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Farmall & IHC Tractors Discussion Forum
:

A and super A difference.

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Olliejunkie

01-13-2018 17:06:47




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Working on a friend's A. We went and picked up a used engine. All the casting numbers match I think but it has a water pump and the engine on it didn't. I'm wondering if we got a super A engine and if so will it bolt right in? Thank you Paul




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Olliejunkie

01-13-2018 21:27:47




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 Re: A and super A difference. in reply to Olliejunkie, 01-13-2018 17:06:47  
Thank you . Glad I asked..I do not plan on messing with the engine unless it needs to be. It ran when pulled and I'm hoping it will again. Compression seems pretty low but I'm hoping it will come up and run.



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Jim Becker

01-13-2018 20:08:57




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 Re: A and super A difference. in reply to Olliejunkie, 01-13-2018 17:06:47  
Correctly adding a water pump requires adding both the thermostat and a different head gasket. If you are not taking the head off, I would assume they also installed the correct head gasket. So, I'd leave the pump in place.

If you are going to rework engine internals, clean the water jacket then it is your (his) choice on whether to put it back with the pump. I doubt the tractor will ever be worked hard enough to actually need the water pump.

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Olliejunkie

01-13-2018 18:21:42




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 Re: A and super A difference. in reply to Olliejunkie, 01-13-2018 17:06:47  
Thank you. Someone must have added the pump. Pretty sure there was no hyd pump. Would you guys run a water pump or not? Someone put a thermostat on it too. Should I remove it?



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Red Dave

01-14-2018 10:13:05




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 Re: A and super A difference. in reply to Olliejunkie, 01-13-2018 18:21:42  
If you keep the water pump, keep the thermostat. If you remove the pump, remove the thermostat, and also make sure that you have a head gasket in it intended to be used without a water pump because the water passage holes in the gasket are a bit larger.

I have a B (same engine as an A) that I put a water pump and thermostat on because it got hotter than I liked when it pulled a plow. It is still on after about ten years, no problems. It helps cooling under heavy loads, but causes no problems under light loads.

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kris Jensen

01-13-2018 18:13:40




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 Re: A and super A difference. in reply to Olliejunkie, 01-13-2018 17:06:47  
major difference is the super A has a bump out on the timing gear casting
to which was fitted a hydraulic pump, driven off the timing gears.
If you don't need or want the hydraulc pump, you would need a plate to cover the opening.
But sounds like you have found the correct engine.



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Jim Becker

01-13-2018 17:55:18




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 Re: A and super A difference. in reply to Olliejunkie, 01-13-2018 17:06:47  
Neither the A nor Super A came with a water pump. But one could have been added to either. If your major casting part numbers are the same, both are A/B engines. No problems bolting it in. If the replacement engine is from a Super A (isn't based on what you said) it will still go in but you may run into a minor fastener related problem.



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