K241 rebuild help needed

[Pswan]

Not sure if this will turn out but trying to post two pictures of the afore mentioned head carbon buildup. I've never seen anything like it. You gotta love internal combustion engines! You can see where the intake charge kept a slot clean into the cylinder but not sure how the exhaust was removed. Not sure if the pictures turn out but the ridge of the carbon is almost even with the head mating surface. Thanks for the input and responses to my thread.
Pete

[Pswan]

The second photo.
Pete

[J-Mech]

Originally Posted by Pswan

Sorry Merk, I keep misquoting standard bore size. 2.251. Thank you.
Pete

This is the statement that made some confused. I think you hit the wrong # key. Should be 3.251


As far as the carbon build-up, I'd say the motor was ran without an air filter, or some kind of a leak past the air filter. That would explain the excessive cylinder wear and the carbon.

[Pswan]

Good point j-mech on both accounts. I'm using an ipad and I'm sure I messed up the "finguring".
Pete.

[sawdustdad]

Originally Posted by Pswan

The pto side of the block has k301 embossed there. It appears to be one of the k241 engines that is based on a k301 block. My understanding is that kohler didn't have enough k241 blocks for the run and had to use k301 blocks with a k241 bore. If true, the advantage is a thicker cylinder wall..
Pete

That explains it. Thanks.

[Pswan]

Question. How do I know if my engine needs a short or long dipper rod? The big end of the rod that was in the engine is in pieces and not sure what it was. I think the oil pan is a shallow pan but not sure. I suspect this is what determines the length of the dipper. Is this true? Grabbing at straws here. Thanks
Pete

[sawdustdad]

It's my understanding that the short dipper is for the flat pan (I have that on my 108) while the long dipper is for the engines with a pan with a sump.

[J-Mech]

The correct part number for your rod should be KH-47-067-11. This is the part number for the standard rod, cross it over (if you aren't using Kohler parts) to whatever brand you are using.

[Pswan]

Thank you sawdustdad and j-mech. I don't want to get in trouble mentioning a company that sells parts but here goes. Pats small engine website has 47-067-13-s oem connecting rod for $28.90. Maybe that is the going rate but seems cheap for a kohler connecting rod. This states it is the long dipper so no good for me but maybe others. Again, not a sponsor so may have committed a sin and apologize if I did.
Pete

[Pswan]

I have seen mention an 0.020 under connecting rod for a k241 but can not find one for sale. Kohler, stens, rotary or ....? Does anyone know who makes an 0.020 under rod? Thank you
Pete