Searcher60 208 #1 Posted October 12, 2020 Hello, and hope all is well. Just got around to tearing down by 69 Electro K301. Used quite a bit of oil. The springs are both missing for the ACR. I would like to fix this. Also, if there are no markings or numbers on the piston and connecting rod, does that mean for sure that they are aftermarket? Both are in spec., and so is the crank. Cylinder only has .001 wear, 3.374 with bore gauge. It’s the original 1969 WH engine. I do not think the rings are original. Crank is round, and only .001 wear at 1.499. I do not know if I should buy a new Kohler piston and rod. Tempted to just put a set of Kohler rings in it, if they will fit the piston that is in it. Didn’t have the correct Kohler rings. It’s the early serial # engine. Did not come with balance gears when new. But, it was fairly smooth at 3600 rpm. What to do? Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,498 #2 Posted October 12, 2020 See 2 different spec numbers for 1969 at Toro but think the 2nd one is for 1970. K301S-47147C K301S-47371C Garry Share this post Link to post Share on other sites
The Tuul Crib 7,332 #3 Posted October 12, 2020 Finding a new ACR spring will be almost impossible to find. You might have want to do what l did. Go on fleabay and find cam shaft with one on it. I looked every where and could not find a spring. It needs to go back in or you will have a hard time starting. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,498 #4 Posted October 12, 2020 Looks like the part number was 47 089 01 Garry Share this post Link to post Share on other sites
Searcher60 208 #5 Posted October 12, 2020 4 hours ago, gwest_ca said: See 2 different spec numbers for 1969 at Toro but think the 2nd one is for 1970. K301S-47147C K301S-47371C Mine is K301S-47147C. Not sure, but i’d bet the other one came with balance gears. 4 hours ago, gwest_ca said: Garry Share this post Link to post Share on other sites
Searcher60 208 #6 Posted October 13, 2020 14 hours ago, The Tuul Crib said: Finding a new ACR spring will be almost impossible to find. You might have want to do what l did. Go on fleabay and find cam shaft with one on it. I looked every where and could not find a spring. It needs to go back in or you will have a hard time starting. I think I found 2 NOS. But, I doubt I am going to be willing to finance the rip-off. It is what it is. I may buy one and then make enough springs to corner the market. I already have the correct wire. Share this post Link to post Share on other sites
The Tuul Crib 7,332 #7 Posted October 13, 2020 59 minutes ago, Searcher60 said: I think I found 2 NOS. But, I doubt I am going to be willing to finance the rip-off. It is what it is. I may buy one and then make enough springs to corner the market. I already have the correct wire. If you did find one you need to buy a lottery ticket! I had no luck! lf you do make a few let me know l have a few motors that needs one! Share this post Link to post Share on other sites
Searcher60 208 #8 Posted October 24, 2020 On 10/12/2020 at 9:58 PM, The Tuul Crib said: If you did find one you need to buy a lottery ticket! I had no luck! lf you do make a few let me know l have a few motors that needs one! I found a place that said they had 1,000 used springs. I got them to send me just two. Can’t tell them from new. Share this post Link to post Share on other sites
R. L. Addison 299 #9 Posted October 24, 2020 I made a compression release spring for my K301 & it worked perfectly. Didn't have to pull the cam out. That is what I call being smiled down by GOD! Share this post Link to post Share on other sites
