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Home > Help Needed / General Tech Chat > Skim or not?

steve2016

81 Posts
Member #: 11403
Advanced Member

17th May, 2017 at 12:42:47pm

Just wondering would you skim this head to remove these marks? You can slightly feel one with your nail.

Just its had quite a skim already so don't want to go too far... How can I tell how much more can be skimmed?

Thanks


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jonny f

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2091 Posts
Member #: 9894
Post Whore

Dorking

17th May, 2017 at 01:56:48pm

got a decent photo?

can't see, they dont look that bad though.

wil_h

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9258 Posts
Member #: 123
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Betwix Harrogate and York

17th May, 2017 at 02:20:29pm

I've put worse looking heads on without issue.

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.


Joe C

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12307 Posts
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Carlos Fandango

Burnham-on-Crouch, Essex

17th May, 2017 at 03:11:25pm

looks ok,

lay the gasket on it and see iof there are any deep marks that go over the fire rings

On 28th Aug, 2011 Kean said:
At the risk of being sigged...

Joe, do you have a photo of your tool?



http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1

https://joe1977.imgbb.com/



steve2016

81 Posts
Member #: 11403
Advanced Member

19th May, 2017 at 07:21:11am

Thanks, also just wondering to have a head skimmed does it need fully stripped as well eg the thermostat and heater tap studs removed or can they stay in?

Rod S

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5988 Posts
Member #: 2024
Formally Retired

Rural Suffolk

19th May, 2017 at 08:42:56am

Ask your chosen machine shop.

If they clamp it down the traditional way it can have the studs left in as they can use spacer blocks (specially machined ones of equal heights) but they might charge a bit more as it will take a bit longer.

But if they have a magnetic bed (which I've used in the past where I used to work) then no, the "top" of the head needs to be flat for the magnetic clamp to hold it.

EDIT - personally I would take those particular studs out anyway just to clean them up and inspect them, they have a habit of getting corroded right next to the head face if/when the gaskets weep slightly.

Edited by Rod S on 19th May, 2017.

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