 Variance in Tins... why? |
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| cassmcentee |
 Nov 1 2024, 02:11 PM
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#1
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Member  Group: Members Posts: 225 Joined: 12-July 18 From: Squaw Valley, CA Member No.: 22,304 Region Association: Central California 
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I have these two tins for the rear, why are they different? (holes and notch)
Are the differences year related or something else?  |
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| JeffBowlsby |
Nov 1 2024, 05:21 PM
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#2
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914 Wiring Harnesses Group: Members Posts: 8,774 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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I think there are at least 3 different versions of this tin piece.
Can you post a good complete photo of each of yours to compare them? I have one I will add if its different than yours. |
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| cassmcentee |
Nov 1 2024, 06:02 PM
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#3
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Member Group: Members Posts: 225 Joined: 12-July 18 From: Squaw Valley, CA Member No.: 22,304 Region Association: Central California
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Thanks for taking a look Jeff
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| bkrantz |
Nov 1 2024, 08:49 PM
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#4
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914 Guru Group: Members Posts: 8,173 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains
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QUOTE(JeffBowlsby @ Nov 1 2024, 05:21 PM)  I think there are at least 3 different versions of this tin piece. Can you post a good complete photo of each of yours to compare them? I have one I will add if its different than yours. Interesting. What did Porsche decide to add or change to things poking through the rear tin? |
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| cassmcentee |
Nov 2 2024, 06:31 AM
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#5
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Member Group: Members Posts: 225 Joined: 12-July 18 From: Squaw Valley, CA Member No.: 22,304 Region Association: Central California
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QUOTE(bkrantz @ Nov 1 2024, 09:49 PM) QUOTE(JeffBowlsby @ Nov 1 2024, 05:21 PM) I think there are at least 3 different versions of this tin piece. Can you post a good complete photo of each of yours to compare them? I have one I will add if its different than yours. Interesting. What did Porsche decide to add or change to things poking through the rear tin? That's what I am wondering... The dirty tin pictured was in the car I bought "Ruby" ('73 2.0) from @fiacra The other with less holes from my rusted yellow '72 2.0 (profile pic) |
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| JeffBowlsby |
Nov 2 2024, 11:47 AM
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#6
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914 Wiring Harnesses Group: Members Posts: 8,774 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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QUOTE(cassmcentee @ Nov 2 2024, 05:31 AM) The other with less holes from my rusted yellow '72 2.0 (profile pic) Confusing note, there were no 2.0s in 1972. So is it a 1972 car with a transplanted 2.0 or the original 1.7 modified to a 2.0? After looking into this more, I am inclined to think it is the latter. given the rear tin configuration in your photo. Can you confirm? |
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| JeffBowlsby |
Nov 2 2024, 11:49 AM
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#7
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914 Wiring Harnesses Group: Members Posts: 8,774 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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Looking into this more:
PET says there are three rear tin types. I have designated them as Types A, B and C. But these three types do not account for the 1975-76 cars with the EGR tube from the exhaust that penetrated the rear tin on the pass side. Does anyone have a photo of a 1975-76 (1.8 or 2.0) rear tin with the pass side EGR hole in it to post? Attached image(s)  
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| JeffBowlsby |
Nov 2 2024, 11:53 AM
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#8
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914 Wiring Harnesses Group: Members Posts: 8,774 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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I think this is a Type A or B. Will edit this post when its confirmed. If you have a 1.7L rear tin piece to post that is different than this, please post it and indicate what year it is?
Attached image(s) 
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| JeffBowlsby |
Nov 2 2024, 11:54 AM
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#9
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914 Wiring Harnesses Group: Members Posts: 8,774 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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This is a Type C
Attached thumbnail(s) 
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| JeffBowlsby |
Nov 2 2024, 11:57 AM
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#10
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914 Wiring Harnesses Group: Members Posts: 8,774 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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Some other info bits about the hole sizes and grommets I found, from a post by @bdstone914 , to add the info here:
Attached image(s)   
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| JeffBowlsby |
Nov 2 2024, 11:58 AM
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#11
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914 Wiring Harnesses Group: Members Posts: 8,774 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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Here is another distinction that needs verification:
Attached image(s) 
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| cassmcentee |
Nov 2 2024, 01:47 PM
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#12
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Member Group: Members Posts: 225 Joined: 12-July 18 From: Squaw Valley, CA Member No.: 22,304 Region Association: Central California
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Thanks Jeff, I'll check on my vehicle history...
