Mf30 engine rebuild?Perkins 4cyl diesel

   / Mf30 engine rebuild?Perkins 4cyl diesel
  • Thread Starter
#21  
Thanks. I will see if I can get Google to translate. My German is nicht gut lol.
 
   / Mf30 engine rebuild?Perkins 4cyl diesel
  • Thread Starter
#22  
Well guys. I think I'm about to the point where I have to do something with the ad4-203 Perkins I've been talking about.
I've ran it a few hours monitoring the oil.
It still has blow by but now I'm getting a pretty significant amount of oil leaking. It's hard to tell exactly where it is coming from, but it is coming from above the oil pan gasket.
I'm wondering if it is just the head gasket being completely blown?
Where else could it be coming from.
I am still thinking of doing an "in frame". Engine still runs strong fires up great when warm. Little harder when cold. Think an in frame would get me going again?
Thanks!
 
   / Mf30 engine rebuild?Perkins 4cyl diesel #23  
Clean and find the source, witch side?
 
   / Mf30 engine rebuild?Perkins 4cyl diesel
  • Thread Starter
#24  
I still haven't been able to find the leak, but I haven't had a chance to really look. Hopefully this weekend I will be able to.

I ran it again last night after work. Its weird. The "smoke" (blow by) was worse than it was yesterday, but oil wasn't pouring out of the engine like it was yesterday. I moved the tractor to a different spot and was playing with the backhoe to see how it was going to do since I replaced the bearing in the rotary cylinder (it did great). I am wondering if the way the tractor is sitting can determine whether the oil escapes through the exhaust or the engine?

When oil was pouring out of the engine, the tractor was parked with the front end down hill. Oil was pouring out of the right side, toward the front of the engine (right side if you are sitting on the tractor). When I moved it, the tractor was sitting more level maybe with the front end pointing up a little. Oil really didn't come out of the engine, but the blow by was bad.

Any thoughts?

Thanks again!
Nick
 
   / Mf30 engine rebuild?Perkins 4cyl diesel
  • Thread Starter
#25  
I still haven't been able to find the leak, but I haven't had a chance to really look. Hopefully this weekend I will be able to.

I ran it again last night after work. Its weird. The "smoke" (blow by) was worse than it was yesterday, but oil wasn't pouring out of the engine like it was yesterday. I moved the tractor to a different spot and was playing with the backhoe to see how it was going to do since I replaced the bearing in the rotary cylinder (it did great). I am wondering if the way the tractor is sitting can determine whether the oil escapes through the exhaust or the engine?

When oil was pouring out of the engine, the tractor was parked with the front end down hill. Oil was pouring out of the right side, toward the front of the engine (right side if you are sitting on the tractor). When I moved it, the tractor was sitting more level maybe with the front end pointing up a little. Oil really didn't come out of the engine, but the blow by was bad.

Any thoughts?

Thanks again!
Nick
 
   / Mf30 engine rebuild?Perkins 4cyl diesel #26  
Hi. Was just wondering how you've fared in fixing this one?
BTW, I have a similar one, a MF40 industrial. Mine has a loader, but no backhoe although a lot here did come equipped with both. They have the Perkins 3cyl 3-152 diesel, but a 4.203 would be a godsend! I rebuilt the engine when I first bought it, and it's been fine since.
Yours sounds like it just has worn rings - pressurising the crankcase and pushing oil out wherever it can escape. If the liners aren't too badly worn a hone, rings and con-rod bearings would be the minimum. As stated - how's oil pressure warm at idle? If it's not extremely low main bearings should be Ok. As you said it starts well and pulls well; if there's not a huge presence of black smoke under load injectors should be Ok and don't even require removal, same for pump, camshaft and crankshaft.
The job isn't difficult. Again as stated, attention to cleanliness, a good repair manual and all filters renewed on reassembly - having worn rings particular attention to oil-bath air filter - and bedding rings with some heavy work ASAP after reassembly. That machine is well worth maintaining.
Good luck!
PS Can we see some pics?
 

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