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> Changing the Valve Seals, who else has done this?
post May 30, 2009 - 10:15 PM
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tonytutino



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One of my friends offered to help me tackle this perpetual problem of my worn valve seals. I would never think about attempting this on my own, but he has a good deal of knowledge about this engine ( I bought the car off of him to begin with, he rebuilt the motor... but didn't change the seals... fail.) I did some searching and came up with a few things but not enough to really answer everything. Anyways, has anyone done this themselves? I would like to know what exactly I need to prepare for this, including the part number for the seals if anyone would be so kind as to source them. I'm 95% sure this is why i'm burning so much oil, not to mention my plugs get fouled within a few months.
I burn about 2 quarts a month and it is due time something is done about it. Thanks guys.

PS: If someone is willing to help, I would drive to you in a heart beat tongue.gif I don't have much money but I can totally provide delicious, ice cold beer.


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post May 31, 2009 - 7:18 AM
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presure2



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tony, its quite an involved job to do the valve seals.
toyota normally charges ~800$ for the service.
a quick rundown of whats involved goes somthing like this:
you'll need to at the minimum remove the timing belt from the cam gear, remove the cam gear itself, and the cams, pull all the buckets (yes, you need to keep these in the correct order!!), then you need a way to keep the valves from falling into the cylinder when you remove the spring combo. thats where the air compressor comes in, you use the air from that, and fill the cylinder with air to keep the valves closed. then you can use a spring compressor of some type (Hurley97 works @ a toyota dealer, so she borrowed a cool tool that the master tech there made, to compress the springs and remove the keepers and retainers, pull the spring out, then pull the old valve seal out.
a 10mm deep socket works well to press in the new seals, then reinstall the spring and retainer, and another specialty tool to install the keepers. 4X on each cylinder, (16 valves total) and then you can put the car back together.
if your actually gonna do that, and your not sure when the last time things like the timing belt, water pump, cam seal, idler pully, and tensioner were replaced, you may want to at least inspect those peices and replace as needed as well, while its all apart.

ATF does work sometimes, it causes the rubber to swell alittle, which can help stop leaks, although with the way our valve seals harden over the years i dont think it will help much if yours are as bad as they sound.


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Posts in this topic
- tonytutino   Changing the Valve Seals   May 30, 2009 - 10:15 PM
- - Hanyo   it depends on how you tackle the valve seals. Do ...   May 30, 2009 - 11:21 PM
- - tonytutino   I don't have the tools, but if it seems worth ...   May 31, 2009 - 5:22 AM
|- - Hanyo   QUOTE (tonytutino @ May 31, 2009 - 3...   Jun 1, 2009 - 1:34 AM
- - presure2   tony, its quite an involved job to do the valve se...   May 31, 2009 - 7:18 AM
- - tonytutino   yeah i've got one near, don't they require...   Jun 1, 2009 - 3:55 AM
|- - Hanyo   QUOTE (tonytutino @ Jun 1, 2009 - 1...   Jun 2, 2009 - 1:20 AM
- - 56willysnut   Answered your PM. My son's 7AFE was burning t...   Jun 2, 2009 - 5:37 PM
- - tonytutino   ^ hm i never got it? anyways, my compression tes...   Jun 2, 2009 - 8:58 PM
|- - Hanyo   QUOTE (tonytutino @ Jun 2, 2009 - 6...   Jun 3, 2009 - 1:32 AM
- - tonytutino   yep, did the wet test. bad valve seals ftw... but...   Jun 5, 2009 - 6:19 PM
- - presure2   while its not the best thing for the motor, as lon...   Jun 5, 2009 - 7:04 PM
- - 56willysnut   My bad on the Pm, anyway it pretty much covered wh...   Jun 7, 2009 - 8:42 AM
- - Bitter   could be worn valve guides, just the seals themsel...   Jun 7, 2009 - 9:02 AM
- - blu94gt   I'm about to tackle this job in a week, waitin...   Jun 14, 2009 - 4:48 PM
|- - presure2   QUOTE (blu94gt @ Jun 14, 2009 - 4:48...   Jun 14, 2009 - 6:53 PM
- - blu94gt   Picked up the new seals today, along with an overh...   Jun 19, 2009 - 4:48 PM
|- - GriffGirl   QUOTE (blu94gt @ Jun 19, 2009 - 2:48...   Jun 19, 2009 - 5:21 PM
|- - MercuryFree   QUOTE (GriffGirl @ Jun 20, 2009 - 10...   Jun 19, 2009 - 9:27 PM
- - Nartanian   *cough* Sticky *cough*   Jun 20, 2009 - 11:34 PM
- - tonytutino   yes, i would LOVE pictures. that could change my ...   Jun 21, 2009 - 4:17 AM
- - blu94gt   Well sad news guys. I got the car halfway torn do...   Jun 23, 2009 - 4:35 AM


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