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Datsun-240z Vs Fairlady-z432


kats

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7 hours ago, kats said:

Thank you so much for your offer about the radio , I need to make up my mind , I need to set the goal for my #2146 before asking you about it.

No problem @kats I am slowly working on restoring them and finding missing parts like the antenna switch that seems to always go missing. I bought 1 the other day but it was actually a later 260z/280z switch which is slightly different thickness (switch itself) and the mounting is a bit different. It could likely be used, but I would rather source another original switch. So they are not going anywhere at this stage. :).

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Posted (edited)

Thanks Chris, yea now I remember I have learned from you that  some of very early US 240Zs don’t  have a fuel vapor tank , but have an air injection system. 
I bought this pipes in July 2005 , at a local Nissan near my home . I was able to  buy export 240Z parts there , good old days . 

Kats

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Edited by kats
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Posted (edited)

I was expecting “E46 “ on the emissions type exhaust manifold , but it has “ E30” same as the non emissions type .

I did dry fitting with a dual exhaust pipes which is an optional item for L-series engined car sold in Japan . Was this dual exhaust system available for overseas customers? Did Datsun competition department list this system ? 
 

Kats

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Edited by kats
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12 hours ago, kats said:

Was this dual exhaust system available for overseas customers? Did Datsun competition department list this system ? 

@kats not as far as I'm aware..

Attached are scans of a manual I have on hand (which was a Sports Option Catalog) for Australian market owners. You can see the stamps on it show Australian addresses etc.. with the exhaust parts available in the catalog. I do not know of anyone who purchased this stuff sadly. But it's nice to think in the 70s you could buy any of this stuff. Other parts of the catalog show the cross flow LY head etc.. so I just oogle at it all and wish I could collect it all. :).

I do have some parts to be fair, as I'm sure a few of us here do.

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You know? I have scans of that exact catalog also!  The exhaust tube kit, 20000-E7276 shows up in my 1971 USA Datsun Competition Parts Bulletin as 99996-E1040, $180.  That included mufflers but if you wanted the megaphone tail pipes, that was 99996-E1041 for $48.  By 1973, the USA comp catalog # was 99996-E1045 and the megaphones were 99996-E1042.

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On 6/2/2022 at 9:44 AM, Gav240z said:

@kats not as far as I'm aware..

Attached are scans of a manual I have on hand (which was a Sports Option Catalog) for Australian market owners. You can see the stamps on it show Australian addresses etc.. with the exhaust parts available in the catalog. I do not know of anyone who purchased this stuff sadly. But it's nice to think in the 70s you could buy any of this stuff. Other parts of the catalog show the cross flow LY head etc.. so I just oogle at it all and wish I could collect it all. :).

I do have some parts to be fair, as I'm sure a few of us here do.

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Thanks Gavin , it is very useful to know that my exhaust can’t be used for LHD , unfortunately.

Kats

3DDC003D-E866-4372-9188-61CEE2D26E1E.jpeg

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Lovely E4620 tubular manifold, Kats!

Talking about the E7275 (later E7276) Race Option megaphone exhaust, a friend of mine owns this one. A rare survivor:

TwinMeg-1K.jpg

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TwinMeg-3K.jpg

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On 6/2/2022 at 5:27 PM, 26th-Z said:

Hear are some pictures of the exhaust manifold I found for 26th.  This was just after I had it ceramic coated and I was testing the fit.  It came with a metal shroud for the air filter pre-heater tube bolted to the manifold.  That's what those tapped holes are for.  It has full casting nipples.  Yours were ground off, Kats!  My thought about this manifold is that the flow and pressure is about the same as a set of custom headers.  I read some report that dyno tested the cast manifold against the headers for the gain in horsepower.

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Thanks Chris, I see no dimples for air pipes , clean looking exhaust!

I finally found “ U98” , I still don’t know what car was designated for U98 but , Fairlady Z electronic fuel injected models  uses 14004-U9800 . 
At that time, US and Canada used different exhaust manifold for the fuel injected modes , that is a lot bigger one .Interesting! 
Kats
 

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On 6/3/2022 at 7:21 PM, HS30-H said:

Lovely E4620 tubular manifold, Kats!

Talking about the E7275 (later E7276) Race Option megaphone exhaust, a friend of mine owns this one. A rare survivor:

TwinMeg-1K.jpg

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TwinMeg-3K.jpg

Thanks Alan, sharing the pictures of the megaphone exhaust system ! Super cool , and super rare . If someone starts making it , it would be a nice for people who wants to have a period-correct looking sports option parts .

By the way , for HLS30 and RLS30 , GRLS30 , what kind of exhaust manifolds  were listed on the competition parts catalog ? Were they also used for LHD Works rally cars? Or completely different one ?  Or could it have been made by some local exhaust specialists ? 
Kats

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Posted (edited)

Today I was shocked by this , a portion of an oil spray bar pipe was found from the oil pan . I couldn’t find out what it was first, but today I found that the pipe was the part of the spray bar . 
 

All the retaining bolts are loose,  I now understand this is why people want to get rid of it and going to have oil holes the camshafts and camshaft brackets.

