Ugh! Blew the engine in my 682 today.

[john hall]

Thats the same thing that happened on a 682 we had brought in a couple weeks back. As it seems to be a pretty common problem, I would love to know what a good interval is to go ahead and rebuild the engine before they self destruct. The 682 I spoke of had around 1150 hours on the engine.

[thenrie]

Well, thanks for all the encouragement. I guess I'll pull the engine this afternoon and take a look, then decide what to do. I expect I'll rebuild it. I have this illness that makes me want to take things that don't work and make them work again...regardless of cost...it's a difficult malady. Wish I had a Kubota diesel laying around. I'd make a 782D out of it.

Restore49, I had thought about JBWeld. Thanks for letting me know it can actually work!

Sam Mac, how much are you wanting for that CH22? Send me a PM if you would, and maybe a couple pictures, so I know what we're talking about.

Once I get the motor out, I'll take a couple pics, just for interest.

I have a 1650 I am rebuilding. It's been sitting, waiting for me to get time to finish painting parts. I wonder if I could put my K341 into the 682 as a temporary fix while I'm rebuilding the engine. Anybody tried that?

[thenrie]

Did you hear about the optimist that fell from the seventh floor?

As he passed each window on the way down he yelled, "SO FAR EVERYTHING IS OK!"

Well, it's a hole in the case just ahead of the Right cylinder. Interestingly, it was the right rod that broke. I don't have it all apart yet, but I don't see any scoring in the cylinder. In fact, the cylinder walls and valves actually look pretty good. I have my fingers crossed as to what I'll find inside. Maybe I'll end up just having to replace a rod and get the crank turned.

"SO FAR EVERYTHING IS OK!"

[MWShaw]

If your lucky, the crank will survive with just a polishing.

[AMCJavelin74]

Originally Posted by thenrie

Started looking for a rebuilt or used engine on the Internet. Man alive! I had no idea a replacement engine was going to cost so much! Now I'm trying to decide whether to just part the thing out and go buy another one.

Guess I need to get my 1650 finished pretty quick!

1. post pictures. While a dead engine is bad, pictures are definitely interesting.

2. Why part it out? It works well, and sure a rebuilt engine is expensive, but you could rebuild it yourself. In the mean time, use a different mower or pick up a walmart tractor for $200 on craigslist to fill the gap and sell it when the Cub is back to work.

[thenrie]

I disassembled the engine and cleaned the parts today. The camshaft survived, as did the lifters and valves. the bores are pretty well scored (from use, not from the blow-up), so they will need at least .010 over. Number 2 rod journal on the crank will have to be turned down, and #1 rod cap got pretty scarred up. The rest of the crank looks beautiful. I hope it hasn't already been turned.

Looks like I'll need the crank turned and .010 over pistons, two rods, and .010 under rod bearings.

Anybody know if .010 over pistons are available for the KT17 Series 1?

Oh! Almost forgot the hole in the case! I'm going to see about getting it welded up. If it were a smaller hole I'd consider JBWeld, but it's about the size of a Half-dollar. Not sure it would hold. I can tell this is a common problem, because I find left halves all over the place, but no right halves of the engine case.

Now to see if I can find a good small-engine machine shop somewhere around Stafford, Va.

[clint]

Check around look for a used garden tractor with a Magnum 18, 20 etc, or a KT 17 series II, or maybe even a non running engine for a block. I have noticed you can buy an entire lawn mower/ garden tractor for less than a used engine..

[CADplans]

A tractor is only worth as much as the engine any more.

Pennsylvania is so close, check Craigs List in PA. A used tractor with a decent engine is a better option than rebuilding a Series I.

I think you will be money and time ahead.

I find driving is much easier and less stressful than trying to keep the shop clean enough to rebuild an engine.

The two best places in Roanoke that did engines now only do the machine work.

No assembly.

Let us know if you find a good engine shop.

[CADplans]

I would go pick this up, he would probably take $250

http://altoona.craigslist.org/grd/2943125852.html

Then you have a

magnum 18HP engine!!

[daltonsweigart]

i have a 682 forsale runs flawlessly look under the forsale add for it