block and I did=
n't notice it until I had the engine back in the car and fired it up and it=
leaked oil out the hole. Standing behind your engine, it's a little off ce=
nter to the left and about an inch below the head. I've been told it should=
be a brass plug. I made an aluminum plug and pressed it into the block.
Steven Kingsbury
On January 17, 2021 at 12:25 PM, Michael MacLean <rrengineer.mike@att.net> =
wrote:
Can someone please tell me what this hole is for?
Mike MacLean
_______________________________________________
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<div>Gotta remember this engine was used in several different vehicles, som=
e of them diesel fueled. These features could have been needed for other ap=
plications. I suppose the extra hole could have been for a relocated dipsti=
ck or maybe an oil cooler return.
I thought about it for my PVC mod, but decided on the down tube port inste=
ad.</div>
<div><br>
</div>
<div>Bill Lawrence</div>
<div>BN1 #554</div>
<hr style=3D"display:inline-block;width:98%" tabindex=3D"-1">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" st=
yle=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Healeys <healeys-b=
ounces@autox.team.net> on behalf of Steven Kingsbury via Healeys <hea=
leys@autox.team.net><br>
<b>Sent:</b> Monday, January 18, 2021 1:37 AM<br>
<b>To:</b> Michael MacLean <rrengineer.mike@att.net><br>
<b>Cc:</b> Healeys <healeys@autox.team.net><br>
<b>Subject:</b> Re: [Healeys] Threaded Hole</font>
<div> </div>
</div>
<div>
<div>Not sure what it's for, but it does exist on my engine and the plug th=
at fills that hole uses a 1/2 BS or 7/16 WW socket. Again not sure what it'=
s for. But I'm pretty sure if you don't plug it, you're going to have some =
problems.</div>
<div> Also look at the back of your block, there is a hole=
that used to fit an oil feed that was eliminated on 100 engines, but is us=
ed to feed oil to the 100S distributor I believe. The hole wasn't plugged o=
n my block and I didn't notice it until I had the
engine back in the car and fired it up and it leaked oil out the hole. Sta=
nding behind your engine, it's a little off center to the left and about an=
inch below the head. I've been told it should be a brass plug. I made an a=
luminum plug and pressed it into
the block.</div>
<div>Steven Kingsbury </div>
<div> </div>
<div><br>
On January 17, 2021 at 12:25 PM, Michael MacLean <rrengineer.mike@att.ne=
t> wrote:<br>
<br>
</div>
<div>
<blockquote type=3D"cite">
<div class=3D"x_msg-quote">
<div class=3D"x_yahoo-style-wrap" style=3D"font-family:times new roman,new =
york,times,serif; font-size:16px">
<div dir=3D"ltr">Can someone please tell me what this hole is for?</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">Mike MacLean<br>
</div>
</div>
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