BOB ELLISON 2,976 #1 Posted August 5, 2018 I started working in my 1966 L157 Lawnranger trying to see what I can salvage on it. It has a S7d Wisconsin engine that would not turn either way but maybe 3 inch's and stick solid. I turn it the other way and same thing so I thought maybe a broken rod. I pulled it apart and it has a stuck piston and stuck intake valve. I removed the valve and crank then worked the piston out. The top ring which is the compression ring was stuck solid. I tried to free it and it broke (a dumb thing on my part). I should have soaked it first but I didnt. I have 2 questions. (1) I'm going to take the piston to a repair shop close by and see it I can get a ring put on it. Can this work ? I'll hone the cylinder first a little to kill the glaze. I don't want to put much money into this engine. I know it needs a carb also but there not that expensive. (2) I need a repair manual to see how the cam and crank timing is set. It's a clean engine the bearings are good Cam and crank not warn. Nothing that bad. I think it would be a good engine if I can get it back together. 3 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,488 #2 Posted August 5, 2018 This should do it. Timing gears on the last page. I think I have a parts list I can add. Garry 1 Share this post Link to post Share on other sites
BOB ELLISON 2,976 #3 Posted August 5, 2018 Thank you @gwest_ca I have been searching the Internet for this for 2 days. I may be able to save this old engine after all. 1 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,488 #4 Posted August 6, 2018 Added the operator manual and an illustrated parts list to the service manual Garry 1 Share this post Link to post Share on other sites
ebinmaine 62,982 #5 Posted August 7, 2018 On 8/5/2018 at 6:49 PM, BOB ELLISON said: Thank you @gwest_ca I have been searching the Internet for this for 2 days. I may be able to save this old engine after all. I'd be interested to see how this thing goes back together Share this post Link to post Share on other sites
BOB ELLISON 2,976 #6 Posted August 9, 2018 On Tuesday, August 07, 2018 at 4:28 PM, ebinmaine said: I'd be interested to see how this thing goes back together Sorry Eric I had to stop working on it. The carb is in bad shape and a replacement is between $100-$300 . I'm not going to put that much in it I'll wait and see if something comes up latter. Share this post Link to post Share on other sites
ebinmaine 62,982 #7 Posted August 9, 2018 3 minutes ago, BOB ELLISON said: Sorry Eric I had to stop working on it. The carb is in bad shape and a replacement is between $100-$300 . I'm not going to put that much in it I'll wait and see if something comes up latter. No worries Bob. Thanks for letting me know! Share this post Link to post Share on other sites
Dan Hankins 80 #8 Posted August 11, 2018 You ever come down to southeastern indiana? If so I have a fairly complete s7d sitting in the shed I would sell cheap. 2 Share this post Link to post Share on other sites
