Home › Forum › Ask A Member › just heads up…clutch and shaft binding CD
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crosbyman.
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March 1, 2023 at 2:23 pm #273319
Upon re-assembly my cd GC where I was installing the gaskets and all ….
without the impeller housing over the impeller base plate I could not turn the drive shaft due to severe binding
leading me to thing the clutch itself was binding….it was free turning with a screwdriver but….no go with the drive shaft inserted in the cluch ????
Well… I eventually installed the full impeller housing to see if it was just my “misaligned hand turned drive shaft” causing the clucth to bind solidly after a 3/4 turn clockwise.
it was…. with the impeller housing the shaft and clutch lined up perfectly and voilà . free wheeling shaft …and clutch
one more for the experience bag….:-)
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March 1, 2023 at 3:14 pm #273320Your new gasket might be too thin. There’s not much clearance between the clutch and the bearing housing at the best of time.
March 1, 2023 at 5:53 pm #273331installed 1/32 gasket based on the curvy gasket thickness … but in any event the drive shaft truns ok now that is aligned properly with the impeller housing in place.
will continue on the yellow brick road… to a happy pressurized GC hopefully
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March 1, 2023 at 7:58 pm #273337crosbyman are you sure the shockabsorber is the correct length? Those things are a major problem. I have had several that were broken they get to long and they drag something awful. Squeeze them together and weld them. Problem solved.
dale
March 1, 2023 at 11:51 pm #273342OK i’ll check it out should be 6 inch 11/16 from what I read in several a POST searches
but it does turn freely with the pump housing in place so it can’t be to bad.??
I have a bore scope so …colonoscopy tomorrow !
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March 2, 2023 at 7:42 am #273343There is a way to check the pinion shock without removing the bearing/driveshaft seal housing. Take a high intensity flashlight and look inside the housing with the driveshaft removed. You should be able to see the top of the pinion shock.
Using a small piece of stiff wire such as piano wire bent into a 90 degree angle with around 1/8″ of wire past the 90 degree turn, check for clearance between the top of the pinion shock and the bottom of the bearing/seal housing.
If the shock is ok there will be approximately 1/16″ or more of clearance between the top of the pinion shock and the bearing/seal housing. I do this now every time I change a water pump. This can be a time saver and eliminates the need for a new housing gasket.
Improvise-Adapt-Overcome
March 2, 2023 at 8:18 am #273345I will report back on my findings asap thanks for the tip
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March 2, 2023 at 12:58 pm #273349update…. shock clucth spins fine under the impeller base plate
peeked inside no breaks ….
Has suggested I tried the 90 degree stiff wire test and room to spare ……..sealed up the impeller with homemade gasket and sealer
As to the busted pivot pin and has suggested I filed down the threads on a 1/4 28 tpi stainless steel 2″ bolt and cut to lenght …works perfectly and the bolt’s fat headed philips will never strip again. see pict… not perfect ( I just used a drill press to hold things while I filed out the threads )
I know SS and aluminum don’t like each other but…a few wraps of teflon tape should slow the agression between 2 metals
I will reassemble the GC and pressure test the new seals and finish this winter project 🙂
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March 2, 2023 at 4:41 pm #273356ok this may be a Spring project… GC sealed up hold 10-15 lbs …great 🙂
except the gears can hardly turn by hand on the prop or by the drive shaft . ??? 🙁
clutch was free wheeling under the pump so what give ?? but I am getting better at sealing clamshells. 🙂
I can almost hear the gears grinding
this engine had no big issues before I went overboard to reseal the prop shaft 🙁 should have just changed the oil mid season 🙁
any hints of the stuck gears ??
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March 2, 2023 at 8:58 pm #273358You might have missed your bushing alignment pins. The gears/prop shaft should turn easy.
dale
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