But I want this to be an original.

Kats

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Edited by kats
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55 minutes ago, kats said:

Today I was shocked by this , a portion of an oil spray bar pipe was found from the oil pan . I couldn’t find out what it was first, but today I found that the pipe was the part of the spray bar . 
 

All the retaining bolts are loose,  I now understand this is why people want to get rid of it and going to have oil holes the camshafts and camshaft brackets.

But I want this to be an original.

Kats

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I found this picture of my e31 head. Looks like a revised version of the spray bar ? I dont know, thought I could share a picture.. maybe you know ?

20150807_151116_resized.jpg

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5 hours ago, kats said:

Today I was shocked by this , a portion of an oil spray bar pipe was found from the oil pan . I couldn’t find out what it was first, but today I found that the pipe was the part of the spray bar . 
 

All the retaining bolts are loose,  I now understand this is why people want to get rid of it and going to have oil holes the camshafts and camshaft brackets.

But I want this to be an original.

Kats

5A0E7AE0-16F8-43CB-B096-3CFD99B5EC2B.jpeg

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Kats nearly every L24 I've worked on has had this happen. The brazing just seems to fail due to engien harmonics and then the spray Bar ends up jammed in the corner of the head.

I had to fix this on my white 71 240z which is matching #'s and original. I had a spare spray Bar I took out of the motor from HS30 00051. I think it's only a matter of time before that 1 gives up too.

I personally don't worry about originality for internal engine pieces that can't be seen like this. I will convert to internally oiled cam when I get the chance.

When these fail they cause premature cam wear I think. I can hear a ticking noise that isn't valve / lash adjustment related on my L24. Maybe I just need a louder exhaust?

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Posted (edited)
5 hours ago, bartsscooterservice said:

I found this picture of my e31 head. Looks like a revised version of the spray bar ? I dont know, thought I could share a picture.. maybe you know ?

20150807_151116_resized.jpg

Hi Bart , thanks for sharing it , your thoughts are just the same as mine , my #2156 has it , I realized it today . Tetsu , he restored my 240Z and he definitely thought this spray bar was much better than the original one . I will ask him later . But I think we can see the one in the picture looked later one , much simpler way to make . The early one has a heavy duty looks , more metal and more screws . 
 

The first picture is my #2156 , and the second picture is my spare L24 which was removed from 01/1970 240Z .

Kats

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Edited by kats
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16 minutes ago, Gav240z said:

Kats nearly every L24 I've worked on has had this happen. The brazing just seems to fail due to engien harmonics and then the spray Bar ends up jammed in the corner of the head.

I had to fix this on my white 71 240z which is matching #'s and original. I had a spare spray Bar I took out of the motor from HS30 00051. I think it's only a matter of time before that 1 gives up too.

I personally don't worry about originality for internal engine pieces that can't be seen like this. I will convert to internally oiled cam when I get the chance.

When these fail they cause premature cam wear I think. I can hear a ticking noise that isn't valve / lash adjustment related on my L24. Maybe I just need a louder exhaust?

Thanks Gavin, I am thinking like you time to time . This car , I already am going to have fun with some modifications like non- emissions intake and exhaust, with a dual exhaust system, non-original radio , etc etc . 
I have got the “C camshaft “ which is designed as internal oiling system , and this has slightly sportier feeling profile. 
It will be a good choice for this broken oil spray head . 
 

The picture is my #2156 valve cover, Mr. K and Mr. Matsuo kindly gave their autograph on it in 2000 , just before departing Yokohama to attend ZCON LAS VEGAS .

Almost gone , but I still can see them !!

Kats

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3 hours ago, 240dkw said:

Kats, this is what I did, happy to say that everything is still in place and grommets are still soft.

 

Thanks 240dkw, I saw your work , you are genius! I like the idea of the splint for the pipe so much . Also the grommets are still doing good , that is a good news , almost three and a half years passed since you worked. Your car is a Canadian 240Z ? I see non emissions devices on your exhaust manifold.

Kats

D6B7BE6A-B793-4B29-881D-875655AF230D.jpeg

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Great pictures, Alan.  I'm wondering if it's cost effective to press out a few parts to make a few of these headers.   The end result may look too modern, yet still potentially faithful to the original design.

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3 hours ago, xs10shl said:

Great pictures, Alan.  I'm wondering if it's cost effective to press out a few parts to make a few of these headers.   The end result may look too modern, yet still potentially faithful to the original design.

I would like to say thank you Alan too , those are museum pieces, if not you , I don’t know who will be able to show those . We are lucky to be here .

Yes , those parts are usually hard to see . 
 

Thanks !

Kats

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12 hours ago, xs10shl said:

Great pictures, Alan.  I'm wondering if it's cost effective to press out a few parts to make a few of these headers.   The end result may look too modern, yet still potentially faithful to the original design.

I think that would be appropriate if the context suited, but definitely a niche interest. And - as is often the case with Works parts - something of a moving target in terms of evolution. Which version to replicate?

There's also a philosophical conflict between original parts and replica/re-popped parts when the originals were never sold to the general public in the first place. Can be something of a minefield. I'm still not sure what I think about all that...  

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