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Author Topic: Engine block mating gear spins freely. Is this a common issue? If so, what part  (Read 750 times)

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Offline Unicorn

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Engine block mating gear spins freely. Is this a common issue? If so, what part
« on: March 19, 2020, 05:57:51 PM »
Engine block mating gear spins freely. Is this a common issue? If so, what part is usually needed?

I’m happy to take the clutch cover off. But if I only have to do so once, I’d live to know if this is a common thing and if a part is needed.

Thank you!!
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Offline 754

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Re: Engine block mating gear spins freely. Is this a common issue? If so, what part
« Reply #1 on: March 19, 2020, 06:25:45 PM »
 First what engine ?
 Second, what is a mating gear ?
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Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline bryanj

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Re: Engine block mating gear spins freely. Is this a common issue? If so, what part
« Reply #2 on: March 20, 2020, 12:57:44 AM »
Im with 754 in r what!
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline samm_j2

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Re: Engine block mating gear spins freely. Is this a common issue? If so, what part
« Reply #3 on: March 21, 2020, 09:04:49 AM »
photos please, really curious about this!
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Offline MRieck

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Re: Engine block mating gear spins freely. Is this a common issue? If so, what part
« Reply #4 on: March 23, 2020, 05:41:32 AM »
I'm gonna guess the oil pump/kick starter gear on the 750.
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Offline BenelliSEI

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Re: Engine block mating gear spins freely. Is this a common issue? If so, what part
« Reply #5 on: March 23, 2020, 05:52:07 AM »
I’m hoping we get more detail on this question? Want to hear more!
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Offline PeWe

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Re: Engine block mating gear spins freely. Is this a common issue? If so, what part
« Reply #6 on: March 23, 2020, 09:22:39 AM »
Lots of curious forum addictives here that loves to help others in need ;)
I have learned that on a car forum and this forum: Others problem or "stupid" question today can become my problem or serious question within a short period of time. :D
« Last Edit: March 23, 2020, 10:23:24 AM by PeWe »
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline bryanj

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Re: Engine block mating gear spins freely. Is this a common issue? If so, what part
« Reply #7 on: March 23, 2020, 10:16:35 AM »
4 days and the op has not been back?
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline 754

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Re: Engine block mating gear spins freely. Is this a common issue? If so, what part
« Reply #8 on: March 23, 2020, 10:49:38 AM »
 So Unicorn we are trying to help, come back and explain a bit.
 We were all new to this once, and we all had questions. .
 And welcome aboard.
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Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way
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