 Engine Rebuild?, Is it worth it? |
 Jul 8, 2004 - 10:38 AM
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 Enthusiast  Joined Nov 24, '03 From MA Currently Offline Reputation: 0 (0%)  |
Ok, so the blue smoke on startup is the valve seals. Here's a question:
Do the valve seals get replaced when an engine is rebuilt? It sure looks like just replacing the seals is almost the same cost as completely rebuilding the engine. If that's the case, I might seriously consider it. The car has 90,000 miles on it and it puffs blue smoke when I start it. What are the benefits of rebuilding the engine? If it's going to be rebuilt, are there any improved parts I should use? Keep in mind that I "don't know cat piss" about how to take apart an engine, so I'd be having it done professionally and paying through the nose for labor. Some might say I should swap the engine. My concern with that is I would want to switch the AT to MT (more money), and I don't know what putting a ridiculous amount of power into my car without changing anything else would do to it. That and I'm paranoid so I'd want to rebuild the new engine anyway before putting it in. I really can't afford this option. Let's assume I have $1500 maximum for this project. In any case, I must replace the valve seals somehow. Should I rebuild while I'm at it, rebuild with improvements, just replace the valve seals, or shut up because I don't know what I'm talking about? Thanks! |
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Jul 8, 2004 - 12:09 PM
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Enthusiast Joined Dec 2, '03 From Virginia Currently Offline Reputation: 0 (0%) |
Do a compression test first. They are pretty cheap for a shop to do it, or a tester is only ~25 bucks from an auto parts store. Its easy, all you do is take out the fuel pump relay, take a spark plug out, ground it, screw the tester in where the plug was and then turn the engine over a few times. If the compression is within spec then I wouldn't recommend a rebuild. I don't think the valve seals should be too expensive. They are not very hard to get to, the only tricky part is removing cams and putting compressed air in the cylinders without messing up the timing. But you take a ohc valve spring compresser, and remove the spring take the old seal off, put the new seal on and put the spring back on, then repeat 15 more times.
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Posts in this topic
CoolDoctorJ Engine Rebuild? Jul 8, 2004 - 10:38 AM
CoolDoctorJ Replacing the valve seals really isn't that ex... Jul 8, 2004 - 12:28 PM Snarfer I wouldn't pay anyone to do it for me so I can... Jul 8, 2004 - 2:50 PM Snarfer Actually never mind, I just took a look inside the... Jul 8, 2004 - 9:03 PM CoolDoctorJ Thanks for all the advice... I guess I'll be p... Jul 9, 2004 - 10:59 AM brianforster let me know about this, i have almost the same exa... Jul 9, 2004 - 1:39 PM bonzaisushi valve seals arent any thing to worry about from wh... Jul 9, 2004 - 8:50 PM Digndoug Its not going to hurt anything, just make sure to ... Jul 9, 2004 - 9:03 PM wht95st-02gtivr6 QUOTE (Snarfer @ Jul 8, 2004 - 5:09 PM) Do a compr... Jul 20, 2004 - 5:33 PM 95BlueGT wow 90k and it needs a rebuilt....Are you doing it... Jul 20, 2004 - 7:18 PM CoolDoctorJ Eh... it probably doesn't "need" a r... Jul 21, 2004 - 6:53 AM 97GTinKC 1: Are you sure its the valve stem seals? could be... Jul 21, 2004 - 11:44 AM CoolDoctorJ If I was going to replace the whole engine, why no... Jul 21, 2004 - 11:59 AM Manta5x I had the same problem at around 90k..a big puff o... Jul 21, 2004 - 3:39 PM ivansit0 I think thats a Common problem because My car the ... Jul 22, 2004 - 4:48 PM 97Celica 137k raced almost every day...no smoke...am I miss... Jul 22, 2004 - 4:58 PM
celicaboston1983 hey guys I have the same thing going on kinda noti... Jul 22, 2004 - 5:27 PM |
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