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I found this and it helped,United Engine and Machine Co. got a couple in so far!
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You're doing double spirolocks, right?
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Donnie Wang 1984 BUICK Grand National with a baaad alcohol and nitrous chaser habit. 100% Methyl Alcohol Injected/Nitrous Oxide Assisted/Forced Inductions FI91X Turbocharged/TA Performance blocked/M&A headed/DRW TH475 Transmission/Neal Chance Racing Converters Pro Mod Torque Converter/Moser Engineering 12 Bolt Rear Axle Housing Warning: Do not try this at home without proper adult supervision. Ultimate Stage I BUICK V6 v3.2 GN details 9.19@145 from a 224 CID 5.73@122.1 in the 1/8 mile. Latest best. 1.28 60 foot. 'Perseverence is the key to innovations endless possibilities and varieties locked within each of us.' |
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To install the spiro-lock into the piston pin hole. First you have to pull both end of the spiro wire into a 1/4in tall spring. using a needle pick, walk the spiro-spring-lock into the groove. By pulling both end of the lock into a spring. the out side diameter is reduce about .010, once the spring is stack into the piston groove, it will retain its orginal diameter.
. This required alot of time, so be carefull with the needle pick. don`t forget to use some oil.Last edited by steveX : June 4th, 2008 at 10:03 PM. |
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I saw this in the January 2008 issue of Circle Track magazine. Precision Engine Service - The Lock In Tool - A Tool To Make An Unpleasant Job Easier — Home
704.843.5477 has a special tool for this. Having the right tool for the job is a great asset even if you do not do a lot of them. My $0.02, time is $$$, so the time I spent messing with the locks, I could have bought the tool and be done with it. And it would be a whole lot easier the next time the engine gets freshened. Now if I can figure out how to scan and post the article...have to really reduce the scan resolution to post. Each page is a separate file. I hope it's useful information...
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'87 GN T-Tops and all stock - a garage queen NOS LC2 and LM9 engines decorating the shop Current project... '87 GN build-up for a stealthy street prowler... currently working on the mill |
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The guy at JE that wrote the spirol lock instructions has these hands: http://www.engr.uconn.edu/ece/Senior...metalHAND8.jpg
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Ken B. |
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Nice job Ken. I needed a good chuckle.
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__________________
'87 GN T-Tops and all stock - a garage queen NOS LC2 and LM9 engines decorating the shop Current project... '87 GN build-up for a stealthy street prowler... currently working on the mill |
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If you plan to use 2 spiro locks per side, which is the preferred method, the pistons have to be spec'd for it.
__________________
Donnie Wang 1984 BUICK Grand National with a baaad alcohol and nitrous chaser habit. 100% Methyl Alcohol Injected/Nitrous Oxide Assisted/Forced Inductions FI91X Turbocharged/TA Performance blocked/M&A headed/DRW TH475 Transmission/Neal Chance Racing Converters Pro Mod Torque Converter/Moser Engineering 12 Bolt Rear Axle Housing Warning: Do not try this at home without proper adult supervision. Ultimate Stage I BUICK V6 v3.2 GN details 9.19@145 from a 224 CID 5.73@122.1 in the 1/8 mile. Latest best. 1.28 60 foot. 'Perseverence is the key to innovations endless possibilities and varieties locked within each of us.' |
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