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05-08-2005, 04:18 PM
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68 Coupe 289
Join Date: Apr 2005
Location: North carolina
Posts: 44
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Your opinion on engine diagnostic
Hi everyone, just wanted some opinions on what is going on with my 68 Coupe. First off its a 289, Holley 650, Edelbrock RPM manafold, milage unknown but receipts say it was rebuilt in 1991. I have some smoke out the breather tube and the exhaust under acceleration. Otherwise it runs great. I have set the valves, carb. and put in new plugs.
Vacuum reads 18 steady. Compression reads, 1 120 lbs. (150 with a teaspoon of oil) 2 135 lbs. 3 145 lbs. 4 145 lbs. 5 135 lbs. 6 130 lbs. 7 125 lbs. 8 135 lbs. I am thinking that #1 and maybe # 7 piston has bad rings. Your thoughts?
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