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Inlet manifold heat shield position


Puglet1

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I disassembled the carbs a few months ago and replaced some jets, washers and gaskets.

I have foolishly forgotten which position the manifold heat shields sit.

Is it the manifold side of the white block or carb side?

Does it make a difference?

 

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Here's another variation on my DIY for daughters Mk2 Spit to stop vapour lock, the standard extractors caused the problem.

The manifold to carb studs were replaced with threaded bar going right thro the manifold flange and the heat shields mounted on the engine side of the flange

Copied from a USA article on a Spit 1500

 

HS2 Heat Shields from underside.JPG

Front & Rear shields from top note mounting behind manifold flange..JPG

Spit 1500 Heatshield Template.gif

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1 hour ago, DanMi said:

you really want them carb side of the white heat stopping block so they don't get heated by the manifold

I think the shield heating comes from the exhaust manifold so inside the block stops this being transferred to the carbs🤔

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Johny. My original logic was the same as yours.

Problem I have is DanMi and micklewis suggestions also seems to make sense.

It will be interesting to see what others think?

 

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1 hour ago, johny said:

think the shield heating comes from the exhaust manifold so inside the block stops this being transferred to the carbs🤔

I agree install manifold side, now which way did I install my shields...?

 

Edited by Iain T
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