engine tin rubber seal, is this ... normal? |
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engine tin rubber seal, is this ... normal? |
zeezee |
Jul 10 2012, 11:45 PM
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#1
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Member Group: Members Posts: 115 Joined: 16-October 08 From: san ramon, ca Member No.: 9,651 Region Association: Northern California |
I put some new engine tin rubber seals all around. But things don't seem right. I'd think the lip of the engine tin would rest in the bottom lip of the rubber seal - making for a nice leak proof seal. Instead, mine looks like this:
The compartment deck and the engine tin are the same height. The rubber is 2+ inches tall. Engine tin lip is 1/2" above the rubber lip. |
bugsy0 |
Jul 11 2012, 12:15 AM
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#2
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Member Group: Members Posts: 191 Joined: 26-July 06 Member No.: 6,508 Region Association: None |
Same issue on my car. I would think the factory would not have accepted that if it wasn't intentional. another 914 mystery
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EdwardBlume |
Jul 11 2012, 12:22 AM
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#3
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914 Wizard Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California |
The rubber sags and the tin bends. Air flow should still be adequate.
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cary |
Jul 11 2012, 07:17 AM
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#4
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Advanced Member Group: Members Posts: 3,900 Joined: 26-January 04 From: Sherwood Oregon Member No.: 1,608 Region Association: Pacific Northwest |
That won't keep the dust and dirt out.
I have the seal laying on top of the engine tin. |
Lennies914 |
Jul 11 2012, 07:26 AM
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#5
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Slacker Group: Members Posts: 828 Joined: 9-January 10 From: NorCal Member No.: 11,216 Region Association: Northern California |
The engine tin should have a downward slant to it, not perpendicular to to shelf in other words. Your thinking is correct, it should fit into the lower lip of the seal.
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rhodyguy |
Jul 11 2012, 07:36 AM
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#6
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,081 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
the installation of the seal as illustrated is correct.
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ThePaintedMan |
Jul 11 2012, 08:35 AM
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#7
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Advanced Member Group: Members Posts: 3,886 Joined: 6-September 11 From: St. Petersburg, FL Member No.: 13,527 Region Association: South East States |
So which one is correct? The tin slanted downward or parallel to the shelf? Mine has a bunch of gaps too.
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nathansnathan |
Jul 11 2012, 02:27 PM
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#8
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Senior Member Group: Members Posts: 1,052 Joined: 31-May 10 From: Laguna Beach, CA Member No.: 11,782 Region Association: None |
Here are a few pics from the engine bays" thread in the o&h forum. It looks like the tin should be down some from the shelf.
This is Pat Garvey's car, engine sitting quite low there. (IMG:http://www.914world.com/bbs2/uploads/post-5765-1154569672.jpg) (IMG:http://www.914world.com/bbs2/uploads/post-5765-1154569775.jpg) (IMG:http://www.914world.com/bbs2/uploads/post-5765-1154570603.jpg) This one looks to be sitting a bit higher, like it would have the problem described above. (IMG:http://www.914world.com/bbs2/uploads/post-5727-1226435143_thumb.jpg) (IMG:http://www.914world.com/bbs2/uploads/post-5727-1226435285_thumb.jpg) This one it looks like it is sitting down lower. (IMG:http://www.914world.com/bbs2/uploads/post-43-1322319847.jpg) (IMG:http://www.914world.com/bbs2/uploads/post-43-1322319873.jpg) I'm thinking Pat's is right, but I wonder what adjustment there is for that ? |
bandjoey |
Jul 11 2012, 02:41 PM
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#9
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bandjoey Group: Members Posts: 4,926 Joined: 26-September 07 From: Bedford Tx Member No.: 8,156 Region Association: Southwest Region |
Different tin? My 1.8 fit low and in the rubber but the 2.0 sits high. I took 3' foam pipe insulation, split it and inserted it in the gap to make a tighter seal. Looks ugly but seals the gap for low.
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76-914 |
Jul 11 2012, 02:50 PM
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#10
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,504 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California |
God I hate to be a Guinea Pig but I've got one good fit and one poor fit. Once it cools down (102 today) I'll compare and find the difference. Been meaning to do that anyway because it bugs the (IMG:style_emoticons/default/stromberg.gif) out of me. But 1st a question for the those that know; are there any differences in Type 4 tin and could type 1 be incorrectly substituted? In other words I don't want to be chasing my tail. (IMG:style_emoticons/default/shades.gif)
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nathansnathan |
Jul 11 2012, 04:32 PM
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#11
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Senior Member Group: Members Posts: 1,052 Joined: 31-May 10 From: Laguna Beach, CA Member No.: 11,782 Region Association: None |
God I hate to be a Guinea Pig but I've got one good fit and one poor fit. Once it cools down (102 today) I'll compare and find the difference. Been meaning to do that anyway because it bugs the (IMG:style_emoticons/default/stromberg.gif) out of me. But 1st a question for the those that know; are there any differences in Type 4 tin and could type 1 be incorrectly substituted? In other words I don't want to be chasing my tail. (IMG:style_emoticons/default/shades.gif) You mean like, bug tin? It's totally different. I wonder if it is the late engine mount that makes it higher, as Pat's is a 72 with the early. |
ThePaintedMan |
Jul 11 2012, 04:45 PM
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#12
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Advanced Member Group: Members Posts: 3,886 Joined: 6-September 11 From: St. Petersburg, FL Member No.: 13,527 Region Association: South East States |
[quote name='nathansnathan' date='Jul 11 2012, 06:32 PM'
You mean like, bug tin? It's totally different. I wonder if it is the late engine mount that makes it higher, as Pat's is a 72 with the early. [/quote] Wow, those all look GREAT compared to mine. I've got quite a bit of gap in several areas. The late engine mount is a distinct possibility, good call nathan. |
zeezee |
Jul 11 2012, 05:19 PM
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#13
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Member Group: Members Posts: 115 Joined: 16-October 08 From: san ramon, ca Member No.: 9,651 Region Association: Northern California |
The pics above - with the engine sitting lower is what I'd expect.
