Jake Knochel
New User
I have a Cat Twenty-Two that starts right up and runs perfect, the only problem is I'm getting gas in the crankcase oil. Is there a gasket that I should be looking for that would be internally leaking???
- Thread starter Jake Knochel
- Start date
I would highly recommend NOT running the engine until you find out and repair the problem, gas thinned oil = engine failure. I'm not sure where in the carburetor, and what type is on that engine, but its likely something in the carburetor, faulty float, needle seat, to be honest I am not familiar with the carburetor on this, but have experienced the same thing with a Zenith carburetor on a caterpillar starting engine.
ha - sorry to go off the OP's topic but reminds me of my brother's 69 Camaro - we rebuilt the engine - couldn't get it started, tried and tried and tried - so much that the oil got loaded with gas.
Finally figured we must have put the distributor in wrong - yanked it (without disconnecting the battery) - each of us on either side of the car, leaning over the engine getting the distributor out... sparked and BOOOOM -
big blue flame shot out of the distributor hole -
It was over in an instant, but it still burned our eyelashes/eyebrows/and hair on the front of our heads right off.
We were in high school at the time - and there was a dance scheduled about 2 hours later that evening.
We weren't too popular with the ladies that night.
took months for everything to fully grow back
Finally figured we must have put the distributor in wrong - yanked it (without disconnecting the battery) - each of us on either side of the car, leaning over the engine getting the distributor out... sparked and BOOOOM -
big blue flame shot out of the distributor hole -
It was over in an instant, but it still burned our eyelashes/eyebrows/and hair on the front of our heads right off.
We were in high school at the time - and there was a dance scheduled about 2 hours later that evening.
We weren't too popular with the ladies that night.
took months for everything to fully grow back
Thats a good one, one can't be too careful, and I've backfired through the carb on a few small block chevy engines, heck of a surprise the first time, but you learn to stay out of the path, that is for sure !
That starting engine, filled and overflowed the crankcase dipstick once I took it out, I always check for gas thinned oil now.
That starting engine, filled and overflowed the crankcase dipstick once I took it out, I always check for gas thinned oil now.
casecollectorsc
Well-known Member
- Location
- E central SD.
A friend of my son's was trying to get my nephew's S 10 Chevy started in my shop by pouring gas in the carb with a beer bottle. Backfired, lit the bottle on fire, he threw it in the corner of the shop and we spent a few minutes putting a shop fire out. Beer and no brains are not a good combination!
This happened to me a couple of times. Each time that it happened,it was the mechanical fuel pump on the side of the motor. The diaphragm is more than likely cracked and leaking. You will need to drain your oil and replace your oil filter. You will also need to replace the fuel pump. I do not know if you can buy the diaphragm for the fuel pump or will have to replace the whole fuel pump. I have seen it happen to others too. They also just replaced the fuel pump. When it happened to my Case 450 crawler, the gas tank on the back of it, was higher than the fuel pump. It allowed ten gallons of gas to leak into the oil. When I started it up, it blew oil out of the exhaust. I was soaked with oil and gas. It started right up with no problem, but after the oil blew out, I turned it off. I would suggest when you drain the oil, you put a little diesel fuel in the motor to wash out the gas. You might want to leave the plug out of the oil pan, and the oil filter off for a couple of days, to let the gas evaporate off. Hope this helps. Please post updates, so I know if this works for you. Bob
My first guess is fuel pump too.
You got a picture you can post? I'd like to torture my Dad with it, tell him it's for sale.
Grampa had a Cat Twenty-two sitting in a shed when we cleaned up the place for the estate auction. Engine siezed.
When we were setting up for the auction I was pulling the Cat out to the line with the 806 in low gear while Dad was steering the Cat. He decides to let the clutch out and see if the engine will break free. It didn't.
Unlike a wheel tractor that will slide when the wheels lock up, a crawler just digs in. The cat tried to go up on its nose and launch Dad like a catapult! Of course once wasn't enough, he had to try it again!
We never did get it broke loose. Most of that stuff went for scrap. It was 1989, and tractor collecting wasn't big like it is now.
You got a picture you can post? I'd like to torture my Dad with it, tell him it's for sale.
Grampa had a Cat Twenty-two sitting in a shed when we cleaned up the place for the estate auction. Engine siezed.
When we were setting up for the auction I was pulling the Cat out to the line with the 806 in low gear while Dad was steering the Cat. He decides to let the clutch out and see if the engine will break free. It didn't.
Unlike a wheel tractor that will slide when the wheels lock up, a crawler just digs in. The cat tried to go up on its nose and launch Dad like a catapult! Of course once wasn't enough, he had to try it again!
We never did get it broke loose. Most of that stuff went for scrap. It was 1989, and tractor collecting wasn't big like it is now.
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