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After two two hours finally got the lower bolt/nut off the starter motor to test fit the Bastuck extractor.

 

No issue, it sits well above block, so no fettling required.

 

It does need to be clamped to sit flat across the head, however, even with the thick metal gasket, the collector sits against the block.

 

Is this an issue ?

 

 

9DC1702E-23FD-4DFD-94A6-49FAAB5E5F1B_zps

 

 

The gaskets are quite thick, so I could pack out withasecondeach side, or is that a bit thick?

 

It does lookrather nice and shiney !

 

60D0E917-A817-4E57-8225-282007AE7331_zps

 

Even with the alternator heatshield, is it still necessary to coat this bling black ?

Edited by McMuttley
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Hi Austin,

if it was me I would contact Phoenix and explain the problem in simple english.

As the collector is in contact with the block how do you know that the manifold is sealed.

If you have tightened it down to seal how do you know that you have not loaded the pipe welds and will they give way in the near future.

 

You could try fettling (file/grind) the block to see if a gap can be formed.

 

Have you got the manifold coated yet - if so that could bu99er up a replacement.

If not see if they will exchange it for one that fits.

 

Roger

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""Even with the alternator heatshield, is it still necessary to coat this bling black ? ""

 

No. I think its best left as is.

A black-painted manifold will radiate heat faster that the shiny stainless.

http://physics.bu.edu/~redner/211-sp06/class23/class23_transfer.html

 

The heat radiation varies in proportion to the emissivity of the surface

http://www.engineeringtoolbox.com/emissivity-coefficients-d_447.html

polished stainless e = 0.075

lampblack paint 0.96

black lacquer on iron 0.875

So the heat radiated from a black painted manifold will be about 12 to 13 times faster than

from polished stainless. But not much faster than weathered stainless.

 

Peter

Edited by Peter Cobbold
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Thanks guys, it is Bastuck manifold rather than Phoenix, so plain English may not be so straight forward (for both of us).

 

I share the view in terms of whether its is sealing at the bottom if the block is pushing it out I am guessing that doubling up on gaskets is not a great ides ??? except for possibly checking at what point the extractor contacts the block ?

Edited by McMuttley
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Glad to see that you have fitted a heat shield to preserve your alternator from the heat of the exhaust.

Not difficult to make, or can be purchased from the likes of Revington.

Ian Cornish

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It definitely doesnt want to be touching the block at all, not only in terms of sealing as you wont know if its down tight but it could twist and be worse than the old smokey that you took off, I would be having words with the supplier be they in German or English it isnt right.

Stuart.

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Same idea, either the header will not seal or if at the edge to fit

it might make a terrible noise when hitting the block under certain revs.

 

As it is new I would send it back if old I would cut it with a grinder 90%

of the diametre at the top 7 cm from the head and press the manifold

away from the block and do a MIG seam again.

 

Had to do so with my V8 manifolds that fully had to be custom made

and there was limited space at several places not to touch the engine

or the gearbox and not to touch the frame or the inner wing.

 

post-13092-0-23608500-1455462558_thumb.jpg

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If you send those two Pictures to Bastuck, with a Comment in English, they will for sure be able to help you. I fitted

the same System on my TR6 a few Years ago, no Problems at all.

My recommendation once you got the correct Manifold, I would wrap it, Reason, you dont Need the Heat of those four Pipes in the Engine Compartment. In my case, it reduced the Temperature under the Hood betwen 50 and 60°C. If you Need Help

in getting a German Text, send your English Version to me and I will translate it.

 

Regards

 

Robert

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We had the opposite problem with a Phoenix low port manifold last year, it cleared the block allright, but was hard up against the steering column.

 

Fix was to give some local abuse using blowlamp, & a short length of scaffold pole, & a large hammer.

 

 

 

 

 

Bob.

Edited by Lebro
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This seems to me to be one of those parts one wants to "fit", Austin. A Bob-sized BFH, perhaps, but fit without any concerns about the manifold gasket or stressing the welds.

 

I'd settle this with your supplier before any irreversible alterations.

 

What's wrong with an original cast iron exhaust manifold? Not blingy enough? Not smokey enough? Not track-day enough?

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Thanks All

 

I will get in touch with Bastuck this morning. I tried it in place again last night and the collector part touches the block quite early and I can get a feeler gauge between the gasket and the extractor, so if I were to torque it up, it would be under some significant strain on the welds and probably still not seal.

 

Pic of the block below. I assume that this isn't some sort of wide bodied dreamliner special ? I don't fancy grinding it away in order for a part that should fit to do so ( also I might strike oil !)

 

IMG_8490_zpszy5sqxzz.jpg

Edited by McMuttley
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Has the head been re-faced across the ports? I don't have a step like that on my car at the block/head.

 

Maybe a previous owner was trying to reduce the effect of the ball milling of the inlet ports to reduce their diameter and promote better gas flow.

 

Rgds Ian

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Is there such thing as a spacer? a thin 2mm one with a gasket either side might work, or even two of Revvy's thick ones, or is that just more opportunities for failure ?

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Looking at a few other 3a head pictures your ports do look very set back from the edge of the block, I'm wondering if Ian has a point and the interferance you are seeing on the side of the block is because of this?

 

Alan

One way f checking would be to look at the inlet ports. You should be able to see evidence of them having been ball milled out to 1 5/8" dia. If the head has been re-faced across the ports the diameter will only be 1 1/2" or something in between depending on how much has been removed.

 

Rgds Ian

 

Rgds Ian

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