Ted you could up the anty and get you some .045 k1/wiseco stuff
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| Who makes the best rings for stock .030 over pistons? https://slantsix.org/forum/viewtopic.php?t=37465 |
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| Author: | Aggressive Ted [ Sun Oct 11, 2009 9:55 am ] |
| Post subject: | Who makes the best rings for stock .030 over pistons? |
Folks, The "Torque and Mileage" rebuild I had done 3 years ago took a dump, just 40 lbs in #6 cylinder 125#'s in the others. Four weeks ago I was getting 25 plus mpg, then it went to 23.5 the following week, then 21 mpg last week and 18.8 this week. I had a machine shop do the sort block since it was in the dead of winter when the oil filter took out my engine at 356,000. Now we are back to almost the same conditions, no garage since the house fire and the weather just turned bad and it's blowing and cold.......I know this sounds crazy but I am thinking of doing the work in the drive way, pulling the motor and then pulling the pistons out. I am assuming that it is a broken ring since there is allot of blow by when I pull the PCV. Any sources or thoughts on what would be the best ring mfg and ring type to use would be appreciated. This car is my daily driver and will see occasional track time. SL6 Dan encouraged me to post this and ask, "who is building good rings" since China is supplying alot of auto parts now. Thanks! |
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| Author: | Joshie225 [ Sun Oct 11, 2009 10:00 am ] |
| Post subject: | |
I've always had good luck with Hastings piston rings. http://www.hastingsmfg.com/ I also asked them a tech question a couple years ago and got a good reply. I'd get in touch with them. Otherwise I have a set of stock replacement +.030" pistons and plain cast rings I'd sell really cheap. |
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| Author: | Reed [ Sun Oct 11, 2009 10:08 am ] |
| Post subject: | |
Bummer! Sorry to hear it Ted. Don't have any ring suggestions, just offering my condolences. |
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| Author: | Aggressive Ted [ Sun Oct 11, 2009 10:16 am ] |
| Post subject: | |
Josh, Thanks. Will let you know what I find after opening the engine up. Who knows a piston could be a problem too! Send me a PM on what you want of them I made need them. Who knows what the shop used. They didn't write down the details on the receipt. |
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| Author: | DusterIdiot [ Sun Oct 11, 2009 11:05 am ] |
| Post subject: | Yep. |
Hastings is about the top rung for rings, after that it's the typical sealed power/fed mog stuff. If you are having a machine shop redo the block and bores, moly rings are the way to go...if using the "bottle" brush then standard iron rings will save you money. -D.Idiot |
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| Author: | Aggressive Ted [ Sun Oct 11, 2009 12:33 pm ] |
| Post subject: | |
DI, Since it was already bored .030 oversize 50,000 miles ago are you suggesting to re hone the cylinders and go with standard iron rings for a daily driver with occasional strip use? Would the moly rings hold up better? I do not want to cut corners on parts or longevity. This block has already been throughly cleaned, pressure tested, bored out, etc.....by 410 Machine Service in Buckley. |
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| Author: | Joshie225 [ Sun Oct 11, 2009 12:42 pm ] |
| Post subject: | |
Moly rings last longer because the moly coating holds oil, the upper cylinder lubrication is better and wear is reduced. If you use a fine hone you can use moly rings no problem. THe Hastings web site has several documents in their tech section that make good reading. http://www.hastingsmfg.com/ContentData. ... ntentid=82 |
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| Author: | james longhurst [ Sun Oct 11, 2009 12:42 pm ] |
| Post subject: | |
Agree with above on the Hastings rings. Last set I bought (albeit a few years ago) seated well, no problems with smoking/etc. -James |
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| Author: | DusterIdiot [ Sun Oct 11, 2009 4:52 pm ] |
| Post subject: | Finish... |
Like the others have said if everything looks good you can use the good hone and a good set of stones and get away with a re-ring...it will depend on what you find when you pull it all apart... -D.Idiot |
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| Author: | mopardemon71 [ Wed Oct 14, 2009 12:18 pm ] |
| Post subject: | |
Ted you could up the anty and get you some .045 k1/wiseco stuff .
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| Author: | Aggressive Ted [ Wed Oct 14, 2009 1:03 pm ] |
| Post subject: | |
mopardemon71, I already antyed up quite a bit...... Sounds nice for the next rebuild, but not at 50,000 or so miles since the last rebuild which was very extensive: the block was acid cleaned inside and flushed extensively then ran through a engine dishwasher, milled the block and head, bored the cylinders .030 over, crank ground and polished, rods resized and shot-peened, complete crank/rod/piston balancing, new teflon coated pistons, cam reground for taller lift, advanced cam for torque, new timing chain and gears, oil pump, exhaust inserts, new valve guides, 3 angle valve grind, bowl porting, runner porting, exhaust manifold runners ported and lower manifold ported for 2 1/4 exhaust, new engine mounts, new engine wiring harness, etc......... It is still blowing 35 mph and pouring down buckets of rain and no shelter to work under........ When we get a break in the weather I will get the engine out and on a stand to find out what happened. Good idea though! I am hoping to re-hone and re-ring and get it back on the road. |
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