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| driving on dead cylinder; posible damage? | |
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| Tweet Topic Started: Feb 15 2012, 09:29 PM (2,326 Views) | |
| 92 geo 4 door | Feb 15 2012, 09:29 PM Post #1 |
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New Member
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I have a 92 1.0 liter with number one cylinder dead. I think it might be a burnt exhaust valve. I need to get to work untill I can swap heads. Will driving it cause any lower end damage? I don't take it over 60 and can't help but take off slow.
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| LukeJ88 | Feb 15 2012, 09:34 PM Post #2 |
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Elite Member
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I don't think it will hurt anything (dont quote me on this) but eventually it will just crap out going down the road and you'll be stuff. It took mine a few weeks to do this. If it feels like the engine is skipping/missing at cruising speed, it's about to happen. |
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| Jaimenv | Feb 15 2012, 11:22 PM Post #3 |
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GEAR HEAD
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Long term it will damage the pistons either in the dead #1 or the others. Try to figure out if the burnt exhaust valve was caused due to a plugged EGR system or oil getting past the rings on the affected cylinder. Sometimes the intake valve stem seal fails. If you swap heads before correcting the problem you will have the same problem occur again. |
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| 92 geo 4 door | Feb 16 2012, 04:35 AM Post #4 |
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Engine does not smoke. Don't know if egr is pluged. A couple of years ago, when the car was my sisternlaws, she put tomuch oil in. I had the joy of fixing it. The aircleaner housing was coated and filter was soaked. Would this have caused it? Where is the egr and how can I test it? Thanks. |
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| Woodie | Feb 16 2012, 07:03 AM Post #5 |
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Driving a Metro burns the valves, no need to look for a particular reason unless it burned a valve in less than 100K miles. You should replace the rings at the same time you replace the head, new head will usually pull oil past old rings. |
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| 92 geo 4 door | Feb 16 2012, 07:19 AM Post #6 |
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Odometer shows 78000. No hundred thousandths place. So I'm not sure how many miles on engine. Engine does not smoke. Didn't plan on replacing rings. Do you think I could get lucky? How does new head pull oil past rings? |
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| bansheetaz | Feb 16 2012, 08:01 AM Post #7 |
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it wont hurt the cylinder/piston thats dead. it will just accelerate the wear in the other 2 by making them work harder. |
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| sphenicie | Feb 16 2012, 10:23 AM Post #8 |
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I do not think you will do much damage in the short term. BUT you are putting uneven loads on each of the three parts of the system, right down to the crank. Take it easy, you should be ok. . Once again I will preach to all about putting in rings without boreing the cylinders, you are wasting your time in the long run. unless you have a high quality micrometer and high quality hone and know how to use them, and know how to end gap your rings, you can actually do more damage than good. save your time and money, put it toward a full rebuild down the road. . do it right once, or do it half way twice! your car, your cash, your call. GL |
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| Coche Blanco | Feb 16 2012, 10:32 AM Post #9 |
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Troll Certified
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I agree, but I disagree. If you do the work yourself it's just a few hours to completely rebuild the engine. If you can get another 100k out of the STD bore engine on 200 dollars worth of parts, why not? I agree that .5mm over is a good idea, but it's not in everyone's immediate budget. |
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| 92 geo 4 door | Feb 16 2012, 11:08 AM Post #10 |
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When I change the head next week I will do the kerosine test. The engine don't smoke so I think my rings should be ok. I ordered a rebuilt head. 245.00 shipped to my door. All I have to do is put old one in same box and use prepaid label to send core back. Is this a good deal?
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| Coche Blanco | Feb 16 2012, 11:34 AM Post #11 |
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Troll Certified
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Maybe. No one can really tell you. I would be sure to pull the cam and see if the lifters are free or not. |
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| LukeJ88 | Feb 16 2012, 11:48 AM Post #12 |
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Elite Member
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Make sure the valve guide seals are new as well. |
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| 92 geo 4 door | Feb 16 2012, 12:21 PM Post #13 |
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Head comes completly refurbished. Check out cylinder heads international. They are in Texas.
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| sphenicie | Feb 17 2012, 12:20 AM Post #14 |
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I feal a certian responsibility when i speak up on major engine work. if you are going to pull the pistons to re ring, why not put in new rod bearings? Well then why not mains while you have it apart? if you are going to buy a head gasket kit, $100, unless you get a PUFF AUTO gaasket kit, new head bolts, $35, to change a $7 valve, whats the point? . spend a dollar to save a dime. You all bitch about Puff gaskets, $15 cheaper than good ones, so you can buy new gaskets again, 10k down the road. I'm not makeing any thing off it either way, your car your cash your call, . learn from my mistakes, just hope i can save you some money, in the long run. |
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| Woodie | Feb 17 2012, 06:34 AM Post #15 |
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That's what everyone thinks until they do the head and find that it NOW smokes. |
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