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flywheel teeth?

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sgetty Fahrvergnugen

994 posts · joined Sep 2003 ·

#755304
hey guys
just replacing the rear main seal on our 40hp, and noticed two or 3 bad spots were the teeth on back(clutch side) on the flywheel have been chewed, ill get some picks up tonight what can cause this, im guessing a new flywheel but want to prevent from happening again.
cheers
deon
🙂

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 ·

#755330
Running 12 volts through the 6 volt starter certailycan aggrivate things,
but the original 6-Volt ring gear is not hardened either...unlike the 12 volt.
You can buy new ring gears and have it shrunk onto your flywheel after machining the old one off.
REPCO used to sell them world-wide.

The other major contributor is the worn out bush in the gearbox.
I have run a 6Volt arrangement on my racecar trouble free if everything is in good shape,
but once things start to wear, it can get horrible pretty fast.
westi wrote:That's mad Alan.

sgetty Fahrvergnugen

994 posts · joined Sep 2003 ·

#755331
hhhmmm worn i out bush, i hope not but it could be the original box i dont know only had the car 3 or 4 years this is the first time ive had the motor out. ill count the teeth tonight see what that turn up.thanks for that dave

cheers
deon
🙂

sgetty Fahrvergnugen

994 posts · joined Sep 2003 ·

#755406
sorry about the quality of the pic and i counted the teeth is 6volt any ideas?

deon

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tassupervee That really hurts doesnt it!

1,171 posts · joined Sep 2003 ·

#755439
Id put that down to wear and tear over a long period of time M8.
The teeth dont have much taper or "lead" and the pinion gearteeth mashes itself into the face of the ring gear teeth when the starter is engaged. The pinion with full solenoid pressure just rotates around a bit to allow meshing, slowly chewing them away If it had more than 2 bad areas then the flywheel has been off the motor at some time and rotated around a bit.

You can do a ghetto fix and rotate the flywheel around so a less worn section of the ring gear faces where the starter engages and drive on happily for another umpteen years, flop on another flywheel with a better ring gear or have the ring gear replaced on your current fly as mentioned by Dave.

L8r
E
Im not a complete idiot, quite a few parts are missing....

sgetty Fahrvergnugen

994 posts · joined Sep 2003 ·

#755449
ok cool
thanks for that might rotate for now, get the oil leeks fixed and re regoed.
cheers deon
🙂

jsheppard64 Officially Full-On Dubber

323 posts · joined Mar 2008 ·

#755499
You could get a bit of life out of it if you file the teeth
just get the chewed bits off between the teeth.
works on mine