Cub smoke and knock

[Willy]

i would not run it, if you run it you run the risk of ruining the crank or throwing a rod through the block

Like THIS??!!
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A dab of JB Weld and a buffing wheel on it once the JB sets and it'll be like new. Just kidding

[Willy]

Two kinds of knock...rod knock and wrist pin knock. Rod knock ends up like that horrible picture above. Wrist pin knock can go on indefinitely. The 65 has excessive wrist pin clearance and has knocked for the last 5 years. My 86 s10 with iron duke has knocked for 200,000 miles...but its a wrist pin knock...probably all 4...

An S-10 I had near that year had a Pontiac 4 cylinder.
A flat metal plate of sorts was the cam keeper at one end with some clearance that hinted of a diesel engine sound at times. Many miles on that puppy before I sold it ,running great.

Jeep used that same engine for a couple of years in the early 80s. I had a CJ5 with it and it was near indestructable, even surviving a bad underhood fire that burned up or melted almost everything except the engine itself. You don't see those Jeeps much these days. The engine used a Chevy bellhousing which made them an easy swap to a Chevy V8.

[Indy4570]

Two kinds of knock...rod knock and wrist pin knock. Rod knock ends up like that horrible picture above. Wrist pin knock can go on indefinitely. The 65 has excessive wrist pin clearance and has knocked for the last 5 years. My 86 s10 with iron duke has knocked for 200,000 miles...but its a wrist pin knock...probably all 4...

An S-10 I had near that year had a Pontiac 4 cylinder.
A flat metal plate of sorts was the cam keeper at one end with some clearance that hinted of a diesel engine sound at times. Many miles on that puppy before I sold it ,running great.

Jeep used that same engine for a couple of years in the early 80s. I had a CJ5 with it and it was near indestructable, even surviving a bad underhood fire that burned up or melted almost everything except the engine itself. You don't see those Jeeps much these days. The engine used a Chevy bellhousing which made them an easy swap to a Chevy V8.

I have a chevette with the isuzu diesel in it. its a wish to make a doodlebug or tractor of some sort with it. I always thought about an S10 transplant. they did run them in the Luv 4x4s

[Terry C]

An S-10 I had near that year had a Pontiac 4 cylinder.
A flat metal plate of sorts was the cam keeper at one end with some clearance that hinted of a diesel engine sound at times. Many miles on that puppy before I sold it ,running great.

Jeep used that same engine for a couple of years in the early 80s. I had a CJ5 with it and it was near indestructable, even surviving a bad underhood fire that burned up or melted almost everything except the engine itself. You don't see those Jeeps much these days. The engine used a Chevy bellhousing which made them an easy swap to a Chevy V8.

I have a chevette with the isuzu diesel in it. its a wish to make a doodlebug or tractor of some sort with it. I always thought about an S10 transplant. they did run them in the Luv 4x4s

I had the diesel chevette also. Got like 50mpg. Engine never died. The rest of the car did.

[Willy]

I had a VW Rabbit diesel. 50-55 MPG when it ran right. But those were prone to warping the head. I ran mine a few years with a warped head, using the thickest head gasket I could find and lots of copper coat. It died when a 3/4 ton GMC 4x4 pickup ran into the back end at a stop light and sandwiched it (and me) into the Caprice in front of me.

[areger23]

what does the knocking sound like, someone knocking on a door, or someone tapping on the table. could be fuel knock if it only does it when hot. also wats your oil pressure at

[jsfarmall]

Oil pressure was about ¾ up the gauge on start up and half or a little less after good working. It sounded kinda like a knock on a table maybe. In the driver seat it was a deeper tone sounding knock but sitting next to the engine it got a little higher tone.

I took the oil pan off this afternoon. Found the knock. #4 rod journal is wore alot. Plastigauge showed about .007 clearance. Don't know what I'm gonna do with it yet. This was an engine swap cause original engine wasn't worth the work required. Now I'm back to needing bearings, machine, etc. Rings are also needed at the least. Just kinda disgusted.

[ricky racer]

It's a 60 year old machine. For an investment of around $1500 you can bring the engine back to new specs. It's a lot of money but what else can you buy that will do what a Cub can do or $1500? Maintained, it will last another 60 years. If it's an otherwise good tractor, it's probably worth the investment. If it's been ridden hard and put away wet, I'd put my money into a better example.

[ntrenn]

You now know what a rod knock sounds like....

Btw...the s10 has 304,000 miles on it ...still runs fine...

[Indy4570]

you could be facing this repair, want to trade? (I am a lil disgusted too ) Don't forget the engine break too

I got the nose, Hood/tank, radiator, bolster off it today. I got the old weld removed and it ground out for new weld today but cant find any nickle or cast iron rod on the place so...JB weld should fix that right up don't you think?