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Tim Walz

1971 "Fuel vapor recovery tank"

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Hi I have a 71 240, which the previous (very young) owner removed parts from, thinking they were "getting rid of all that emissions junk". Turns out, I have about half of an a/c system, and this sort of triangular tank, which mounts inside the hatchback, just over the fuel filler tube is missing. I understand that the one I'm looking for is made of plastic, NOT METAL (thanks Mike!) I have been able to locate one on a '72 model car, but it is a different design (too big, made of metal). mine is the older car without seatbelt retractors. (but not so old as to have rear hatch vents). I'd sure like to be able to put more than half a tank of gas in this car sometime, so if you can get me the part I'm describing here, please contact me!

Tim timothywalz@hotmail.com

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Timothy,

You are looking for a plastic vapor recovery tank. The metal one from a '72 will not fit. I tried.

You might have to order it from Nissan.

Get ready for a plug.......

Buy the Zcar Microfiche CD and you can look up your own part numbers!! :) Click the ad on our main page (upper right side).

[m]

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I know I need the cd! Looks like it turned out pretty well... (last time I was on with you guys you were still working on it, as I recall.... In the mean time, thanks for the info! I'll still try to find a used one if I can though, to (sorry about the pun) try to avoid getting 'plugged' by the dealer;)

Thanks again!

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Sounds good...

Just stay away from the metal tanks. They won't fit. I was "guaranteed" that one would fit my '71. And, it didn't (by a long shot).

My tank is plastic and was cracked. Instead of spending the $150+ on a new tank, I just epoxied it.

I know I'll regret that in the future (smell), but, I have to draw the line somewhere on my resto.

I figured this is an easy swap later on....

l8r

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Since the tank is just to collect vapors and is hidden. Why not make it yourself from metal or have a metal shop do it.$150.00?Is that right mike?Why pay that amount for something you know is not going to last?How much would you pay for a 71 that I would make of metal?Is there a market for those? Daniel

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Hmm.... interesting idea.

But, I wonder if a metal fab shop can put together something that custom for under $150. Somehow I don't think it would be possible.

However, I have no experience with metal fab shops. Anyone else chime in on this? I've seen custom fuel tanks, how much are those?

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My 71 240 manufactured 9/71 (#920 Gold for anyone that has checked the Paint Code post) HAS a Metal Recovery Tank.

Is it possible that the CD shows that up to a given month, they were plastic, then they were metal with a design change even later?

I took one out of a 72 and it's identical to the one I have.

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Having one to go by would be the hard part.You have that.You could use aluminum or sheet metal.All it holds is vapor.Look how thin a real gas can is!If you wanted start with one of those and cut it to fit.Fold and hammer the seams,maybe put in a few rivets,Then seal the seams with some of that fine quality JB weld or have them silver soldered(stronger).Or have the '72 metal unit cut down to fit.I had a 12x12 inch square cut into the bottom of a fuel tank for a truck I was redoing.I cleaned it out and the welder welded it shut.I know a vapor can is alot easier than that!$150.00 buys alot of tries! Have fun!!! Daniel

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EScanlon,

FYI... your 9/71 240Z is a '72 model car. Datsun/Nissan built three different cars during the '71 production year. The '71 series I with the vents on the tailgate and the 240Z quarter badges (amongst other differences), the '71 series II vents moved to the quarter panels (again other changes) and the '72 240Z. My car was built '8/71 which is the last month of '71 series II run. For example my car has the fuse box on the trans tunel under the ash tray at the front of the center console, while your fuse box will be behind the passenger kick panel with the redesigned console to make room for the later style transmission with the more forward shifter. See www.zhome.com for a list of the other differences, however, I don't think they list the vapor collection tank! I'll have to take that panel off and see what I have back there!

Of course mine being a late '71 series II and yours being a early '72 makes them both much more valuable! :-)

Have fun!

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I'm just thinking out loud here, but I wonder if you could use a radiator overflow tank such as you see on race cars and some production cars. Seems like I have seen them square or rectangular as well as round. Instead of mounting it where the stock vapor tank was there ought to be just about enough room to mount it beside the filler. If you drilled and tapped it for the extra lines ( I have a thick plastic one on my race car) and made some sort of mounting bracket it should work as long as you had it at or above the plane of the filler. Seems like you should be able to find one that is approximately the same diameter as the filler (3 or 4 inch but I'd have to go measure mine) so that you would be able to mount it next to the filler without it being in the way. Let me look through some of my catalog collection and I'll see if I can find something that might work.

