Poor K181 couldn't take it-

[JLM78]

Originally Posted by timbo2

Total carnage-

looks like the governor bit it too, wonder if that happened first. There are small chunks broken off the bottom of the cylinder bore so I assume this is a goner.

This is what my Govner look like

[timbo2]

Originally Posted by ol'George

I'd say the rod sized on the crank and that started the problem.
Lets see some pictures of the block spigot, many times a chunk out of them causes no problem.
Clean up the crank,prolly .010 under, do what is necessary to the bore, check/do the valves and you are back in business, and you will have a "new engine" rather than some turpentine overhaul used one from evil pray or ??
----just my $.02.:Blah'b;Blah:

George - what is the 'block spigot'? should get more pics later.

thanks

[Sam Mac]

It may be rebuildable, it all depends on the block and crank.

[ol'George]

sorry,
the part that is chipped out, the part that extends
into the crankcase.
Many times they take a hit ( chipped out) but the block can be reused.
Many an engine of various kinds is running just fine with a chipped spigot or extension of the cylinder bore if you prefer.
it depends on the severity of the damage.

[timbo2]

ah I see what you mean. I was wondering that since the piston doesn't go down that far.

However I think I saw a crack extending up another inch or so. May get a pic soon. Too full from dinner!
thanks

[olds45512]

Originally Posted by timbo2

ah I see what you mean. I was wondering that since the piston doesn't go down that far.

However I think I saw a crack extending up another inch or so. May get a pic soon. Too full from dinner!
thanks

when pullers build stroker engines that part gets ground off anyway so i doubt it will hurt.

[timbo2]

OK- I was wrong there is no crack extending past the chipped parts. cross shaft tab broken off too. It must have over RPM'ed.

[J-Mech]

Originally Posted by timbo2

OK- I was wrong there is no crack extending past the chipped parts. cross shaft tab broken off too. It must have over RPM'ed.

You don't know if it over-revved? Weren't you there?

The block may be salvageable. Get it magna-fluxed (crack checked).

[timbo2]

I finally got the camshaft out. Reread the manual about 5 times because I swore I was missing something. Just needed a bigger hammer.

Where are the timing marks on the crankshaft? I see a stamped 'D' and 'c'. is it the 'c'?

I also see the mark on the edge of the camshaft gear.

thanks all-

[IACubCadet]

On your connecting rod cap- Was the oil hole towards the cam or away from the cam before it blew?? I've seen this a few times and it ends up looking like what you have. If it was away from the cam, it won't get enough oil to stay lubricated, especially at higher RPMs.