Actually, I believe an earlier thread revealed that there are two
different stock manifold flange thicknesses, depending on the year. Looks
like you got the wrong one. Try searching the archive.
Andrew Errington had this to say:
>Hi listers,
>
>I have a "new" inlet manifold to replace my existing one, but when I went to
>fit it I discovered that the mounting flanges which are supposed to be
>clamped by the big washers on the manifold studs had been ground down so
>they were not as thick as the exhaust manifold flanges. This meant that the
>washers would not hold them so I could not fit the new inlet manifold.
>
>I measured the flanges on the original parts to be about 14mm, and on the
>new manifold to be 12mm. I have the facilities to machine 2mm thick pieces
>to make up the difference but I should really appreciate it if someone on
>the list could accurately measure the thickness of the exhaust manifold
>flanges so I can double check and compare them to my measurements. It is
>difficult for me to accurately measure this on the car without dismantling
>everything, and I am sure someone on the list has an example of these parts
>strewn about their workshop that they could measure.
>
>Please reply directly to me (ame@synaptics.com) and I will summarise for the
>list.
>
>Many thanks,
>
>Andy
>--
>'69 MGB (with new carbs itching to be installed if it weren't for a bunch of
>little things getting in the way)
>
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the red one with the silver bootlid.
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