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Home > 998cc > Manifolds not sitting flush.

analogue_radio

275 Posts
Member #: 4600
Senior Member

Melton Mowbray,
near Leicester

1st May, 2011 at 11:16:09pm

Basics specs:
Standard 998cc
12g295 head
T2 Turbo
Race Gen Carb
Mirage Manifold

Alright guys, started to fit my engine together earlier and ran into a problem.





As you can see everything isn't sitting flush.

I assume the carb manifold needs a few thou taking off it?


theoneeyedlizard

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7265 Posts
Member #: 1268
The Boom Boom speaker Police!

Essex

1st May, 2011 at 11:24:54pm

This is quite a common issue.

Easiest solution is to use stepped washers.

In the 13's at last!.. Just

theoneeyedlizard

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7265 Posts
Member #: 1268
The Boom Boom speaker Police!

Essex

1st May, 2011 at 11:26:14pm

Or use an MG Metro NA inlet manifold.

Or, as you say, you can lop a bit off your manifold.

In the 13's at last!.. Just

analogue_radio

275 Posts
Member #: 4600
Senior Member

Melton Mowbray,
near Leicester

1st May, 2011 at 11:26:32pm

Yeah that was my initial thought! easy fix then.

Ta matey.

wil_h

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9258 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

2nd May, 2011 at 07:54:46am

I had the flange side of mine macined so the two flanges were the same thickness.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


analogue_radio

275 Posts
Member #: 4600
Senior Member

Melton Mowbray,
near Leicester

2nd May, 2011 at 08:18:48am

Could I take away some metal with my angle grinder where the washer sits, on the back of the manifold?

Rod S

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5988 Posts
Member #: 2024
Formally Retired

Rural Suffolk

2nd May, 2011 at 08:35:25am

Aluminium doesn't "grind" well at all, it just clogs up the grinding wheel. If you want to remove aluminium use a very coarse sanding disc on your angle grinder.

Personally I used stepped washers.

Schrödinger's cat - so which one am I ???

analogue_radio

275 Posts
Member #: 4600
Senior Member

Melton Mowbray,
near Leicester

2nd May, 2011 at 08:43:07am

Hm yeah stepped washers seem the quickest and easiest option, I'll give them a go.

Cheers lads.
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