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| Getting a valve job? https://www.slantsix.org/forum/viewtopic.php?t=14672 |
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| Author: | ESP47 [ Tue Oct 11, 2005 12:09 pm ] |
| Post subject: | Getting a valve job? |
Ive got a 71 Duster with a 225 and its getting horrible gas mileage. Im hovering between 10-12mpg. It has 96,000 miles on the original engine. The exaust leaves black stuff all over my driveway. I heard from a few people that a valve job needs to be done on it to get rid of the black crap and to fix the gas mileage. Ive changed carbs and tuned the engine plenty. I think its something deeper than just the simple things. Does anyone know if these are the symptoms of needing a valve job? And how much it would cost to get this done? |
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| Author: | Pierre [ Tue Oct 11, 2005 12:18 pm ] |
| Post subject: | |
How about starting with adjusting the valves first? May be that easy... If things are bad after that still, then do a compression check. Is it burning oil? |
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| Author: | ESP47 [ Tue Oct 11, 2005 12:41 pm ] |
| Post subject: | |
It burns about a quart, maybe slightly more between changes. |
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| Author: | zedpapa [ Tue Oct 11, 2005 1:32 pm ] |
| Post subject: | gas mileage |
is it an automatic? i had a torque converter go bad on me and my car did the same thing. the way to tell is if it takes excessive throttle to maintain highway speeds. it will power brake fine and seem to be fine but the stator has seized inside. zedpapa |
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| Author: | SlantSixDan [ Tue Oct 11, 2005 1:54 pm ] |
| Post subject: | |
Does your engine oil smell of gasoline? |
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| Author: | ESP47 [ Tue Oct 11, 2005 8:45 pm ] |
| Post subject: | |
No the oil doesnt smell like gas at all. The car is really slow. I mean REALLY slow. I dont even think I could beat a Geo Metro with it. Im not sure if it takes excessive throttle on the highway. It probably does. But around town it takes a whole lot of throttle to get going. |
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| Author: | argentina-slantsixer [ Wed Oct 12, 2005 4:06 am ] |
| Post subject: | |
slipping tranny? |
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| Author: | emsvitil [ Wed Oct 12, 2005 4:12 am ] |
| Post subject: | |
Timing chain coulda jumped a couple of teeth???????????? |
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| Author: | ESP47 [ Wed Oct 12, 2005 10:09 pm ] |
| Post subject: | |
Tranny doesnt slip at all. The car just doesnt go. I have a feeling the wasted gas is because i have to get on the gas so hard just to get to the speed limit. Anyone know why the engine is so slow? Its in time and tuned correctly. |
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| Author: | fourgasman [ Wed Oct 12, 2005 10:54 pm ] |
| Post subject: | |
"Black stuff" from the exhaust is pretty much a dead give away. Slugish runing, soot. Sounds rich to me. Might want to consider visiting a service station and having an exhaust gas analysis done to confirm the rich condition, but sounds pretty likely to me. Make sure your choke is opening all the way, colder weather is coming and a sticky or malfunctioning choke will kill power and waste gas money. |
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| Author: | Jeb [ Fri Oct 21, 2005 8:44 am ] |
| Post subject: | |
Had your timing checked lately? Sounds like it is very retarded. |
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