I was mistaken, my yellow car (the freshly painted tin) is a '73 2.0 with original tin. according to the VIN# "Ruby" the red car (dirty tin) was built 500+ cars later. Maybe @Fiacra knows if Ruby had a transplant, or is that info on the body tag? (engine#) I'll look when the sun comes up. |
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| 914Sixer |
Nov 3 2024, 05:54 AM
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#13
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914 Guru Group: Members Posts: 9,032 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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VW was probably trying to get one piece to work with all the engines used in the 411/412, Bus and the 914
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| fiacra |
Nov 3 2024, 09:07 AM
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#14
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Person.Woman.Man.Camera.TV Group: Members Posts: 477 Joined: 1-March 19 From: East Bay Region - California Member No.: 22,920 Region Association: Northern California
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QUOTE(cassmcentee @ Nov 2 2024, 12:47 PM) Thanks Jeff, I'll check on my vehicle history... I was mistaken, my yellow car (the freshly painted tin) is a '73 2.0 with original tin. according to the VIN# "Ruby" the red car (dirty tin) was built 500+ cars later. Maybe @Fiacra knows if Ruby had a transplant, or is that info on the body tag? (engine#) I'll look when the sun comes up. As far as I know she has the original engine. I only know two of the previous owners and they didn't change the engine. Nice to see Ruby getting such good care! No more dirty tins for her (IMG:style_emoticons/default/beerchug.gif) |
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| bdstone914 |
Nov 3 2024, 09:11 AM
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#15
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bdstone914 Group: Members Posts: 4,731 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
QUOTE(JeffBowlsby @ Nov 2 2024, 11:49 AM) Looking into this more: PET says there are three rear tin types. I have designated them as Types A, B and C. But these three types do not account for the 1975-76 cars with the EGR tube from the exhaust that penetrated the rear tin on the pass side. Does anyone have a photo of a 1975-76 (1.8 or 2.0) rear tin with the pass side EGR hole in it to post? I have one of those tins. Can get a picture later. I must have 15-20 tins and can check if there are more varients. Anyone need one please contact me. |
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| Garland |
Nov 3 2024, 10:51 AM
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#16
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Restoration Fanatic Group: Members Posts: 1,397 Joined: 8-January 04 From: ......Michigan...... Member No.: 1,535 Region Association: Upper MidWest
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Keep in mind that 72 1.7 used a different left side cover plate #2, (that makes 3 left side plates) to accommodate #33 #21 #32, and the diagram shows a 72 cover plate with the additional passageway at the rear. (Here is another distinction that needs verification:) Also shows #27 with the missing 3rd screw hole. This is a heat riser for the intake, only on a 72 1.7
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| JeffBowlsby |
Nov 3 2024, 01:54 PM
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#17
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914 Wiring Harnesses Group: Members Posts: 8,774 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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‘72 914s have a number of unique features…thanks for pointing these out. Makes one wonder about why they developed this way, then changed going forward.
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| bdstone914 |
Nov 3 2024, 02:38 PM
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#18
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bdstone914 Group: Members Posts: 4,731 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
QUOTE(JeffBowlsby @ Nov 2 2024, 11:49 AM) Looking into this more: PET says there are three rear tin types. I have designated them as Types A, B and C. But these three types do not account for the 1975-76 cars with the EGR tube from the exhaust that penetrated the rear tin on the pass side. Does anyone have a photo of a 1975-76 (1.8 or 2.0) rear tin with the pass side EGR hole in it to post? I have one of those tins. Can get a picture later. I must have 15-20 tins and can check if there are more varients. Anyone need one please contact me. |
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| cassmcentee |
Nov 4 2024, 09:22 AM
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#19
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Member Group: Members Posts: 225 Joined: 12-July 18 From: Squaw Valley, CA Member No.: 22,304 Region Association: Central California
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A few more comparison pics
73 early top/73 later bottom My guess is that the cutout would allow the assemblers to get one screw in the lower head tin to help speed up the line.  |
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| cassmcentee |
Nov 4 2024, 09:23 AM
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#20
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Member Group: Members Posts: 225 Joined: 12-July 18 From: Squaw Valley, CA Member No.: 22,304 Region Association: Central California
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