OK, I looked in Summit Racings' catalog and found a round aluminum overflow tank for $45.50 (older catalog though) that holds one quart of liquid. It has a petcock on the bottom you could take out and put a T fitting in for barbed hose nipples and one on top you could do the same in. It doesn't give the dimensions but if you measure the space right in front of the filler and find out exactly how much space is there you might be able to squeeze something like this in. You have four lines to connect to it, 3 come from the tank and 1 goes to the filler. Pegasus racing had a radiator overflow tank that was probably even better due to its size but you would need to cap it off with something other than a radiator cap or fumes would leak into the car. Hope that gives you some ideas.

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Ok, I guess there are a lot of creative ways to solve this delemma, but I'd sure prefer to put the stock part in if I can find one. I'm the sort of person who could easily turn a "simple" fabrication job like this into a really expensive and time consuming waste of time. (not knowing what the gas pressure is we're dealing with, I suppose I'd probably play it safe with a short section of pvc pipe and some fittings, but how do I know the purpose of the relative orientation of the inlet hoses? etc., etc., etc.) I guess it just seems to me that this shouldn't be a highly sought after part, and thus is probably still on that nasty derelect that one of you has rusting away on the back fourty!!!;)

Thanks for all the good ideas!

-Tim

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71 240Z AT; Mfg: 9/71 VIN# HLS30 43274 All numbers match.

Console: Ash Tray / Cigar Lighter Fuse Cover Combo, Choke & Accelerator slots with no warning light from choke, Rear Window Defog Switch to rear of choke, Bi-Lateral Parking Light Switch Opening to right of Rear Window Defog Switch.

Seat Belts: No retract and no indent in floor to accept retracts. Shoulder belt attaches via slotted hole, hangs from hook below quarter light window.

Dash: No indent for Hazard Light Switch.

Hatch: Round openings for original duct work covered with round rubber plugs. Original outer seal was 3 piece.

Fuel Door: Round Keyless Latch

Seats: No recline, round knob adjusts angle.

Tool Storage: Hinged Openings in rear deck. Luggage Straps.

Trust me on this one, it's a 71

Enrique

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Someone with the CD Microfiche please double check what I found on the old style Microfiche.

Part Number

17350-E4600 Used until 6/71

17350-N4601 Used between 7/71 and 7/73

17350-N3400 Used between 8/73 and 8/74

17350-N4600 Used between 9/74 and 11/74

These are the part numbers for the tank in question.

So, the question to Tim is when was your car manufactured? Not the registration year, the year and month listed on the drivers door jamb.

My guess, is that unless he has a Series I 240 which he hasn't said he does, he can use the metal tank which is the one used between 7/71 and 7/73.

I'm thinking that Mike couldn't use it cause he does have a Series I. Mike can you answer?

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Here's what the Zcar CD says:

Okay, here's what the CDROM 'fiche says (for the 240z):

17350-E4600, 240z, up to 6/71

17350-E4601, 240z, from 7/71 to 7/73

post-4-1415079191773_thumb.gif

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EScanlon,

Thanks for the details, I certainly don't mind being proven wrong! I suspect they where building '71 series II and '72 in 09/71 because I have seen a few, I'll have to check the VIN's now!

Interesting what is in the microfiche. I am surprised they changed the vapor tank so close to a model change, must have been a real problem with the early ones. I'll have to go look at my friends early '71.

Have fun!

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Tim what is the mfg date of your car. This way we can pin down which tank you need.

Mike: Is your 71 240 a late series I or a series II, what is its manufacture date?

This way we can get down to the nitty gritty details.

This is good detective work by all guys.

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If'n there were two vapor tanks used on the later cars and you figure out which one he needs let me know and I'll check my parts car to see which one it has. I know where two more parts cars are here in town so maybe I can find the right one.

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She's a 6/71 car, and her name is 'Becky'. The '72 tank I tried wouldn't fit. I guess that ought to narrow things down to one part number, I really am glad to have so many knowledgeable people take interest in this discussion! Becky thanks you.

Tim

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The plot THICKENS!

It seems that you have an Early 71, this indicates that you did indeed have the PLASTIC Vapor tank. As to why the metal one won't fit, I would venture that the original support brackets for the 70 and early 71 were the same, and hence were made for the vent holes being in the hatch and not the roof pillar. In late 71 and on, as evidenced in my car, they did start using the metal tanks.

And the reason for all the confusion, is that even though your other points, vents on the pillars and not the hatch, point to a series II you still have a lot of the series I in your car that many of the series II pieces won't fit.

I'm in the same boat (remember Royce telling me I had a 72?), unfortunately, I can't help you with this part, I do have access to a Z boneyard, but finding the plastic tank may be a big problem. I will check, but can't guarantee anything since as you know, the part is old, and being plastic may not have survived well, and cost and IF there's one to be found.

Have you checked with the guys at MSA or Victoria British or some of the other places who advertise Z parts?

