Pushrod Tube seals, viton seals |
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Pushrod Tube seals, viton seals |
Alphaogre |
Jul 28 2015, 11:51 AM
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#1
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Member Group: Members Posts: 460 Joined: 28-May 12 From: San Diego Member No.: 14,487 Region Association: Southern California |
Has anyone used these viton seals before on the pushrod tubes and valve covers? I would be curious if they would help with the leaking or not?
http://www.autoatlanta.com/Porsche-914-Vit...l-Kit-srch.html Pushrod Tube Seal Kit Who wants to constantly perform the dirty, greasy pushrod tube replacement procedure when these space age viton seals eliminate the problem for years! rated at 450. Degrees, if installed properly you should never have to replace the seals again! Kit comes complete with precise instructions and valve cover gaskets. Everything you need except hand cleaner! Consists of: 8 b021 109 345 a; 2 r021 101 481; 1 rtc 1022 make sure that you readjust the valves and check the valve adjuster lugs for damage. Kit consists of: 8 - b021109349b - pushrod tube seal, large - normally $20.00 8 - b021109345a - pushrod tube seal viton - normally $8.00 2 - r021101481 - valve cover gasket - normally $2.40 1 - btc1022...(choose a part on the right to read more) |
saigon71 |
Jul 28 2015, 12:25 PM
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#2
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Senior Member Group: Members Posts: 1,999 Joined: 1-June 09 From: Dillsburg, PA Member No.: 10,428 Region Association: MidAtlantic Region |
I use the good old cork gaskets on the valve covers.
I installed Viton push rod tube seals a few years ago...I highly recommend them. |
DRPHIL914 |
Jul 28 2015, 12:33 PM
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#3
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Dr. Phil Group: Members Posts: 5,766 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
I use the good old cork gaskets on the valve covers. I installed Viton push rod tube seals a few years ago...I highly recommend them. (IMG:style_emoticons/default/agree.gif) I put them in when i replaced all mine this past year, they were recommeded by the late Capt'n Crusty. |
Dave_Darling |
Jul 28 2015, 02:04 PM
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#4
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Cork gaskets, viton o-rings. If you have an early 1.7 car, make sure to check the bore in the cylinder head. Some early ones are smaller.
You can generally speaking get the parts elsewhere for less than AA charges. (And most places have better customer service IMHO.) This forum is a much better resource than "Dr. George's" instruction set, too. The short version of the instructions: Pull the tubes halfway out of the head to replace the seals. No need to pull them out to the point where they run into the suspension console. --DD |
ThePaintedMan |
Jul 28 2015, 02:31 PM
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#5
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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 |
Dave nailed it. You indeed do not have to pull them all the way out, but contrary to what some believe, they can be pulled completely out if you pull the pushrods out first on the couple that run into the console.
Before attempting to change them, take GOOD notes on how the long, snake-like pushrod retainer wire is routed. I got it wrong and it ate into a pushrod (aluminum). Double and triple check that you have it routed correctly when you reinstall by using a mirror and/or cell phone camera. You also want to clean out all oil and debris from the pushrod tube bores before you pull them so you don't get any inside the case. |
McMark |
Jul 28 2015, 02:40 PM
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#6
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I just get them from McMaster-Carr
Small Viton Orings: 9464K33 ($8.20 for 25) Large Viton Orings: 9464K35 ($8.43 for 25) I've used these without issue. I'm also just about to order some X-shape rings to try. Small X-Rings: 6540K152 Large X-Rings: 6540K154 I don't know how well these work. I haven't tried them yet. |
Alphaogre |
Jul 28 2015, 05:09 PM
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#7
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Member Group: Members Posts: 460 Joined: 28-May 12 From: San Diego Member No.: 14,487 Region Association: Southern California |
The short version of the instructions: Pull the tubes halfway out of the head to replace the seals. No need to pull them out to the point where they run into the suspension console. --DD WHAT !?!?! you don't have to pull the full motor and everything down to the pistons to replace these?!?! DAMN IT! (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/biggrin.gif) Thanks for the info, I have the whole thing pulled apart anyway, so I figure now would be a good time to change everything. Are the cork ones more prone to leaking then the viton seals for the valve covers? (my cork ones have leaked in the past. I think they just get saturated. I saw this article that was pretty interesting. Anyone add the lips to the valve covers? http://www.pelicanparts.com/techarticles/9...alve_covers.htm |
TheCabinetmaker |
Jul 28 2015, 05:18 PM
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#8
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Cork valve cover gaskets. Period! Use permatex aviation form a gasket, or gaskacinch to glue gaskets to cover, and a thin coat of bearing grease (not the blue high temp stuff) on the head side of gasket. Done right, they will not leak.
