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Spark plugs, misfires, and general ignition system |
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FSJunkie
AMC Addicted Joined: Jan/09/2011 Location: Flagstaff, AZ Status: Offline Points: 4741 |
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Well, if it's an engine out of a 1969 then it's not a 195.6, but a 199 or a 232. Those are completely different engines.
Anything from 5* to 10* BTDC at 500 RPM with the vacuum hose disconnected will make a 199 or 232 idle happily. Setting the timing with the hose connected or with the engine idling faster than 600 RPM will cause you problems. |
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1955 Packard
1966 Marlin 1972 Wagoneer 1973 Ambassador 1977 Hornet 1982 Concord D/L 1984 Eagle Limited |
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mtrosclair
AMC Nut Joined: Feb/05/2022 Location: Metairie LA Status: Offline Points: 474 |
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Correct, it is a 199 with about 450 miles since rebuild.
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1963 Rambler Classic 550
Originally a 196, this one has a 199 from a 69 American. |
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mtrosclair
AMC Nut Joined: Feb/05/2022 Location: Metairie LA Status: Offline Points: 474 |
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I have fiddled with this thing all morning, but I just cannot get it to like a 500 RPM idle. 600 RPMs it seems to be completely OK with it. I’ve got it pretty smooth, but dropping down to 500 it’s lumpy and it’s makes noise like it’s trying to die.
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1963 Rambler Classic 550
Originally a 196, this one has a 199 from a 69 American. |
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Trader
AMC Addicted Joined: May/15/2018 Location: Ontario Status: Offline Points: 6762 |
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232 idle factory specifications were 550 to 600 RPM depending on year, 5 typical but up to 10 degrees advance for some applications.
Fine tune it with a vacuum gauge if you really want to know what the engine likes.
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mtrosclair
AMC Nut Joined: Feb/05/2022 Location: Metairie LA Status: Offline Points: 474 |
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That is a tool I actually don’t have, I guess I need to get one.
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1963 Rambler Classic 550
Originally a 196, this one has a 199 from a 69 American. |
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FSJunkie
AMC Addicted Joined: Jan/09/2011 Location: Flagstaff, AZ Status: Offline Points: 4741 |
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Set the timing at 600 RPM then. Should still work fine.
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1955 Packard
1966 Marlin 1972 Wagoneer 1973 Ambassador 1977 Hornet 1982 Concord D/L 1984 Eagle Limited |
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mtrosclair
AMC Nut Joined: Feb/05/2022 Location: Metairie LA Status: Offline Points: 474 |
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So I got a vac gauge and following procedure I found online I still ended up at about 10 degrees, it’s running pretty well now.
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1963 Rambler Classic 550
Originally a 196, this one has a 199 from a 69 American. |
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Trader
AMC Addicted Joined: May/15/2018 Location: Ontario Status: Offline Points: 6762 |
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That's just fine.
Don't sweat over factory specifications like this that are decades old with much different fuel.
My neighbor's 1929 Hump Mobiles, straight 8's, he was trying to tune them to factory specification and they ran like crap at 0 degrees advance, 400 RPM idle. 5 degrees, carburetor adjustment, 500 RPM idle, 91 octane fuel and they run like a charm now. Spark plugs on that thing are massive things and dual point distributors in 1929! |
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1948kaiser
AMC Addicted Joined: Jan/25/2015 Location: south west flor Status: Offline Points: 819 |
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are the flat springs that hold the cap on are they tight or loose?
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mtrosclair
AMC Nut Joined: Feb/05/2022 Location: Metairie LA Status: Offline Points: 474 |
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I'm not sure which springs you're referencing? Also, I'm still getting a little bumpy idle, its not bad but I feel like it should be smoother.
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1963 Rambler Classic 550
Originally a 196, this one has a 199 from a 69 American. |
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