Agage1 83 #1 Posted August 11, 2012 just installed the new kohler connecting rod on my newly machined k241. after installing the rod with the oil hole pointed the correct way and the nuts torqued to spec. i noticed the motor was extremely difficult to turn over. after turning it over a few times i noticed metal shavings where the rod attatches to the crank. i pulled the rod to check it out and compare it to the old one. i swapped the new rod out for the old one to the same result. no metal shavings this time but still hard to turn over. if i loosen the nuts on the rod to about hand tight the motor turns over fine. but when i torque them down to manual specs. the motor locks up. so whats going on here? should i just snug the nuts on and not torque them to spec. the machinist did no work on the crankshaft, so i dont understand why my old rod wont work. and does anybody have any suggestions for cleaning the inside of the block. i got get the metal shavings out safely without damaging the rest of the internals Share this post Link to post Share on other sites
Callen 64 #2 Posted August 11, 2012 Do you have the bearing plate installed? Share this post Link to post Share on other sites
Agage1 83 #3 Posted August 11, 2012 yes everything is installed but the cylinder head and oil pan. the machinist did the plate, crank, valves, cam, and govenor gears heres some pics of the new rod that produced the metal shavings Share this post Link to post Share on other sites
rmaynard 16,343 #4 Posted August 11, 2012 Did you purchase the correct rod? What is the part number? Is it Kohler or other brand? You may have had the hole towards the cam, but did you have the alignment notches correct so that the rod and cap were mated properly? Share this post Link to post Share on other sites
Agage1 83 #5 Posted August 11, 2012 the machinist supplied the rod, it is a kohler, and it is the same part number as the one that was originally on the motor. can you elaborate on the alignment notches, there are arrows on the rod and cap Share this post Link to post Share on other sites
Agage1 83 #6 Posted August 11, 2012 thanks bob i just flipped the cap to see if the alignment notches were wrong. the motor turns fine now. i'll have to take the piston out and rotate it so the notches line up and the oil hole is positioned correctly. do you have any tips as to how i can clean the metal shavings out of the block before i reinstall the pan and piston. i dont what to use and not damage the rest of the internals that are already installed. its not a lot of shavings but i want to do it right seeing that i paid good money to have the block machined Share this post Link to post Share on other sites
rmaynard 16,343 #7 Posted August 11, 2012 You don't have to remove the piston, just rotate it. K241 type "A" pistons are non-specific as to their orientation. Cleaning the aluminum from the engine is the question. I have not had to do that so I will wait for another "guru" to chime in on the subject. Share this post Link to post Share on other sites
1054josh 25 #8 Posted August 11, 2012 If it was mine id purchase another gasket set and tear it all the way down and wash it totally out. But then again I have the worst luck in this situation and have learned from prior experiences to spend the little extra now and save alot later. But this is just my two cents Share this post Link to post Share on other sites
can whlvr 994 #9 Posted August 12, 2012 have to agree,with all the money spent i would not want shavings in my new engine,tear her down and dont forget the bearings too Share this post Link to post Share on other sites
