The cheap way is to just keep adding oil.....
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| Rings and valve seat regrind . https://slantsix.org/forum/viewtopic.php?t=49977 |
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| Author: | Hewy [ Thu Oct 04, 2012 2:03 pm ] |
| Post subject: | Rings and valve seat regrind . |
Here is the engines story or more applicable my story. The truck has set for many years and will start and run very smooth, that is idle down nice after initial warm up. Prior to start the oil and filter was changed and added some Mystery Marvel oil. It smoked profusely for several start ups, then settled down, to a light blue smoke. Something, then is getting by the rings or valve stems or both. It has not been driven other that around may lot 1/2 acre so can't get any real road time speeds. Compression is about 95 -100 psi each hole. $ won't allow a complete rebuild, so as you can see were I'm going ,will rings and valve grind be any benefit ? Thanks {1964 Dodge D100 225 /6 stock.} |
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| Author: | emsvitil [ Thu Oct 04, 2012 2:39 pm ] |
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The cheap way is to just keep adding oil.....
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| Author: | Hewy [ Thu Oct 04, 2012 4:36 pm ] |
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Quote: The cheap way is to just keep adding oil.....
Ed, then the smog cops come a knocking. 
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| Author: | mopar [ Thu Oct 04, 2012 5:26 pm ] |
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..." and added some Mystery Marvel oil." How much Mystery Marvel oil is the right amount? 10% Mystery Marvel oil? 20% Mystery Marvel oil? Thanks |
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| Author: | CNC-Dude [ Thu Oct 04, 2012 11:17 pm ] |
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You are really in a Catch 22 situation. Re-ringing an engine without boring it is usually a band-aid and a waste of time and energy. You might consider using a leakdown tester, then you might can figure out if it is only the rings or valve seats. Its probably both, so your back to the no money to do it the right way again. |
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| Author: | Mark Mallett [ Fri Oct 05, 2012 3:36 am ] |
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I would adjust the valves before considering a rebuild. A tune up would also be a good idea but if it is running in an acceptable manner do the valves first. |
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| Author: | Hewy [ Fri Oct 05, 2012 5:47 am ] |
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Valves were adjusted hot and running. Haven't done leak down, thanks for reminder. I'll do another compression test.Is the range about right for old motor ? I adjusted timing by vacuum rather than timing mark. Runs so nice. |
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| Author: | ceej [ Fri Oct 05, 2012 6:18 am ] |
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Go put a couple hundred miles on it. Could clear up. Replace the PCV first. CJ |
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| Author: | Aggressive Ted [ Fri Oct 05, 2012 8:48 am ] |
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I have resurrected many motors from the dead or near dead. Just give it some time for the Mystery oil to work. I have also used used transmission oil, synthetic oil and mystery oil. Usually a quart per oil change. So that means you have to do some driving to get the rings freed up. Usually after 1500 miles you will see a difference. Keep some spare oil filters handy. If the oil is very dirty or gritty change the filter and a some more oil. Keep driving it and make sure it comes up to temp. Run a 180 stat. My current engine is very old and was sitting in a barn under a pile of hay, no dipstick, distributor, fuel pump or carb and was very rusty.... Three years later I am still driving it. The rings freed up and I am still low on power but it gets pretty good mileage for it's condition. Just give the oil time to clean out your engine. |
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| Author: | Jeb [ Fri Oct 05, 2012 8:56 am ] |
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Mine quit smoking when I changed the oil and got rid of the marvel mystery oil. I too used it to resurrect a motor. Then switched to 15W-40 diesel oil and shortchanged the oil two more times at 500 mile increments. |
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| Author: | WagonsRcool [ Fri Oct 05, 2012 9:29 am ] |
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At the top of my list of suspects would be failed valve stem seals. The old-school (cheap) polyacrylate seals would petrify & crumble. Granted that valve guides could be worn & bores/rings could be shot. I'd either "band-aid" repair with new seals, or go "all in" with a full rebuild. Your chances of getting good ring seal with just a hone are at best, slim to decent. If there's any perceptable ridge at the top of the bore- I'd change that to almost none. |
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| Author: | kielbasa [ Fri Oct 05, 2012 10:40 am ] |
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As long as the bore is smooth and not too out of spec... 're ring and a hone will work. |
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| Author: | Aggressive Ted [ Fri Oct 05, 2012 11:01 am ] |
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It's a stock 64.......how many miles? |
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