10/17/00
Jim,
The 61-63 Olds F-85 ex. manifolds came originally without gaskets.
Studs, nuts, and flat washers were used. The factory manual shows a torque
spec of 18-24 ft. lb. KDon't know if this helps.
Regards,
Dave K.
--------------------------------------------------
>Paul-
>
>While there are no illustrations of an exhaust manifold gasket in the MGB
>GT V8
>Workshop Manual Supplement, I can't believe that these engines were built (by
>the factory) without them. It is almost impossible to get a seal between a
>cast
>iron block & cast iron exhaust manifolds because of the different rates of
>expansion, and at least 4 times as hard when one part is aluminum.
>
>I have a 1980 Rover Workshop Manual, 2300, 2600, 3500, & a Rover 3500NAS Parts
>Catalogue, also 1980. The manual goes into great detail about removing &
>replacing the exhaust manifolds, but is silent about gaskets except within the
>exhaust system itself, Same for the 6 cylinder engines. The parts catalogue,
>however, clearly shows manifold to block gaskets with a part number, & a
>notation that they are part of a manifold set with a part number.
>
>My own opinion is that there were always gaskets, that it was so obvious that
>it was not mentioned. There were certainly gaskets in the 1980 versions, as I
>have removed them when discarding the 3500 iron manifolds.
>
>I further believe that 13 lbs. is safe with a gasket. My own practice has been
>to snug the bolts enough to compress the lock washers, run the engine a few
>minutes, let it cool, then retighten the nuts until the washers compressed.
>
>Jim Stuart
>
>"KILE, PAUL D" wrote:
>
>> Hi guys,
>> I'm getting ready to bolt the exhaust manifolds onto my 3.5 for my factory
>> MGB-GT V-8. The factory recommends 13 foot-pounds for the bolt torque, but
>> that is for the original specification without manifold gaskets (the cast
>> iron manifolds bolt right up to the aluminum ports). I am retrofitting the
>> manifold gaskets, as recommended in an MG V-8 Workshop Note from the MGCC.
>>
>> Does anyone know if a US-spec Land Rover or Range Rover which uses the
>> exhaust manifold gaskets takes a different torque on the bolts? I don't
>> have any Rover workshop manuals, only the original MGB-GT V-8 supplement.
>>
>> Thanks in advance,
>> Paul Kile
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