1.8 BP from Astina into NA6?

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wozzah1975
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Re: 1.8 BP from Astina into NA6?

Postby wozzah1975 » Sat Sep 15, 2012 8:53 am

emily_mxV wrote:Awesome, got the engine, now just trying to sort out the slight differences so I can get it functioning in my car :)

Could someone please tell me what this is called and where can I get one? (the red arrow, it unscrews from the head)

Image


It doesn't screw out, it is a press fit into the cylinder head. The only place you can get one is from a mazda spare parts outlet.

Don't forget the oil pick up needs to be swapped with the sump also,

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Re: 1.8 BP from Astina into NA6?

Postby manga_blue » Sat Sep 15, 2012 6:35 pm

The thing that the red arrow points to is the hose connection for the coolant hose to the little oil cooler which forms part of the oil filter mount. Here's the hose itself on an NA8.
Image
’95 NA8

emily_mx5
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Re: 1.8 BP from Astina into NA6?

Postby emily_mx5 » Sat Sep 15, 2012 7:26 pm

Yep I know what it does, the issue is my engine has a double barb like this:

Image

The large barb goes to an oil cooler, and the smaller one goes up to the throttle body/cold start valve (like NA6 setup)

Where as the mx5 has just the small barb going to the oil cooler.

So I wanted to swap the double barb for the single mx5 one. I thought it screwed out, but if its pressed in then I am lost as to how to change.

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Re: 1.8 BP from Astina into NA6?

Postby ralt » Sat Sep 15, 2012 10:56 pm

Hi.
Why dont you just cap the one you will not be using. A rubber cap with a hose clamp the same as the n6 has in the block beside the oil filter.

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Re: 1.8 BP from Astina into NA6?

Postby project.r.racing » Sun Sep 16, 2012 8:22 am

Yeah just cap it.

On the FWD version, some would go straight to the heater core via a hose. The BPT (from a BG8Z or R Familia) and some n/a Euro/JDM FWD versions it went to a water to oil cooler similar to the NA8 one, then on to the heater core.

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Re: 1.8 BP from Astina into NA6?

Postby emily_mx5 » Sun Sep 16, 2012 12:03 pm

yep my engine goes to the oil cooler then back to the heater core.

Is it safe to cap the large one? I assume there is a lot of pressure being pumped through ?

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Re: 1.8 BP from Astina into NA6?

Postby NitroDann » Sun Sep 16, 2012 12:29 pm

15psi.

get a hose that fits it, and something that fits in the hose and clamp both hard.

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Re: 1.8 BP from Astina into NA6?

Postby emily_mx5 » Sun Sep 16, 2012 8:23 pm

ok, I did this today. Found a huge bolt, cut it, wedged it into hose and clamped hose onto larger barb.
It looks so ghetto, please tell me if this was the stupidest idea ever :|
Image

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Re: 1.8 BP from Astina into NA6?

Postby NitroDann » Sun Sep 16, 2012 8:38 pm

Thats exactly what Id have done.

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speed wrote:If I was to do it again, I wouldn't even consider the supercharger.

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Re: 1.8 BP from Astina into NA6?

Postby project.r.racing » Sun Sep 16, 2012 8:48 pm

did that engine sit out in the rain for a few years? i'm getting tetanus just looking at the pics.


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