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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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60 #1 TDC?

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MH

09-08-2006 05:12:19




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Trying to start this old 60, rebuilt the carb, I have good spark on the plugs from the magneto. The engine turns over fine, no fire, just white smoke. I timed it according to the owners manual (original). I was thinking that the #1 cylinder was the one closest to the driver, the manual indicates closest to the radiator. What do you guys think.
Thanks,
Matthew




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Ken L.

09-08-2006 16:52:17




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 Re: 60 #1 TDC? in reply to MH, 09-08-2006 05:12:19  
First, find out if you have good spark. Pull all the spark plugs out, hook them up to the wires and lay them against the block so that they are grounded well. Crank the engine over and watch the plugs. Now you know if you have good spark or not. If the spark is good, remove the valve cover. Watch for the exhaust valve to start to open on 4. That means the you are comming up on #1 TDC. Now watch #1 plug and crank it over 1/2 turn. If you didn't have a spark on #1, it's out of time. If so, try the same thing again but watch all plugs to see if another cyl fires. If so, the hole in the dist or mag that that one fired in should be #1

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RAB

09-08-2006 13:10:27




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 Re: 60 #1 TDC? in reply to MH, 09-08-2006 05:12:19  
#1 is adjacent to the timing gear on ALL old engines. It was the convention - so everyone new what was what for any engine. In those days they obviously used the KISS princple (even if it hadn"t been invented then!).
Rods were, by convention, always marked on the timing side (cam shaft side). Bearing caps likewise. Simple system. Worked well for most and caused havoc for those that didn"t conform.
So your #1 is at the front of the engine.
Regards, RAB

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Tramway Guy

09-08-2006 12:23:33




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 Re: 60 #1 TDC? in reply to MH, 09-08-2006 05:12:19  
Actually, both #1 and #4 will be TDC at the same time, in this case.
Is the impulse working correctly? You should hear a 'snap' when you are cranking it over. If you don't, then you will not get enough spark.
If that is OK, then you need to verify that the spark is being directed to the correct plug at the right time.



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old

09-08-2006 08:25:16




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 Re: 60 #1 TDC? in reply to MH, 09-08-2006 05:12:19  
99% of tractors the #1 is up front or you can also say #4 is the one close to the seat. So I guess you could say your bakwards on that. LOL



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MH

09-08-2006 08:41:04




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 Re: 60 #1 TDC? in reply to old, 09-08-2006 08:25:16  
Sounds like everything else I do, a$$backwards...:) Still, Something is not right, I think I have it timmed right (using the front as #1) just not getting good fire, any suggestions?
Matthew



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old

09-08-2006 09:05:03




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 Re: 60 #1 TDC? in reply to MH, 09-08-2006 08:41:04  
This may sound sort of funny but give it a try. Take the plug wires and swap them side to side on the cap and give it a try. If that doesn't work then put them back the way you had it and then move them over one going the way the rotor turns. I've had the same type of a problem before and doing one of those 2 things has always got them running for me.

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Adam- WI

09-08-2006 06:36:34




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 Re: 60 #1 TDC? in reply to MH, 09-08-2006 05:12:19  
The number 1 cylinder is always at the front of the tractor, radiator end. The cylinders are numbered back from there.



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