Buying and fixing a crawler loader : Caterpillar 951C . Fixing ENGINE 3304 PART 5
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- čas přidán 18. 07. 2021
- Hi guys,
in this video I show a problem found in a 3304 engine.
It has major problems with engine oil consumption. Blue smoke etc.
Despite having a good compression, the problem is that in an hour of use it consumed about 10 liters of oil, perhaps more.
I decided to disassemble to check everything.
This is a job on a 951c crawler loader. To remove the underlying plate (the plate under the oil sump) it is necessary to unscrew only 4 side bolts that hold the engine, two on each side.
Then you have to disassemble the rubber biscuits. Not completely but only on one side (that of the converter) are 8 bolts.
At the front, unscrew 4 bolts from below (2 per side) that hold the engine to the frame.
You don't have to disconnect anything else. With a jack, lift the engine 2/3 centimeters from below to allow you to remove the bolts that are under the upright. This allows you to remove the plate I was telling you. Without this step the rear pistons 3 and 4 cannot be removed.
Enjoy
Ciao ragazzi,
in questo video mostro un problema riscontrato in un motore 3304.
Ha grossi problemi con il consumo di olio motore. Fumo blu ecc.
Pur avendo una buona compressione, il problema è che in un'ora di utilizzo ha consumato circa 10 litri di olio, forse di più.
Ho deciso di smontare per controllare tutto.
Questo è un lavoro su una pala cingolata 951c. Per rimuovere la piastra sottostante (la piastra sotto la coppa dell'olio) è necessario svitare solo 4 bulloni laterali che trattengono il motore, due per lato.
Quindi devi smontare i biscotti di gomma. Non completamente ma solo su un lato (quello del convertitore) ci sono 8 bulloni.
Nella parte anteriore, svitare 4 bulloni dal basso (2 per lato) che fissano il motore al telaio.
Non devi disconnettere nient'altro. Con un cric sollevare il motore di 2/3 centimetri dal basso per permettere di togliere i bulloni che stanno sotto il montante. Questo ti permette di rimuovere la piastra che ti dicevo. Senza questo passaggio i pistoni posteriori 3 e 4 non possono essere rimossi.
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Looking forward to what you come up with for a sleeve puller. I did this job to my 941 probably 10 years ago
Hello . Fortunately, the cylinders are in good condition, and above all they fall within the 120.73 mm specifications. So I opted for a lapping. For the rest I will put the next video with the reassembly. I anticipate that I have already reassembled everything and it is great.
By Simo
The last engine I built like yours was in a JCB TLB. Pistons and liners. Found out later that the air filter was wrong and not filtering. That's what killed the engine.
Hello Carl .
This engine also had the same problem. The air filter was detached. There was a lot of shit inside the cylinder head.
I'd say the guides are definitely shot. Probably sucking oil thru them
yes, very worn. But the oil consumption was due to the worn piston rings.
I’m currently working on a 951 how are you able to get the oil plate out with the cross member in the way
Hello . Yes, I know that bar cannot be removed from the plate.
To remove the plate you have to disconnect the cookies that go into the transmission.
Then you have to disconnect the bolts that hold the motor to the frame. They are 4 bolts.
After the engine is disconnected from the frame and the cookies are free, lift the engine by placing a jack under the flywheel (in the cap).
You have to lift it about 2 centimeters. This way you will have the opportunity to remove the bolts that are between the bar and the plate.
Let me know .
Simo