J.I. Case 680ck resleeving block question

fairffieldmw

New User
The older I get the more it turns out my dad is right ........

Picked up a 680ck ( A267BD motor ) a while back , tired old girl but lots of potential . She ran well & never beat on her , oil & coolant mixed one day . Head gasket was not the issue , liner bore seal surfaces failed due to cavitation , electrolysis ya da ya da . All 4 cylinders have had the stuffing beat out of em !

Previous mechanic on this tractor fleeced these ugly bores with a generous coating of silicon ( rtv ) is what I discovered when I pulled her apart . I'll be quite honest gentlemen , I've never pulled an engine liner & what a fight ! Everyone one fought like hell on the way out .....

It gets better ! the folks at my local tractor salvage yard have a " tractor part hotline " and FLOCK ALL in the complete engine / engine block dept. for the J.I.Case A267BD motor .

I'd like to think that I'm more stubborn than an ugly stripper with a new outfit . Heads are off , pistons , rods , counter balance unit are out & I do have a plan so please comment ....


Step 1 : Pull motor & take all ( plastic-gauge ) journal measurements , strip block & have machine shop bore and sleeve block .

Step 2 : Slam a new " in frame " overhaul kit in motor on reassembly

Step 3: "Make The Dirt Fly"


I have some machine shop experience but the local shop asked me if I was providing the "cast sleeves" ? I asked the machinist " do the sleeves have to be made of cast " ?
His reply was " I'm only the machinist , most farmers always provide the sleeves ( one way or another )& they are ALWAYS cast .

Reaction to heat & or water is all that comes to mind when it comes to mixing metals that need to retain shape & water tightness while temperatures vary .
Any comments on this situation gentlemen ? The boy & I should have motor out buy Wednesday night

Always Best Regards
SJ
 
Are talking about the bottom bores being pitted? You may need to over bore them and put sleeves in them. Or you can have new liners made to fit the over bores. All not cheap.
 
Several years ago someone on here recommended copper colored silicone for lube on the orings of pitted blocks. I did a 1070 that way, and it has been fine. I have also seen jb weld used to fill the pits to good effect.

I would hesitate to put any serious money in a backhoe, they just aren't worth much, and you don't know when the next major repair bill will come.

I have no idea what you are trying to say here: "It gets better ! the folks at my local tractor salvage yard have a " tractor part hotline " and FLOCK ALL in the complete engine / engine block dept. for the J.I.Case A267BD motor . "
 
At one time case had the sleeves
available to repair the block.They also
had the boring set up to bore the block
and install the repair sleeves.I don't
know if either are available anymore but
wouldn't hurt to check with a case
dealer.
 
I've had a couple I did that had some pitting in the lower bore. Is it's mostly there but has some pits in it I've had excellent luck by putting some jb weld on it and then using a hone to smooth it out.
 

I have have rebuilt a few engines and have used three different machine shops. They have all sourced the parts for me. They have the sources and the purchasing ability and purchasing power, and with them doing the sourcing it gives me a measure of confidence that everything will come together correctly. My most recent project was a 50 year old Japanese car that had very low sales volume when new. The pistons were not available through normal channels at the time. The machine shop not only found them for me but they found an unavailable much sought after variant at a price below standard. I believe strongly that this is a situation where it is important to do business locally.
 
You will likely have to take the block to a machine shop and have the lower sleeve bores opened up and a new inserts pressed in. Also while you are at it, the top bores should be dressed and the sleeve protrusion on the flanges set correctly with shims if necessary, so the sleeve flanges don't crack and the head gasket fire rings seal properly.------------------------Loren
 

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