Lastly, you said you tried to fit a 72 tank. What exactly was the problem, can you work around it? If you were to modify the inner support beam could you get it to work? if so I can send you pictures of my inner beam and even dimensions.

Sorry to have lifted your hopes so high only to say sorry.

You might also give this guy a call; he has a boneyard in Arizona and the possibilities of a tank in his area being in better condition may be higher: Zcarsofarizona@aol.com his phone number is: 480-510-8164

Feel free to use my name, who knows it might be worth something.

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Well, someone has sold me a plastic tank (by email, as a result of this site). Pending its condition on arrival, I'll have solved a sticky delemma.... Thanks for all the help, I feel like I know my car much better! P.S. If I get any more responses from people having this part, I'd be glad to pass your name on to them if you'd like, Mike....

Later,

Tim

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Originally posted by Tim Walz

P.S. If I get any more responses from people having this part, I'd be glad to pass your name on to them if you'd like, Mike....

Later,

Tim

Yep, Tim, I would like that. My plastic tank is 'fixed', but, I want to replace it if I can.

[m]

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I have a 71 model (built 8/71, also 920 paint), and I'm pretty sure it has a metal tank. I've only dealt with the coupling between the hose from this tank and the main filler hose. The coupling was a nylon plastic which cracked in a spiral direction. It was replaced with copper pipe. Are you sure your 9/71 model is not really a 72 model? I thought August was the last month for 71.

Originally posted by EScanlon

My 71 240 manufactured 9/71 (#920 Gold for anyone that has checked the Paint Code post) HAS a Metal Recovery Tank.

Is it possible that the CD shows that up to a given month, they were plastic, then they were metal with a design change even later?

I took one out of a 72 and it's identical to the one I have.

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Don't take offense, but please read my post further up on this same subject. :rolleyes:

You'll see why I'm laughing.

I've been through this with just about everyone that's seen, worked on, dealt with, etc etc my car. As soon as I figure out how to transfer my photos of the car to the puter and then figure out how to post the pictures here I'll do so, but till then trust me, it's a 71.

Using Vic/Brit's chassis number identification chart, the car by VIN # is a 1971, but by Production Date it's a 72. :eek:

Using www.zhome.com and here's the URL for those of you who want to read the whole story:

http://zhome.com/History/1970or1971.html

"THE SERIES II 240Z's were produced from Jan. 1971 through Aug. of 1971. (identified by the fresh air exhaust vents relocated to the side or "C" pillar of the car, from their prior position on the rear deck lid.)

These cars were also sold as 1971 Model Year Cars here in the U.S....So both Series I and Series II Z Cars were sold as 1971 Model Year cars.

THE SERIES III 240Z's were produced from Aug. 1971 through Sept. of 1972. (identified by the re-designed center console, and seats that folded forward upon release of the latch).

These cars were all sold as 1972 Model Year cars, because they complied with the 1972 Safety and Emissions standards only."

and using another post on the same site:

http://zhome.com/History/DesignChanges.htm

Begin quote:"

VIN #........MFG MONTH.......COMMENT (BELOW VIN#)

HLS30 48863........10 ......

Last 1971 Model Year Car Build (HLS30 51583 latest reported so far). 1972 Model Year - HLS30 48863 (earliest reported so far). Flip Forward Seats, New Hub Caps, Center Console Redesigned, gas tank door latch eliminated, 5 inch wide wheels made standard, new 4sp. trans. design, rear end moved rearward 35mm (about 1.5 inches).

"End Quote

So, as you can see, my car is a 71. ROFL

Now, if you've read this post, my prior post and taken the time to check out the references I gave, you'll note that there are continuous references to "reported". This is due to the fact that Datsun/Nissan unfortunately hasn't given or doesn't have definitive records as to when a given production run ended and another one began. Therefore zhome is resorting to Z owners registering their cars and reporting their years and mfg. dates. Until all the VIN #'s are accounted for, this is the best we can do.

Weeks ago, in discussing another member's automobile (which has a Vent on one Pillar but not the other) we entertained the notion of how different items would have their stocks run out before a given date and others after.

Additionally, we might consider how the VIN # is assigned. Having worked in an assembly line manufacturing plant, the serial number MAY have been assigned "Upstairs" and not ON the assembly floor (i.e. By a file clerk processing orders and NOT the assembly man who stamped the numbers as the cars came down the line). Or by .......

The point being that while VIN # 43000 (just a guess) was SUPPOSED to be the LAST 1971, MY car VIN # 43274 IS by all the "litmus" tests known, a 1971 Production and Model and Registration Year vehicle.:cool::D

OR (Alternative Argument)

NOT NEITHER A 72! :P

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