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Rebuild done. Adjusting valves |
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Guitar Nigel
AMC Apprentice Joined: Jan/24/2015 Location: Southern Califo Status: Offline Points: 104 |
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Posted: Mar/07/2017 at 2:51pm |
Many thanks to everyone that has helped me here on this forum. Took me 14 months to rebuild my '59. Got it started yesterday and broke it in for 20 minutes and have had it around the block a few times. Still needs to be fine tuned.
I adjusted the valves while cold, to get it running, but manual says to adjust valves while hot and running. Does that mean to loosen until the "clacking" starts and then tighten them 1/2 turn or what do you recommend? They are pretty sensitive. Tightening them 1/2 turn will probably leave no gap at all. Edited by Guitar Nigel - Mar/07/2017 at 8:46pm |
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tyrodtom
AMC Addicted Joined: Sep/14/2007 Location: Virginia Status: Offline Points: 6214 |
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I assume you've got the 196 OHV.
You use the same feeler gauges I guess you used to adjust them cold. Running hot, .012 intakes, and .015 exhaust. The valve lay out is IEEIIEEIIEEI |
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66 American SW, 66 American 2dr, 82 J10, 70 Hornet, Pound, Va.
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pacerman
Supporter of TheAMCForum Joined: Jul/03/2007 Location: United States Status: Offline Points: 9060 |
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It is much easier with the long feeler gauges with an angle at the end. I thin open end tappet wrench helps too. Joe
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Happiness is making something out of nothing.
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Guitar Nigel
AMC Apprentice Joined: Jan/24/2015 Location: Southern Califo Status: Offline Points: 104 |
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That is what I was afraid of. Does not look easy but hopefully the rocker arms will not be traveling up and down much.
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If you don't take a chance, you never had a chance!
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tomj
AMC Addicted Joined: Jan/27/2010 Location: earth Status: Offline Points: 7555 |
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on the OHV adjusting the valves is easy -- 20 minutes drive in, drive out. the flathead, which i've never done, sounds dreadful, down there low on the block, burning your knuckles on the exhaust pipe, etc.
luckily, you only have to do it once, generally. i check mine annually (the OHV) but in checking i never end up turning them an eight-turn. that first time though, yeah, you need to do it hot. a little loose won;'t do harm, but tight will burn valves in rapid order. |
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1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19689 |
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The valves should be adjusted/checked every 8K according to the TSM (IIRC), but I did it every other year when I drove a 196 OHV as a daily driver. Averaged 6-7K a year, so 12-14K is good.
The rockers are moving, but once you get a wrench on the adjusting nut it's not hard to keep it there, and you don't have to turn much. If you add 0.003 to the exhaust and 0.002 to the intake measurement you will be very close to correct once the engine warms up fully. Getting the feeler gauge in around the carb is the toughest thing to do! Not so bad with the little 1909 Holley, but the other carbs used (1V and 2V) are bigger and harder to get around. It should sound like a well oiled sewing machine with the valve cover off and hood up. Should be barely able to hear it clicking at idle with hood closed from inside the car, and not at all while driving. If you don't hear a thing at idle hey are probably a little tight. If too loose you could lose a pushrod, but you will hear it long before that happens! As TomJ says, will burn valves in short order if too tight... |
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Frank Swygert
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uncljohn
AMC Addicted Joined: Jan/03/2013 Location: Peoria AZ Status: Offline Points: 5394 |
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While I have not had a 195 Cu In AMC engine I have had a number of engines with solid lifters and adjusting them cold with about .03 added to the specification got them pretty much where they needed to be hot. And again to go along with the rest, if you can hear the clack a teeny bit you won't burn them out.
As a matter of interests the last solid lifter engine I had was a 16 valve Mitsubishi overhead cam engine and at 270,000 miles it was 260,000 miles overdo for it's first valve adjustment. |
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70 390 5spd Donohue
74 Hornet In restoration 76 Hornet, 5.7L Mercury Marine Power 80 Fuel Injected I6 Spirit 74 232 I-6, 4bbl, 270HL Isky Cam |
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vinny
Supporter of TheAMCForum Joined: Jan/05/2012 Location: Calgary Status: Offline Points: 2837 |
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I think the last time I did that job I blocked off the oil upstairs so it wouldn't spray all over everything.
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19689 |
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The 196 doesn't spray oil everywhere. The rockers are oiled through the shaft, just runs down a hole.
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Frank Swygert
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Guitar Nigel
AMC Apprentice Joined: Jan/24/2015 Location: Southern Califo Status: Offline Points: 104 |
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Thanks. Adjusting them while hot and running was not as hard or as messy as I thought it would be. The lifters actually did not move that fast.
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