<div dir="ltr"><div>Yes the belt sizing by looking up what it should be always shows a gates 7395 and I don't recall ever using that size. Some sites go by engine codes that make no sense to me. I do agree with Dan the belt will sit the same in the crank pulley yet deeper in the generator pulley which would make the gen pulley smaller increasing the gen speed . the Gates 7390 is 991 mm which is called the effective length x 10mm wide so it's very close to 10mm x 1000mm. Last thing I want is it to be to loose which the 7395 may be and if it wears there won't be any adjustment. I guess rather than risking the 7395 I'll just go with what works the 7390 I don't know what the Napa 15390 top width was I've had in on for 16 years and think it was wider than 10mm because they have changed their belts they even say longer ones will fit closer to 42". <br></div><div><br></div><div> I think over all these decades both pulleys wear just enough that the required belt like the Gates 7395 is just to long. I can't make any sense out of V belt manufacturer specs. <br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Dec 4, 2019 at 5:42 PM Dave Hall <<a href="mailto:dave@hallvw.clara.co.uk">dave@hallvw.clara.co.uk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">The original belt was 9.5 x 1000 mm. I would think 10mm x 39.5" should work fine, but your fellow Americans will tell you the US size. It's annoying that as demand falls, the correct parts become harder to find, even for cars only 20 years old, like my Jetta mk3.<br>
<br>
Dave.<br>
UK VW Type 3 and 4 Club.<br>
<br>
-----Original Message-----<br>
From: "William Jahn" <<a href="mailto:willjahn975@gmail.com" target="_blank">willjahn975@gmail.com</a>><br>
Sent: 04/12/2019 23:03<br>
To: "<a href="mailto:type3@vwtype3.org" target="_blank">type3@vwtype3.org</a>" <<a href="mailto:type3@vwtype3.org" target="_blank">type3@vwtype3.org</a>><br>
Subject: [T3] 73 T-3 generator belt?<br>
<br>
I looked up the belt Gates states my 73 should have a 7395 which is 10 mm x<br>
39.5 " or 1003mm working length.<br>
<br>
I had a gates belt and it is a 7390 and on my car is a 15390 Napa both are<br>
1/2" shorter . I have a spare 72 crank pulley and it is the same depth and<br>
width as the one in my car.<br>
<br>
I can adjust the 7390 and 15390 tight or with the 5/8" slack between the<br>
pulleys . I can't recall why I got the 1/2" shorter belts all I recall is<br>
one was from Napa and that's what they said it used.<br>
<br>
I'm afraid if I get the gates 7395 it will be to long .<br>
<br>
Does anyone know what they use?<br>
<br>
William<br>
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