454 timing?
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=3678
Printed Date: November-23-2024 at 6:59pm
Topic: 454 timing?
Posted By: stonethrower
Subject: 454 timing?
Date Posted: May-26-2006 at 12:09am
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I have a 1979 20' southwind bowrider. It has an OMC 454 in it. I just finished replacing the floor and am now in the process of fine tuning my engine. I just replaced the points for an electronic ignition conversion kit. I set the timing to 8 BTC but I have no idea what it should be. Does anyone know or maybe know of a website containing all this useful info?
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Replies:
Posted By: 87BFN owner
Date Posted: August-25-2006 at 5:44pm
I have a 454 marine engine manual, need to know which ignition system you have to tell you the timing setting
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Posted By: 79nautique
Date Posted: August-25-2006 at 7:18pm
your probaly alright where your at just take it for a spin with the engine cover up and listen for a ping under load if it does ping then back the timing off a little the manual says 5-9 depending on the dist unit. Also if the starter drags a little when it's hot then back the timing off a little as well, 2 degrees should do it. The more timing the beter to an extent that it doesn't ping (pre-ignition) helps with performance and fuel consumpsion.
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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique
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