General Category => Engine & Transmission => Topic started by: G-T on March 29, 2021, 05:09:34 PM
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I am trying to remove the flywheel on a 1948 and even if I've read all the instructions I could on the subject, I cannot get it off, I've taken the puller provided on the frame, I've tried to hold it atop of the cranking gear shaft with extra long 1/4 x 20 bolts, but all I've done so far was to strip those pullers bolts threads. Is there someone who ever took pictures of that procedure? I will drill and tap to 5/16-24, but I am really worried about breaking something else, does the
cranking gear should stay there or is it removable for that task?
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Did you remove the flywheel nut? Was the kickstart gear a bolt on or a screw on? Post a picture of what you have. I’ve removed many flywheels, this is an easy procedure.
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Btw, this is how to repair the flywheel when you get it off.
http://simplexservi-cycle.com/index.php?topic=1528.0
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I forgot to mention, the flywheel nut only gets loosened a couple of turns, then use the puller. If you completely remove the nut, the crankshaft is below the surface of the puller and there is nothing to press against.
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OK I think that I should use a pipe wrench and simply unscrew the starter gear off the crankshaft end's then?
The fact that there are no small 1/4-20 bolt installed around the gear,(to simply block-off dust), I deduct that the crank gear must be screwed on the crank shaft.
This is silly that nowhere I could find that important Wiko flywheel removal procedure information or at least a picture of that matter in any shop or parts manual.
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OK I think that I should use a pipe wrench and simply unscrew the starter gear off the crankshaft end's then?
The fact that there are no small 1/4-20 bolt installed around the gear,(to simply block-off dust), I deduct that the crank gear must be screwed on the crank shaft.
This is silly that nowhere I could find that important Wiko flywheel removal procedure information or at least a picture of that matter in any shop or parts manual.
Like Rick said^ . NOT completely off . Just a couple turns out from totally seated .
Then use the puller , so it has something to pull against .
Pete . :)
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1st picture shows the 2 types of pinion gears.
I'm assuming you have the one without the flange. This screws off using a 1 1/4" twelve point socket, as shown in the 2nd and 3rd pictures. Loosen the pinion gear one or two turns, then use the puller to pop the flywheel loose. Then remove the pinion gear the rest of the way. Don't loose the key.
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So mine is different?
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another view
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and a last view
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another view
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That is some hacked up pinion gear. I would put a pipe wrench on that and hope it comes off without damaging the crank. Then toss it in the scrap bin. Get the proper nut, 3/4-16, if I recall correctly, and a flanged pinion gear from Wayne. You will also need 3 studs and nuts and lock washers.
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Thanks Rick, how to order parts from Wayne Mahaffey, is he having a parts catalog? A website? snail mail? Is there a 1948 Parts Catalog that I could use to make my part list?
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Thanks Rick, how to order parts from Wayne Mahaffey, is he having a parts catalog? A website? snail mail? Is there a 1948 Parts Catalog that I could use to make my part list?
Look here :
http://simplexservi-cycle.com/index.php?topic=4.0
The first post gives Wayne's contact info . He has no website , just call . He's pretty easy to deal with . ;)
Pete . :)
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Did you get the flywheel off?
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Yes Rick, here is a picture of the crank-bolt that I've removed from the 48', it looks different from the ones you posted above?
So are there 3 different models?
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That is not a Simplex part. I’d guess someone couldn’t find an original and did the best they could.
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That is not a Simplex part. I’d guess someone couldn’t find an original and did the best they could.
Other than the poor quality pinion gear , it looks like it got the job done .
Be interesting to know where that pinion/nut came from or just how it came to be .
Pete . :)