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Antique Steel Wheel Tractors - Old Iron Lugs and Cleats

Hart Parr 12-24 Engine Advice/ Tips


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  #1  
Old 07-29-2012, 10:33:28 PM
poolguy poolguy is offline
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Default Hart Parr 12-24 Engine Advice/ Tips

I had the valves ground, new springs, new head gasket,I want to pull the pistons, and clean the rings? yea- nea..? I do not have any money left to do anything more to it right now, just looking for advice on what to do now to help clean it up. Will I break the rings? Should I do anything to the rod ends/crank?? Thanks in advance, Steve
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Old 07-29-2012, 10:45:21 PM
HBurk HBurk is offline
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Default Re: 12-24 engine advice/ tips

12-24 what?
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Old 07-29-2012, 10:48:57 PM
Oilpulled Oilpulled is offline
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Default Re: 12-24 engine advice/ tips

If compression is good, don't bother rings. Sometimes they can get stuck with unburned carbon. Handle them carefully and if removing, make 4 strips of thin metal with a 90 deg bend at one end to slip under a ring so you can slide it up. Don't spread open too far. Rock the crankshaft and observe play at rod. It should be slight only.
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Old 07-29-2012, 10:57:23 PM
Brasherman Brasherman is offline
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Default Re: 12-24 engine advice/ tips

Steve,
It really would help if you explained what tractor you are working on. I see you are close by, so I might be of some assistance to you if needed.

Corey
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Old 07-30-2012, 07:22:46 PM
poolguy poolguy is offline
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Default Re: 12-24 engine advice/ tips

Sorry, it is a 1928 Hart Parr 12-24, thanks, Steve
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Old 07-30-2012, 08:09:21 PM
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Craig A Craig A is offline
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Default Re: 12-24 engine advice/ tips

If the rings are still loose how much spring is left in them?
A new ring will be open enough that it will barely stay in the groove.
I think if the rings expand enough that it takes a little effort to push them even with the piston grooves I'd leave them alone.
Hart Parrs, having total loss oil systems, are really REALLY forgiving in that department.......

If the rings are stuck I'd paint them every day with brake fluid.
I've used a 50/50 mix of brake fluid and penetrating oil with great success.......
The problem with straight penetrating oils is they dry out while brake fluid doesn't.
A combination of the two aids penetration of the brake fluid and slows down the evaporation rate of the penetrating oil.
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Old 07-31-2012, 05:59:41 PM
Geoffrey Mark Geoffrey Mark is offline
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Default Re: 12-24 engine advice/ tips

be nice to see some pictures off your tractor , i have a 12/24 requireing a bit off work also !
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Old 07-31-2012, 09:51:37 PM
poolguy poolguy is offline
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Default Re: 12-24 engine advice/ tips

Thanks for the replies, I hope to put it back together this week with my valve job...so any other advice is welcomed...
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Old 07-31-2012, 09:58:52 PM
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Arrow Re: Hart Parr 12-24 Engine Advice/ Tips

Do you have the Hart Parr Lightweight Owner's Manual?

You can download it there >>> http://andersonofrosholt.com/mypics/...structions.pdf
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Old 07-31-2012, 11:46:37 PM
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Ken Majeski Ken Majeski is offline
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Default Re: Hart Parr 12-24 Engine Advice/ Tips

Check the cotter pins in the governor weights before you run it.
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