 Pushrod tube seals, Whats the best way to ensure no leaks? |
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| JeffBowlsby |
 Dec 15 2003, 09:53 PM
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#1
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914 Wiring Harnesses  Group: Members Posts: 8,506 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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Ok so I know that I need to use the Viton seals and meticulously clean the bores of any debris/contaminants/oil. Beyond that my recollection is that there are different approaches:
1. No Lube. Lay em up dry. Is this recommended and does this work? 2. Lube 'em. What works? 30 wt? Silicone grease? 3. Some kind of adhesive...hi-temp silicone?...but dont they need to move with engine expansion? Tell me what to do...so I dont have to do it twice... (IMG:style_emoticons/default/confused24.gif) And Thankyahs! |
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| john rogers |
Dec 15 2003, 09:55 PM
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#2
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Senior Member Group: Members Posts: 1,525 Joined: 4-March 03 From: Chula Vista CA Member No.: 391 |
I use a good coating of hi temp Amsoil synthetic grease. I also use it on the o-rings of our 1987 930 and it never melts or leaks.
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| URY914 |
Dec 15 2003, 10:00 PM
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#3
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I built the lightest 914 in the history of mankind. Group: Members Posts: 120,598 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
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| Jake Raby |
Dec 15 2003, 10:27 PM
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#4
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Teflon thread sealant... Loctite 574 and Viton seals.
I have built hundreds of these engines and this is the only way to seal them completely that I have found.... also ensure that all Burrs and sharp edges are non existant in the case and head bores, else it will cut the o rings and leak like mad. The art of building a leak proof engine was harder than any other TIV aspect I have ever attempted.... I've had it down since about 1991, but still have a leaker that needs some touch up on the dyno every now and then. |
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| 2-OH! |
Dec 16 2003, 08:11 AM
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#5
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Senior Member Group: Members Posts: 552 Joined: 17-October 03 From: Santa Clarita, Kalifornication Member No.: 1,253 |
Jake,
Sorry to seem dumb but... Can you give a quick detail on the Loctite and the Thread sealant...Where and how do you use which... I have the Viton seals.. 2-OH! |
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