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  #11  
Old 09-06-2018, 09:48 AM
Cumminscj Cumminscj is offline
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That is the proper test procedure. If I remember correctly when you get up around 8-10degrees of slop the chain can jump. Use the marks on the crankshaft to measure properly.
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  #12  
Old 09-06-2018, 02:20 PM
Tmac in Folsom Tmac in Folsom is offline
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Boat: MasterCraft, 1985 Stars & Stripes, 351, Powerslot
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thank you for your input....I did check the Dizzy advance springs and they are fine...it's basically a brand new Dizzy.

Regarding slop in the timing chain, I did turn the crank while examining the rotor last night and the "play" seems minimal. I didn't think to check out the timing marks on the harmonic balancer while doing this test but will do so tonight.
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  #13  
Old 09-06-2018, 05:25 PM
occva occva is offline
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  #14  
Old 09-22-2018, 10:47 AM
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pbgbottle pbgbottle is offline
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Sounds like you need to clean the carb to me I know u had it rebuilt. But , It runs when you advance the timing because it most likely is dumping tons of fuel down the engine. And those epoxy coils have always given me a headache. I switched back to my 40 year old oem coil and all my spark issues have been solved and that is with my pertronix 2 EI module.
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