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Highland |
Jul 28 2015, 05:26 PM
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#9
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Senior Member Group: Members Posts: 513 Joined: 8-August 11 From: San Diego, CA Member No.: 13,418 Region Association: Southern California |
Alphaogre, since you have to order 25 at a time from McMaster-Carr, I'd be glad to send you 8 each from my last order if you PM me your address.
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914forme |
Jul 28 2015, 06:04 PM
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#10
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Times a wastin', get wrenchin'! Group: Members Posts: 3,896 Joined: 24-July 04 From: Dayton, Ohio Member No.: 2,388 Region Association: None |
I used Loctite pipe sealant on the O-rings, they never leaked. I hate oil leaks!!!!!
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Elliot Cannon |
Jul 29 2015, 10:49 AM
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#11
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None |
Used by FAT Performance, European Motor Works and the California Central Coast School of High Tech Stuff. But (IMG:style_emoticons/default/WTF.gif) do they know? (IMG:style_emoticons/default/av-943.gif)
Attached image(s) |
Mikey914 |
Jul 29 2015, 10:57 AM
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#12
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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 |
Cork or silicone. I make both. Personally I like the cork best. I have made both versions 1/16" thicker than OEM and slightly wider to seat better than the others on the market.
Selling point on the silicone is they are reusable. Just my .02 |
Alphaogre |
Jul 29 2015, 11:57 AM
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#13
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Member Group: Members Posts: 460 Joined: 28-May 12 From: San Diego Member No.: 14,487 Region Association: Southern California |
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Alphaogre |
Jul 29 2015, 12:05 PM
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#14
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Member Group: Members Posts: 460 Joined: 28-May 12 From: San Diego Member No.: 14,487 Region Association: Southern California |
Used by FAT Performance, European Motor Works and the California Central Coast School of High Tech Stuff. But (IMG:style_emoticons/default/WTF.gif) do they know? (IMG:style_emoticons/default/av-943.gif) Thats interesting, is that the Locktite pipe sealant in the photo? |
Mark Henry |
Jul 29 2015, 12:21 PM
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#15
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Used by FAT Performance, European Motor Works and the California Central Coast School of High Tech Stuff. But (IMG:style_emoticons/default/WTF.gif) do they know? (IMG:style_emoticons/default/av-943.gif) Thats interesting, is that the Locktite pipe sealant in the photo? No that is RTV... I think I'm going to cough....hack hack... BTW I use to use the Loctite pipe sealant, but I been using DOW 55 molycoat O'ring lube, which is a grease. |
Dave_Darling |
Jul 29 2015, 05:47 PM
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#16
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
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914_teener |
Jul 29 2015, 06:46 PM
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#17
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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 |
e='Jul 29 2015, 11:05 AM' post='2216313']
[quote name='Elliot Cannon' post='2216285' date='Jul 29 2015, 09:49 AM'] Used by FAT Performance, European Motor Works and the California Central Coast School of High Tech Stuff. But (IMG:style_emoticons/default/WTF.gif) do they know? (IMG:style_emoticons/default/av-943.gif) [/quote] Thats interesting, is that the Locktite pipe sealant in the photo? [/quote] Ignore that photo ........... It is infamous here and will lead you down the yellow brick road to be attacked by flying monkies (IMG:style_emoticons/default/laugh.gif) (IMG:style_emoticons/default/stirthepot.gif) |
pcdarks |
Jan 22 2021, 03:51 PM
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#18
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Member Group: Members Posts: 80 Joined: 22-June 13 Member No.: 16,037 Region Association: None |
Thats interesting, is that the Locktite pipe sealant in the photo?
[/quote] Ignore that photo ........... It is infamous here and will lead you down the yellow brick road to be attacked by flying monkies (IMG:style_emoticons/default/laugh.gif) (IMG:style_emoticons/default/stirthepot.gif) [/quote] So then what is the orange stuff in the picture? |
dr914@autoatlanta.com |
Jan 22 2021, 04:37 PM
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#19
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914 Guru Group: Members Posts: 7,866 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
yes and once we install them no one ever returns for replacement, they are that good. I remember years ago when 914s were regularly driven and before viton, we were replacing pushrod tube seals once a year, was a really filthy good business, AND one would get a revalve adjust at the same time. I did it on my back more than once that for sure and got covered in grease oil and dirt
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rjames |
Jan 22 2021, 05:30 PM
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#20
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I'm made of metal Group: Members Posts: 3,933 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
I've reused the cork valve cover gaskets at least a half-dozen times. The only time it has ever leaked was when I shifted the gasket out of position messing with the cover retaining bale. --DD (IMG:style_emoticons/default/agree.gif) |
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