MF35 Siezes After Warm up

[Axtell]

We have a Perkins 23C diesel that freezes up after warm up. The engine was rebuilt a year earlier and ran like a champ. It out performed an
MF250 and JD 1530 after the rebuild. I was told it could pull a trailer of 125 bales of hay up hill in high gear without hesitation. I was asked to
change the oil in it and after doing so the engine locked up after about 5mins. I noticed a little white smoke coming from around the front of the
engine around where the breather tube outlet is after it locked up. About like cigarette smoke. I was involved in the rebuild which was a major
undertaking for me and was sick to my stomach when it locked up. The tractor sat all through the spring and summer as I had other obligations
and until recently out of curiosity I tried to turn it over again. To my surprise it did but you could hear metal on metal. I have pulled it back in the
shop to break it down again but thought I would post this to maybe see if anyone had any advice what to look for. I am hoping it could be
something I could inspect/repair without removing the engine again.
 

[miner09]

It could be several things. Oil pump not working. Rod Insert spun. etc. How long did it run after rebuild? What oil did you run? Don't think oil change had anything to do with it unless you didn't add new oil. Had a neighbor to do that. Didn't put drain plug back poured oil in ran on ground. He didn't see it.
 

[Dieseltech]

First off it's not a Perkins 23C. If it's a 23C four cylinder that's built by Standard Motors. MF35 Perkins were three cylinder engines. Which one is yours?
 

[Axtell]

[Axtell]

It ran about a year, one season, after the rebuild.
 

[John Deere D]

I'm interested in your findings, In 1984? I had a Perkins 3 cylinder in the shop.The Crankshaft THRUST WASHERS failed..... metal was contacting metal:

 

[ptfarmer]

You got a bearing, or a piston that gets tight when it gets some heat in it. I'd drop the oil pan, and have a look around.
 

[Phil Tibbetts]

Bought a MF 65 this summer with a stuck motor. Got it freed up pretty easily, ran it around for a few weeks and decided to do some rototilling with it because it was running great. After about 1/2 hour the motor took to rattling something fierce. Got it parked and towed it to the garage for tear down. It had spun # 4 rod bearing. $1000 plus later with a rebuild kit and new crank it is running great again.
 

[Axtell]

Thanks everyone. I’ll start by dropping the oil pan and see what I can see. I’ll keep you posted.

Axtell
 

[Axtell]

Looks like oil pump failure.







 

[ptfarmer]

[Axtell]

Very strange. A few more pics....





 

[ptfarmer]

Break that ear off the rest of way, and look at the cross section of the crack (see if it looks like a fresh crack, or a old crack).
 

[John Deere D]

It has been several years since I preformed a Total R/R on a Perkins....is there a Counter Bore on the FRONT BRG.CAP to accept the protrusion of the oil Pump?

Is a counter bore required in Brg.Cap?

The last pump I installed was an Original from England and the pump mounting flange did not break off:

Bob....Owner operator MF FE 35 X 3 cylinder Perkins:




 

[Axtell]