 Pushrod tube seal replacement |
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| matt5596 |
 Mar 18 2013, 07:30 PM
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#1
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Member  Group: Members Posts: 102 Joined: 28-September 11 From: Norris, TN Member No.: 13,619 Region Association: South East States  |
(IMG:style_emoticons/default/headbang.gif) I'm replacing the pushrod tube seals on my 1.7 (engine is in car) with Viton seals from Pelican. The existing seals are so bad I could spin the tubes by hand with no effort - no wonder it leaks so bad. So I started with #1, got the old ones off, cleaned the tubes and put the new seals on. I cannot get them back in. I've lubed them with a bit of motor oil and I'm trying to spin as I insert them but they will not go. (IMG:style_emoticons/default/WTF.gif)
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| McMark |
Mar 18 2013, 07:47 PM
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#2
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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 |
There are some early 1.7 engines that have different sized pushrod tubes than everyone else. Compare an old seal with the new ones.
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| Dasnowman |
Mar 18 2013, 07:54 PM
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#3
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You miss 100% of shots you don't take! Group: Members Posts: 265 Joined: 24-May 12 From: Tricities, B.C./ Lake Whatcom Member No.: 14,477 Region Association: Canada |
Oh no I just bought an engine seal kit and it was one of the seals I planed on replacing hope I don't run into the same issue! (IMG:style_emoticons/default/confused24.gif) I did buy the 1.7 seal kit so I hope it's ok.
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| matt5596 |
Mar 18 2013, 07:57 PM
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#4
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Member Group: Members Posts: 102 Joined: 28-September 11 From: Norris, TN Member No.: 13,619 Region Association: South East States |
Here's what came out compared to the new seals. There appears to be a slight difference. So where do I find the early seals?
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| 914itis |
Mar 18 2013, 08:00 PM
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#5
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Advanced Member Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States |
I use Vaseline and a wise grip to hold it and push to snap. Make sure you open the grip enough not to bend it.
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| Dave_Darling |
Mar 18 2013, 08:12 PM
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#6
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914 Idiot Group: Members Posts: 15,063 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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Oil on the O-rings, and twist and push them in. They're a tight fit.
--DD |
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| McMark |
Mar 18 2013, 08:45 PM
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#7
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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 |
Nope, those look right.
The small pushrod tubes only affect a very few engines. That's why you don't see much attention paid. Here's a comparison from German Supply.com Attached image(s) 
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| ThePaintedMan |
Mar 18 2013, 08:50 PM
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#8
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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
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Huh... I didn't know there was a difference on 1.7s. Thanks for the heads up Mark!
Matt, sounds like you just need to give it a little more umph. (IMG:style_emoticons/default/poke.gif) Like Dave and others have said, make sure the grooves are really clean first (I used a few cans of brake cleaner to get rid of all the sludge and grit) and oil them as well. Then make sure you twist and push hard as they go in. You'll feel them "snap" into place. |
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| matt5596 |
Mar 18 2013, 09:07 PM
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#9
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Member Group: Members Posts: 102 Joined: 28-September 11 From: Norris, TN Member No.: 13,619 Region Association: South East States |
Vice grip did the trick. #1 compete. Thanks.
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| stateofidleness |
Mar 18 2013, 11:09 PM
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#10
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Senior Member Group: Members Posts: 810 Joined: 1-September 07 From: Canyon Lake, Texas! Member No.: 8,065 Region Association: None |
I just did this last weekend. I lubed the o-rings and held the tube in place from underneath, while my dad pressed on the tube from the end with the back side of a screwdriver (the round side). This allowed it to fit perfectly in the open end of the tube and while he was applying the "forward" pressure to get it to into the head, I was rotating as it was going in. All went in without much trouble!
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| 914itis |
Mar 18 2013, 11:13 PM
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#11
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Advanced Member Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States |
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| McMark |
Mar 18 2013, 11:27 PM
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#12
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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 |
QUOTE Huh... I didn't know there was a difference on 1.7s. Thanks for the heads up Mark! Only on a very few very early engines. Most 1.7s are 'standard'. |
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