Break in time for new pistons and rings ?
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85Hokie
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BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
I would run it somewhat easy for about the first 50 hours.... oil/filter change after and move forward.
Vary the rpms a bit , but dont baby it .......... diesels need to be run at their torque heavy rpm, so - I would run it 50-75% rpms for a bit depending on what you are doing.
Vary the rpms a bit , but dont baby it .......... diesels need to be run at their torque heavy rpm, so - I would run it 50-75% rpms for a bit depending on what you are doing.
if the machine work was done right, cylinders untapered and round with the correct grit hone, they'll be seated in 10 minutes or less.
That is repeated by folks that have no clue and shouldn't be giving any advice.
Thanks for the information.
All I do with this tractor is pull a finish mower cutting about 10 acres. So grass is tender and green . The throttle setting of 50%-75% should do fine .
Yeah this guy is full of schizz.
Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power
New Engine Break In Procedure For Cars, Motorcycles, Motocross, Snowmobiles and Boats
mototuneusa.com
Good advice from the racing world, loose is fast. Longevity isn't in their vocabulary and they have big budgets for rebuilding engines.
GreensvilleJay
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BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
re:
All I do with this tractor is pull a finish mower cutting about 10 acres. So grass is tender and green . The throttle setting of 50%-75% should do fine .
I was told to VARY the engine speed, not 'set and forget' for the first few hours/miles of 'break in' period. So run a little fast, then slow,maybe fast then mid range, ..mix it up, every so often. I did that 700+ hrs ago with my BX23S, zero problems.
All I do with this tractor is pull a finish mower cutting about 10 acres. So grass is tender and green . The throttle setting of 50%-75% should do fine .
I was told to VARY the engine speed, not 'set and forget' for the first few hours/miles of 'break in' period. So run a little fast, then slow,maybe fast then mid range, ..mix it up, every so often. I did that 700+ hrs ago with my BX23S, zero problems.
I had new pistons/liners installed in my 120 HP tractor last yr. I recommend utilizing break-in oil until 1st oil change. I just put my tractor to work doing the task it's performed for yrs IE pulling rd baler making 4X5.5 rd bales. I suppose the rings seated fine because it uses no oil between oil changes
Piston rings need some speed to quickly seat properly, other engine parts may be damaged if the fit isn't ideal with excessive speed. When saying that you used break-in oil, I guess that it was an oil with high ZDDP content, which will add some protection. It is all a balancing act and the fans of running a new engine hard are not dealing with reality. I think that you will find that new tractors have been started and stopped repeatedly as the dealer moves them in and out of the shop for assembly and fitting of attachments, that golden hour of treating a new engine properly is totally lost in the shuffle.
You need load to break in rings, not static, dynamic load. Ie put it to work. Load the rings. The pussy footing around is for cam shaft break in. If it's the original cam there's really no need to light load it or vary the engine speed the rings don't care. If the machine shop has done their part right and the guy assembling it did his job it will work.
I've dynoed plenty of engines and will tell you from first hand experience the rings seat up a lot faster then you think. Normally minutes. Letting it get up to temp is arguably more important then the speed of the engine, then go to work.
Deere was/is a big fan of their break in oil, I've never seen a major difference in the engines that were ran with it or not.
I've dynoed plenty of engines and will tell you from first hand experience the rings seat up a lot faster then you think. Normally minutes. Letting it get up to temp is arguably more important then the speed of the engine, then go to work.
Deere was/is a big fan of their break in oil, I've never seen a major difference in the engines that were ran with it or not.
When I had the C15 CAT engines in my trucks overhauled, I asked how to break them in. The CAT shop manager said to drive them just like normal, don't baby them and MOST important, watch for any leaks.