Correct air cleaner for series one?

[Mike B]

Attached are scans of the relevant pages from the original and revised Service Bulletin Vol 142.

-Mike

[Arne]

Found it in my owner's manual. (Issued date on the back cover, "1st June 1971".)

Page 16, "Operating the car". Middle column, last paragraph reads:

When the outside temperature is 60°F (15°C) or below, turn the frost control valve lever on the air horn of the air cleaner to the position "Winter".

[Mike B]

Attached are scans of the relevant pages from the Emissions Control Service Manual for 1972 Year Models.

-Mike

[Mike B]

Found it in my owner's manual. (Issued date on the back cover, "1st June 1971".)

Page 16, "Operating the car". Middle column, last paragraph reads:

Yep, looks like I missed that last night. Looking at the other Owners Manuals I have, it looks like it was first added to the Nov 15 1970 edition (which may be the manual that came with the 3/71 parts car I had). I don't see it in the July 20 1970 edition.

-Mike

[geezer]

Yep, looks like I missed that last night. Looking at the other Owners Manuals I have, it looks like it was first added to the Nov 15 1970 edition (which may be the manual that came with the 3/71 parts car I had). I don't see it in the July 20 1970 edition.

-Mike

Good eye Arne! There were at least 3 of us who looked through the Nov 15 1970 edition that missed that. Speaking for myself, I more or less gave it a quick scan and was looking for a picture.

That narrows down the timeline somewhat for the introduction of what apparently is correctly called the "frost control valve lever".

Just my overactive imagination at work here but I am left wondering if this was a case of using up the old stock before bringing in the new. No mention in the new model intro and it wasn't mentioned until a revision was issued. That would coincide with the blue colored replacement air cleaner assemblies being sold in the Parts Department as opposed to selling left over orange production pieces.

[Carl Beck]

Found it in my owner's manual. (Issued date on the back cover, "1st June 1971".)

Page 16, "Operating the car". Middle column, last paragraph reads:

Ah.. Thanks Arne - I see it now. I was looking for a Picture that I thought I remembered - - and failed to read the printed pages.

Now I'll go back through some of the earlier Owners Manuals and see if they have any references "written" on the same subject.

Edit - Oh.. now I see that Mike already has...

Carl B.

Edited July 18, 2009 by Carl Beck

[AZ-240z]

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,

I have no direct documentation, but I can confirm that my 1/71 series 1 car came from the dealer with the summer/winter flapper feature as standard equipment.

Carl, you inquired of someone else, as I glanced through other responses to this thread, about documentation in the owners manual. Well, I just dug out my original manual, in presitine condition I must say, and issue dated of 15th November, 1970. On page 16 of my manual, under -cold engine (cold weather)-subtitle for - Operating the Car -, I will quote the relevant paragraph. Quote, "When the outside temperature is 60 degrees F (15 degrees C) or below, turn the frost control valve lever on the air horn of the air cleaner to the position "Winter".

It has always been my understanding, and this seems to be corroborated by by ZTherapy in there discriptions of the air filter housing that they are selling, that the summer/winter feature started with the 1970/71 change-over in either Aug or Sep of 1970.

Hope this is helpful

Dan

Dan

Edited July 18, 2009 by AZ-240z
addition information

[Arne]

I'd be willing to bet that the Summer/Winter lever was present on any US 240Z that had the 1971 emissions sticker under the hood. So probably 8/70-9/70 or so. That jives with everything we've seen so far.

[26th-Z]

Here is the engine diagram from Service Bulletin 125 dated May 1970. No mention of the frost valve. This diagram is of the non-emission L24.

[Mike B]

Speaking for myself, I more or less gave it a quick scan and was looking for a picture.

Me too. I also scanned for the words ummer/winter together, but not the word winter by itself.

I took some pictures of a few exhaust manifolds I have handy (ignore the plugs for the removed air injection tubes). The first manifold is from HLS30-00210 (a 11/69 production car). Notice that it has a casting number 1, and has the two raised circular areas where the air cleaner hose heat shield is mounted in later cars, but there are no bolt holes drilled. It also does not have the three raised circular areas on the left and right side connecting tubes of the manifold. The second manifold is from HLS30-00331 (also a 11/69 car). It also has the casting number 1, but the two bolt holes for the air cleaner heat shield have been drilled. The third manifold has the casting number 2. Not sure what the production date was on the car that came from. I don't have my two other 1969 production cars at the house right now, so not sure what they have. Its kind of difficult to see mounted on the car, but my 5/72 car has a casting number 6 on its manifold.

-Mike

[psdenno]

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.

I looked through my files and tool box, but can't lay hands on the owner's manual right now - it's here somewhere. However, I did find the file with my warranty book and a copy of the 2-1-72 Interpart catalog. I was surprised to see that the BRE Spook came in a choice of five colors for $38.50.

I'll keep searching for the Owner's Manual.

Dennis

[bpilati]

Does someone here have electronic versions of service manuals? Sounds like I heard someone say they were scanning for certain words.