<html><body>Lucas being Lucas, there were many versions of similar parts..mostly to avoid inventory taxes. They still got caught. However, the 2 overdrive relays 33177 were the same part number from chassis 138031 to 228046 when they then went to one relay-same number. Then the screws mounting the unit were changed but not the relay itself. All Healeys used the exact same part above. There were similar relays: 33217 and 33204 used on different cars that could look the same, but maybe had there terminals in different locations. You should always check the stamped part number and DATE on all Lucas parts prior to installing them to be sure they are for your car. Regards, Hank<br><br><div class="reply-new-signature"></div><p>-----------------------------------------</p>From: "john harper" <ah100tech@gmail.com><br>To: "Michael MacLean"<br>Cc: "Healeys"<br>Sent: Thursday January 21 2021 5:50:15AM<br>Subject: Re: [Healeys] Tonight's Wiring Dilemma<br><br>
<div dir="ltr">Michael
<div><br></div>
<div>I have not checked the circuit diagram that you use but you
would better to use those in the workshop manual. The
BN1 version shows the wiring to two overdrive relays and
the centrifugal switch and to the wiring to the
overdrive. BN2 version has far less wiring. There are also
differences between the two, around the flasher unit.</div>
</div>
<br><div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, 21 Jan 2021 at 05:28,
Michael MacLean <<a>rrengineer.mike@att.net</a>>
wrote:<br></div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px .8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;">
As you can see in the two photos I am trying to connect the
overdrive relay to the wiring harness. Tonight's problem is
not with the color coding of the wires. It is the markings on
the relay. I have included a shot of my wiring diagram to
illustrate. In the diagram the connections on the relay
should be W1, W2, C1 and C2. As you can see on the relay it
is clearly marked W1, W2, C2 and C3. I'm confused enough with
trying to wire this car as it is. Having mismarked components
doesn't help. Just so you know, the wiring diagram in the
original service manual shows the same as my color coded
diagram. Wrong relay? Maybe mistaken relay. At
first I thought so, but I have two overdrive relays and they are
marked the same. I have been buying parts over several years
and have duplicated purchase during a sale not knowing I bought the
same part even cheaper a few years before. So who is wrong,
the diagram (I doubt it) or the part?
<div>
Mike MacLean<br><div><img src="/index.php/inbox/attachment/filenameOriginal/20210120_210119.jpg/filenamefs/Trash13465e3e61fc9e5da7c77187d0f28ec49417f" alt="Trash13465e3e61fc9e5da7c77187d0f28ec4941"><br></div>
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