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Author Topic: Replacing Crank Seal On 700 Twin  (Read 355 times)

High On Octane

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Replacing Crank Seal On 700 Twin
« on: May 08, 2013, 06:10:26 AM »
I have a bad oil leak between the primary case and the engine block where the crank is.  Is it the chain case oil seals that I need to replace?  Also, can I install them with out disassembling the motor?  I need to replace the alternator and was thinking of just replacing those seals while I was in there and had it tore apart.

Scottie
Bulldog Kustoms - Denver
Specializing In Kustom Paint

The Blackhawk
1958 Enfield/Indian 711cc Twin

Building The 1st Ever Ace Performance Twin

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ERC

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Re: Replacing Crank Seal On 700 Twin
« Reply #1 on: May 08, 2013, 01:15:51 PM »
Yes you can replace the seal on the inner primary. Depending which primary is on the motor the later ones are a rubber seal the early ones are felt. there is also a seal for the gearbox shaft, can be eithe rubber or felt. If it's felt you can put a bullet 4 speed rubber one on that shaft. You don't need to disassemble the motor.   ERC
2-57 Apaches, 2-57 Trailblazers, 60 Chief, 65 Interceptor, 2004 Bullet, 612 Bullet chopped.

High On Octane

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Re: Replacing Crank Seal On 700 Twin
« Reply #2 on: May 08, 2013, 01:22:56 PM »
Thanks ERC.  From looking at Hitchcocks, it seems like I have the multi-piece felt seal set.  I believe the transmission shaft seal is rubber though.  Either way, they're cheap and easy to replace. 

Scottie
Bulldog Kustoms - Denver
Specializing In Kustom Paint

The Blackhawk
1958 Enfield/Indian 711cc Twin

Building The 1st Ever Ace Performance Twin

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ERC

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Re: Replacing Crank Seal On 700 Twin
« Reply #3 on: May 08, 2013, 02:40:37 PM »
Don't order anything till you pull it apart, you never know what inner primary you may have on there. the bikes old and may have been changed to a later or earlier one. They all bolt on the same basically.  ERC
2-57 Apaches, 2-57 Trailblazers, 60 Chief, 65 Interceptor, 2004 Bullet, 612 Bullet chopped.

High On Octane

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Re: Replacing Crank Seal On 700 Twin
« Reply #4 on: May 08, 2013, 03:26:15 PM »
Eff that crap.  I'll order both and send back what I don't need.  That's too much down time.  I want to ride now damn it!  LOL  Actually it's going to rain all today.  Bummer, I wanted to try out the new GPS speedometer app I downloaded for my phone.

Scottie
Bulldog Kustoms - Denver
Specializing In Kustom Paint

The Blackhawk
1958 Enfield/Indian 711cc Twin

Building The 1st Ever Ace Performance Twin

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ERC

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Re: Replacing Crank Seal On 700 Twin
« Reply #5 on: May 08, 2013, 03:54:01 PM »
I may have both types at home I'll check, the shipping would be cheaper.  ERC
2-57 Apaches, 2-57 Trailblazers, 60 Chief, 65 Interceptor, 2004 Bullet, 612 Bullet chopped.

ERC

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Re: Replacing Crank Seal On 700 Twin
« Reply #6 on: May 08, 2013, 04:55:09 PM »
I've got the big and small felt ones, no rubber ones.  ERC
2-57 Apaches, 2-57 Trailblazers, 60 Chief, 65 Interceptor, 2004 Bullet, 612 Bullet chopped.