allis chalmers hd 16 dp buda 844 engine

Had a quick look up the sump with inspection camera its hard to get a real good look but it seems that all the connecting rods have not been hot or discoloured but as said its pretty hard to get a good look . I drained the oil from filters unfortunately some water came out of the bottoms of them but oil is just black no silver . I will remove the filters when i get a chance and have a better look . The front drive shaft i grabbed with my had has i tinny bit of movement back and ford the uni near the front has quite a bit of movement in it pretty much bugged im still trying to work out the best way to get the shaft out .

cheers       

First thing i did was chain the blade up when engine seized as over time it drops down slowly and i thought if i keep it up would have a chance of towing dozer out of the paddock blade and rippers were working normal 

cheers 

Just to let you know ive been a bit busy on farm and have not got back to dozer but will in the future i do appreciate the help from people just work comes first . You mentioned you had a 11b do you have any pictures ?

cheers   

Thanks for the pictures i like your dozer and what a story to go with it. You were very lucky to come across it again .  I purchased my dozer at a clearing sale it came with the angle  blade but its original bull blade was sitting next to it and i did not buy it unfortunately i know the guy that did buy the bull blade and have asked him over the years if he would sell it but he will not its just siting there he does not have a dozer to put it on . Your pictures are inspiring me to get mine going again if possible .

cheers

Its been a few weeks had a little time today and pulled the drive shaft of front of the engine. Hydraulic pump turns over buy hand drive shaft had a pretty bad universal joint notchy its not easy that to get shaft out not looking ford to putting back in . So i tried to turn engine over again with stop pulled out a few times it turned quite well then back to clicking starter to get it past tight spot i recon i heard the noise while turning over the tappet sounding noise it sounds like its coming from lower block up the front only a slow noise once every turn or so of the engine. Im convinced its a bearing or  some thing inside the engine . If the engine has spun a bearing is it possible to linish a crank shaft while still in the block? has any one done this before ? I am thinking that to pull engine out and rebuild is probably not worth the effort or money pretty sad really 

cheers             

Lookee here Russell:

Yes, don't know the particulars of his engine but much of that can be sorted. I've modified main and rod bearings over the years to fit if they are the same dimensions internal, and external, so I don't rule anything out.

Had on old Hercules we line bored and poured babbit fillers into, line bored that, and then installed bearings from a Cummins engine. Time, money, and an aggressive attitude can work in one's favor at times to save things. I thought the guy was nuts till I seen the mahogany Chris Craft boat this was from. I was then quite proud to be a part of the project. 

Thanks again 

hd16dp -6087

16-05206

these are the numbers ive been told that the buda engine has the American made crankshaft wich are quite sort after as they fit to latter models with the Japanese cranks wich are prone to breaking . 

Ok my question is has any one had a spun conrod bearing and been able to just polish up the crank a bit and fit new bearings ? I guess the chances are slim i talked to a engine rebuilder and he has seen engines that are locked solid and crank is still ok luck of the draw i guess .  

cheers

"later ones would probably be ok but i would not turn up a 16000 or 21000 as they have smaller crank journals.  much harder to find bearings for these 3 vavle head engines than the later 16000H- 25000 etc."

Looks like i have to remove sump and have a look unfortunately if the crank needs grinding i think i will call it quits of to the scrap yard . I have a 260 scraper with a 892 detroit fitted to it not much use to the dozer very sad to let dozer go .

cheers  

Thanks makes sense hope its not to bad inside the crank shaft would it be nice if i could remove the bearing clean up the crank replace  bearings  some how i dont think so 

cheers

Remember that until you take the sump off and look you don't know that it is the crank area at fault

You are all right dont give up yet i will take the sump off and have a look its very dry here at the moment i will wait until we get some rain as its so dusty and dozer in the paddock 

cheers 

Well had some rain dust settled decided it was time to pull the sump of the engine . Once of all looked pretty good no discoloured caps no metal showing up so i decided to grab hold of rod ends and could move just a little side to side all felt good but no movement in number three so im thinking this is the problem it got dark so left it at that will have a go at pulling rod cap off today and see the result .

cheers