Correct air cleaner for series one?

[Mike B]

I have been thinking about this some more, and I'm pretty sure that I have seen air cleaners with the summer/winter door on 1971 model cars. I parted out a 3/71 car and I'm pretty sure it had it.

I have also noticed that even the 1969 production US cars have two raised circular areas on the bottom of the exhaust manifold. On later cars, this is where two bolts attach the metal shield for the hose that directs heated air to the air cleaner. It is interesting that they were planning to incorporate this additional emissions function at the beginning of 240Z production.

-Mike

Edited July 18, 2009 by Mike B

[26th-Z]

Jimbo,

I am completely correct on what I know. Read what I wrote. Reading comprehension is elementary for greenhorn status. So is spelling. Further, you forgot to mention the various designs for holding the filter element in place and their application. As well as the various shapes of the air horns. Don't spar with me, boy. You'll get bruised.

I would love to see pictures of the winter / summer setting feature. I'm looking for a picture of the manifold Mike describes. I have one with the shield.

[HS30-H]

The earliest were on the 1969 non emmission type Japanese Fairlady Z and Canadian Z models.

Earliest Fairlady Z models had two different air cleaner boxes - depending on the region of Japan in which they were going to be sold ( either 'normal', or 'Winter Pack' ).

If we are counting, and including Fairlady Z models, we should not forget the two 432 early versions too......

[26th-Z]

Going back over this thread... Ron, I bought the air cleaner in the middle. Can't confirm what it is from.

Here are two different filter element alignmet methods. The picture with the spring clips on the outside is from Her Majesty the 26th.

[Bonzi Lon]

FWIW, #110 has the filter alignment spring clips on the outside.

Bonzi Lon

[Carl Beck]

I tend to agree with Dan. The later Series 1 cars had underhood stickers that certified they met 1971 emissions requirements. As a guess, I'd say that from 8/70 or 9/70 they started using the so-called 'flapper' airbox.

Was there a air cleaner housing that had the provision for hot air from the manifold - but that did not have the Summer/Winter switch aka "flapper" ?

Everything I have found so far in terms of documentation - seems to indicate that the Summer/Winter switch - started with the 72 Model Year here in the US. {ie Aug. of 1971}.

FWIW,

Carl B.

[Carl Beck]

Carl,

There was a Revised Edition Service Bulletin Vol 142 issued in Oct 1971 titled "Improvement of Emission Control System (1972 Year Models)". One of the revisions from the previous version of SB Vol 142 issued in June 1971 was the addition of a "Hot-Air Type Air Cleaner". It describes the manual summer/winter switch and the hose from the exhaust manifold to the air cleaner.

Hi Mike:

Thanks for looking for that - I don't have a copy of either of the SB's, nor could I find them in the of Technical Service Bulletins list that Geezer {Ron} had. Can you scan it for us.

The individual Technical Service Bulletins have "TS" numbers like TS71-10, TS71-11 etc. Does the SB "Volume" contain all the individual TSB's?

There was also a separate Service Manual "Emission Control System for 1972 Year Models - Revised Edition" issued on Oct 20, 1971 that has similar information. This was also incorporated into the combined version of the 1972 Engine, Chassis and Body Service manual, but not the separate versions of the 1972 Service Manuals.

OK - that puts the Summer/Winter switch for sure in the 72 Model Year...

Looking at my combined version of the 72 Service Manual - I see the Summer/Winter switch shown on the pictures of the complete engines - as well as in the Emission Controls section. Maybe that is the picture I thought I saw in the Owners Manual... it looks like the image I had in mind...

I don't see anything about the manual air cleaner temperature switch in the 1972 owners manual (at least the 3/72 edition), but the 1973 owners manual (3/73 edition) describes the operation of the Automatic Temperature Control Air Cleaner that was added that year.

-Mike

I have a 15 Nov. 70 Owners Manual for the Series I - that adds the A/T to the Owners Manual, nothing in there about a Summer/Winter switch.

I have a 1 June 1971 Owners Manual - nothing in there

I have the Second Edition, 20th Oct. 71 edition

I have the 6th Edition, 31 May 72

I have the 7th Edition, 30 June 72

I looked through them - and don't see any mention of the Summer/Winter switch either

hummm..... I guess I'm still looking for anything that would document a Summer/Winter switch applied before Sept. of 1971 for the start of the 1972 Model Year here in the U.S. or Canada.

[Arne]

hummm..... I guess I'm still looking for anything that would document a Summer/Winter switch applied before Sept. of 1971 for the start of the 1972 Model Year here in the U.S. or Canada.

Carl, My very late '71 (#37705, 7/71) has the Summer/Winter switch, and associated ducting from the manifold. Still has all its original emissions gear, so I have no reason to doubt that it came that way from the factory.

The 4/71 car I parted a while back also had the Summer/Winter switch, but I can't say as firmly that it was original. I believe so, though.

[geezer]

Does anyone have a copy of SB Volume 137. This very well could be the missing link that may make it possible to attach a date or vehicle serial number to the incorporation of the summer/winter setting. I found this SB which was issued originally stapled to this booklet but it has since gone missing. It is my guess that HLS30-21001 would make for a logical starting point. This could be unofficially verified by our members who know the history of their cars.

[Carl Beck]

Hi Ron:

Yes - I have SB 137. Nothing in there about the Summer/Winter switch or air cleaner at all.

FWIW,

Carl B.

[psdenno]

Carl, My very late '71 (#37705, 7/71) has the Summer/Winter switch, and associated ducting from the manifold. Still has all its original emissions gear, so I have no reason to doubt that it came that way from the factory.

The 4/71 car I parted a while back also had the Summer/Winter switch, but I can't say as firmly that it was original. I believe so, though.

My 4/71 has the Summer/Winter switch - bought it new, so I know it came that way.

Dennis

[Carl Beck]

Thanks Dennis

Do you still have your original Owners Manual? If so, can you review it and see if the directions for use of the Summer/Winter position of the lever on the Air Cleaner is outlined there?

Also a picture of the installation would be useful.

thanks,

Carl B.