I have a 72 - converted to a side shifter. Conversion requires a different engine mount correct? Maybe conversion makes the engine sit higher? |
bobhasissues |
Jul 11 2012, 09:30 PM
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#14
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seemingly endless issues with my 914 Group: Members Posts: 218 Joined: 13-February 07 From: Chicagoland Member No.: 7,532 Region Association: None |
Are your new rubbers from Mikey914? His are not formed correctly, they hang straight down as opposed to the factory rubber which when new actually stands upward or at least parallel to the engine shelf. When tucked under the tins the factory rubber actually held some tension against the tins, that is until the rubber becomes old and heat cycled for 30+ years.
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bobhasissues |
Jul 11 2012, 09:30 PM
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#15
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seemingly endless issues with my 914 Group: Members Posts: 218 Joined: 13-February 07 From: Chicagoland Member No.: 7,532 Region Association: None |
Oops hit add twice.
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ThePaintedMan |
Jul 11 2012, 09:41 PM
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#16
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Advanced Member Group: Members Posts: 3,886 Joined: 6-September 11 From: St. Petersburg, FL Member No.: 13,527 Region Association: South East States |
Mine are from Mark and they hang straight down. Wonder if there is a way to pin/screw/glue them to the tin then in several places?
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Lennies914 |
Jul 11 2012, 10:09 PM
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#17
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Slacker Group: Members Posts: 828 Joined: 9-January 10 From: NorCal Member No.: 11,216 Region Association: Northern California |
If you cut the proper angles in the corners of Mark's seals and hog ring them together (like originally done) they fit correctly. The tins do angle down, not flat to the shelf.
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Mikey914 |
Jul 12 2012, 10:17 AM
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#18
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The rubber man Group: Members Posts: 12,670 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
My profiles are identical to the OEM ones. I went through many hours measuring and getting the radius and "hook" to match.
I suspect the problem you are looking at is a function of the mount. If the engine is higher, it will not engage under the tin like it was meant to. The rings on the edges will definately work to hold the edges together and eliminate some of the gap. I would be most concerned with using an additional seal to take up the gap. While there is little chance it would be injested into the intake, there is a fan in the front that will suck it up and shread it. If that happens your airflow will be severly restricted and you could burn up the motor. I'll help here any way I can, but I can guarantee you the profiles match OEM. -Mark |
914_teener |
Jul 12 2012, 06:29 PM
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#19
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914 Guru Group: Members Posts: 5,198 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
[quote name='Mikey914' date='Jul 12 2012, 09:17 AM' post='1708178']
My profiles are identical to the OEM ones. I went through many hours measuring and getting the radius and "hook" to match. I suspect the problem you are looking at is a function of the mount. If the engine is higher, it will not engage under the tin like it was meant to. The rings on the edges will definately work to hold the edges together and eliminate some of the gap. I would be most concerned with using an additional seal to take up the gap. While there is little chance it would be injested into the intake, there is a fan in the front that will suck it up and shread it. If that happens your airflow will be severly restricted and you could burn up the motor. I'll help here any way I can, but I can guarantee you the profiles match OEM. -Mark [/quote I have Mark's seals.......they fit great.....after I had installed upside down the first time! |
Mikey914 |
Jul 13 2012, 01:16 AM
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#20
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The rubber man Group: Members Posts: 12,670 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
[quote name='914_teener' date='Jul 12 2012, 05:29 PM' post='1708433']
[quote name='Mikey914' date='Jul 12 2012, 09:17 AM' post='1708178'] My profiles are identical to the OEM ones. I went through many hours measuring and getting the radius and "hook" to match. I suspect the problem you are looking at is a function of the mount. If the engine is higher, it will not engage under the tin like it was meant to. The rings on the edges will definately work to hold the edges together and eliminate some of the gap. I would be most concerned with using an additional seal to take up the gap. While there is little chance it would be injested into the intake, there is a fan in the front that will suck it up and shread it. If that happens your airflow will be severly restricted and you could burn up the motor. I'll help here any way I can, but I can guarantee you the profiles match OEM. -Mark [/quote I have Mark's seals.......they fit great.....after I had installed upside down the first time! [/quote] If it makes you feel any better, I'm sure you are not the first. (IMG:style_emoticons/default/biggrin.gif) |
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