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 Post subject: stock motor questions
PostPosted: Thu Dec 08, 2011 1:02 am 
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just a few questions I have an AH code motor on the code chart it says 73-74 1600 8mm bolts with case savers. is this a good motor to start withor is it not worth putting money into? I pushed my crankshaft back and forth and it seemed to have a lot of endplay how much is acceptable and is this easily repaireable? when I brought this thing home I turned the key and it fired right up the very next day i tryed it and it would not start it just sputters takes off for a sec and putters to a hault. I may have left the key on all night any ideas?

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PostPosted: Thu Dec 08, 2011 1:13 am 
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depends on how much end play you have on the motor it may be time for a new case you can remove the flywheel and put shims between the flywheel and motor to take end play out also what carb and distributor do you have on it we have had problems with the stock vaccumm advance dist or maybe you are not getting enough to the motor


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PostPosted: Thu Dec 08, 2011 1:54 am 
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endplay is enough I can see it move not just feel it motor is not original car is a 70 and autostick could someone have left some shims out when changing to a flexplate? carb is a 34 pict 3 dist. is i believe an 009 with dual vacumm ports which one is just plugged off. pulled the carb apart and cleaned it real good and that didnt change it at all. the solenoid on side of carb has power going to it but doesnt sound like its clicking with key on and off. does this turn off fuel flow or just idle air? does the same wether i open the throttle or not.

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PostPosted: Thu Dec 08, 2011 7:35 am 
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Does it have stock mechanical fuel pump? Check it if so, try electric and see if it still quits. Sputtering makes me think gas issue. After bowl empties the carb may be having to wait on gas. Hope this helps.


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PostPosted: Thu Dec 08, 2011 7:37 am 
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The shut off may be bad as you said, take it out and cut the plunger off. Most people do. They're high.


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PostPosted: Thu Dec 08, 2011 1:37 pm 
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I was tthinking how to bypass it i never thought of just cutting it off thanks. thats just there for deiseling and run on right?

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PostPosted: Thu Dec 08, 2011 1:45 pm 
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the carb is getting plenty of fuel to it ive pulled the drain several times just to make sure. the accel pump is squirting fuel everytime i hit the throttle. ive pulled the supply line and stuck it in a fuel can to eliminate contamination in fuel. ill try wacking the plunger on that valve tonight and see what happens. its pising me off im about to bite the bullet and buy a new carb. anyone have a known good weber setup around columbus they want to sell?

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PostPosted: Thu Dec 08, 2011 4:28 pm 
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Have you checked the points?


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PostPosted: Thu Dec 08, 2011 6:01 pm 
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bigboy77 wrote:
Have you checked the points?

If you left the key on this could be it.or not getting fuel.you can shim the flywheel,but if you tear it down to build a new motor a good machine shop(VW) can check your block,but it doesn't sound like it's to bad.just needs fire,fuel and air.Chad :mrgreen:

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PostPosted: Fri Dec 09, 2011 12:49 am 
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you need to measure the endplay. good endplay is .004 to .006 . if it is to bad shimming will not help it. if you do dicide to shim it look when you remove flywheel to see how much play is between bearing and case.


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PostPosted: Wed Jan 11, 2012 11:53 pm 
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I think i figured it out. I gravity fed the carb and seen fuel pouring out under the throttle blade. anyone know why a solex 34 would do this? I dont think its the float because its not pouring out the vent like it would.

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PostPosted: Thu Jan 12, 2012 12:41 am 
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They have been known to freeze and bust if water was present.

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PostPosted: Fri Apr 27, 2012 6:54 pm 
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snagged a dial indicator from work today and measured my endplay. came up with .120". i know this is bad but how bad? does this sound repairable with machine work or should I start looking for a block?

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PostPosted: Sat Apr 28, 2012 7:13 pm 
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It is bad . You need to take it apart to see if it can be fixed . Take to Drews and see if they can save it .


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PostPosted: Sat Apr 28, 2012 11:23 pm 
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said he left the key on.
bigboy77 wrote:
Have you checked the points?


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PostPosted: Mon Apr 30, 2012 6:04 pm 
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Rimco now has a process for repairing blocks that the thrust has worn too far. .120 is a ton. They weld it up and remachine it to stock specs. Costs $60 last time I talked to them. But if you're gonna stay stock, may be easier just to try n find a decent used block.


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PostPosted: Mon Apr 30, 2012 8:27 pm 
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Sounds like I need to buy a running motor just to get me through the year. If I tear this thing down and get it machined it we be against my beliefs to put it back together a 1600.

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