Wheelhorse#1 1,445 #1 Posted January 16, 2023 (edited) I Was wondering how critical it is to have proper clearance when installing the gaskets on the bearing plate ? The manual mentions its more critical on gear reduction engines to have the proper clearance. What would be a symptom of improper clearance or would it cause premature wear ? Other symptoms? Edited January 16, 2023 by Wheelhorse#1 Share this post Link to post Share on other sites
squonk 38,902 #2 Posted January 16, 2023 The clearance does 2 things. 1. it sets the front bearing and seal in the proper location on the crank. 2. too tight a clearance will cause extra side load on the bearings and crank thrust surface. Too loose and the crank can move back and forth hammering the bearings and causing side stress on the rod and wrist pin as well as potentially cracking the bearing bosses. 4 Share this post Link to post Share on other sites
Wheelhorse#1 1,445 #3 Posted January 16, 2023 Thanks for the explanation! I have 301 that I believe to be the issue and I’ll have to pull and re measure.Has too much play back and forth. 2 Share this post Link to post Share on other sites
Pullstart 59,644 #4 Posted January 16, 2023 (edited) I must be the luckiest guy in the world. I had a K161 that ran good and a K181 that had good electronics and starter. I took the K181 side plate off and tossed it on the K161 for the gain of a stator and starter and never had an issue. Edited January 16, 2023 by Pullstart 2 Share this post Link to post Share on other sites
953 nut 51,628 #5 Posted January 16, 2023 I know that reading instructions is not a manly thing to do but some times it comes in handy. In the Kohler engine service manual Disassembly section they tell you to save the gaskets between the block and bearing plate, measure them and record the measurement so you replace them with the correct shim gaskets then check the clearance. 3 1 1 Share this post Link to post Share on other sites
Wheelhorse#1 1,445 #6 Posted January 16, 2023 39 minutes ago, 953 nut said: I know that reading instructions is not a manly thing to do but some times it comes in handy. In the Kohler engine service manual Disassembly section they tell you to save the gaskets between the block and bearing plate, measure them and record the measurement so you replace them with the correct shim gaskets then check the clearance. I must of missed that part or my brain didn't retain that information . I tend to learn things the hard way sometimes . Anyway of doing this without pulling the pan ? Share this post Link to post Share on other sites
WHX?? 46,729 #7 Posted January 16, 2023 I measure the gaskets/ spacers but then measure the end play. 2 1 Share this post Link to post Share on other sites
squonk 38,902 #8 Posted January 16, 2023 13 hours ago, Wheelhorse#1 said: Thanks for the explanation! I have 301 that I believe to be the issue and I’ll have to pull and re measure.Has too much play back and forth. Has this engine been apart before? If not your bearings may be shot. Spec is quite generous .003" - .020" Share this post Link to post Share on other sites
Wheelhorse#1 1,445 #9 Posted January 16, 2023 7 minutes ago, squonk said: Has this engine been apart before? If not your bearings may be shot. Spec is quite generous .003" - .020" Yes.Honed cylinder Replaced piston, rings and rod and valves. Everything was just in spec. I checked the bearings and didn't notice any play in them on both sides.However I didn't remove them to check them so Im not certain if I should've remove them and checked that way ? In hindsight I should of just relaced Share this post Link to post Share on other sites
Wheelhorse#1 1,445 #10 Posted January 16, 2023 (edited) 51 minutes ago, WHX?? said: I measure the gaskets/ spacers but then measure the end play. @WHX??Thats the ticket. I may just invest in one of these.Do you think the Harbor fraud model would be sufficient ? Edited January 16, 2023 by Wheelhorse#1 Share this post Link to post Share on other sites
Wheelhorse#1 1,445 #11 Posted January 16, 2023 (edited) 12 minutes ago, Wheelhorse#1 said: Spec is quite generous .003" - .020" Yes that's what Im thinking, my problem may be something else "Bearring"? .The sound is deffintly coming from one side near the bearing at the flywheel . The engine runs perfect its Just has a intermittent tap sound non existent at idle, not constant. Edited January 16, 2023 by Wheelhorse#1 Share this post Link to post Share on other sites
WHX?? 46,729 #12 Posted January 16, 2023 15 minutes ago, Wheelhorse#1 said: Harbor fraud model would be sufficient ? I would think so for what we are doing. 1 Share this post Link to post Share on other sites
squonk 38,902 #13 Posted January 16, 2023 I use one of these. Share this post Link to post Share on other sites
ri702bill 7,313 #14 Posted January 16, 2023 1 hour ago, squonk said: I use one of these. Originally intended to check disc brake rotor runout, right Mike?? Bill 2 Share this post Link to post Share on other sites
Wheelhorse#1 1,445 #15 Posted January 16, 2023 @squonk who makes that one ? Share this post Link to post Share on other sites
squonk 38,902 #16 Posted January 16, 2023 33 minutes ago, ri702bill said: Originally intended to check disc brake rotor runout, right Mike?? Bill Yes. Also ball joint wear. 11 minutes ago, Wheelhorse#1 said: @squonk who makes that one ? Several companies make that style. Horror Fright sells it. $33 bucks https://www.harborfreight.com/search?q=clamping dial indicator 2 Share this post Link to post Share on other sites
