deere 4219 rod bearing size

robreynolds

New User
I"m doing an in-frame rebuild on a Deere 410 backhoe, 4219 diesel engine. I pulled the pan and a rod bearing cap to see which bearings to order with my kit, but I don"t know what the nominal value is supposed to be, so I can"t tell whether I need standard or oversize. I suppose I would get that information from the shop manual that I also need to order to tell me all the correct torque values when I put it back together. If anybody has this manual, could you take a peek at it and tell me the original bearing size, so I can order everything at once and save a few bucks on shipping?

One other question..... Why do all of the engine kits advertised as "in-frame" include main bearings? If I"m not mistaken, the crankshaft has to come out if I am to replace these, and that"s not an in-frame rebuild any more, right?
 
Quick and dirty or right and pretty the only way you are going to know for sure is to get out a micrometer and check the crank.
Too many things may or may not have happened to the engine before you took posession of it to even attempt a guess.
Additionally there may be wear that will dictate the need to pull the crankshaft for machining.
99% of the time this wear will be on the one journal you did not measure before ordering a kit because all the others looked good.
Regarding the main bearings; you said you had the pan off, if you take a closer look you will see that you can remove the bearing caps. The shells can be rolled into place without removing the crankshaft.
Judging from your questions It would seem likley you have never done this before.
I am not saying you should not attempt this but I would not try it without a mentor to show and help you through it, it is not rocket science but there is a level of finesse and knowledge required which without you will be setting yourself up for an expensive lesson.
 
Gee, I looked at my micrometer, but I can't find where it displays the factory spec for my rod journals. All it shows is the actual size of the ones in my backhoe.
 
Gee, I looked at my micrometer, but I can't find
where it displays the factory spec for my rod
journals. All it shows is the actual size of the
ones in my backhoe.
 
Bearings are almost always marked "STD" for "standard", or an undersize value is stamped on them.

Have you looked closely?

I any case, check the fit of the new bearings with Plastigage before final assembly.

<img src = "http://i628.photobucket.com/albums/uu9/hindsight52/427%20FE%20Big%20Block/Rods%20-%20Pistons%20-%20Rings/1b6b0c7c.jpg">
 
(quoted from post at 12:51:42 12/18/13) Thanks. Mine are marked T-20011. It didn't seem to relate to the size.

DEERE part #T20011 (replaced by AT21138) is shown as "standard" size in the parts catalog.

www.jdparts.com
 
The nice folks at 1-800-522-7448 will send either a hard copy or a CD of the service manual for a reasonable fee.
What happened to require an engine overhaul.
 
Thanks for the tip. What vendor does that phone number belong to?

The reason this backhoe needs an overhaul is because it had water in the cylinders for a few years, which ruined the compression. How the water got in was a mystery at first because it has a rain cap on the pipe. But then I noticed that the exhaust manifold fasteners are not tight. My new suspicion is that water pooled on top of the manifold and entered through the loosely attached joint between it and the head. Fortunately, the bottom end looks very good. Although the water leaked past the rings into the crank case, not enough water accumulated to threaten the crankshaft.
 
What measurement on the rod journals do you get? If they're worn the mains are probably worn too. Hal
 
My question is why would you waste your time and good money for parts on an in frame? You do all that work and then the rear main seal leaks. 30 years of engine building. Inframe is a cuss word to me.
 

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