Author Topic: MC5 build...another one.  (Read 3301 times)

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Offline Grunter215

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MC5 build...another one.
« on: September 02, 2013, 09:14:09 am »
My build is a 1976 MC5 250. Frame/swingarm/t-clamps are done.Motor nearly done. Now for suspension. Will rebuild original fork/shocks at this stage. Whats the best mods/setup for forks (leading axle cerianis). Need seals and wiper boots with cable holder are these available locally. What  seals fit ? Also swing-arm pivot do ya use grease or fill with oil? cheers                                             

Offline Slakewell

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Re: MC5 build...another one.
« Reply #1 on: September 02, 2013, 09:56:29 am »
I use anti-seize in the swingarm and some grease in the bearings. 
Current bikes. KTM MC 250 77 Husky CR 360 77, Husky 82 420 Auto Bitsa XR 200 project. Dont need a pickle just need to ride my motorcickle

Offline ozktm

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Re: MC5 build...another one.
« Reply #2 on: September 03, 2013, 05:29:05 am »
I am running my Ceriani (leading axles) as standard, bought new valve kits from Al B. And they feel nice.
Swingarm, I think i am running oil in mine from memory. Haven't seen any leaks. But will check nearer the end of the year. Changing those bearings is one job i absolutely hate with passion.

Regards,
Adrian Goold #101

'72 KTM 175 |'74.5 KTM 250 |'74.5 KTM 400 |Hagon/KTM 250 proj|'76 MC5 250 Project |'76 MC5 400|'78 KTM 250 Project |'81 KTM 250 MC | '81 KTM 495 MC

Offline Grunter215

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Re: MC5 build...another one.
« Reply #3 on: October 30, 2013, 07:12:14 pm »
Ok finally back to '76 MC250  build. Stripped the fork lowers ready to paint ,went to remove seals ...no circlip?Check manual 2 seals+circlip. Mine has seal in metal casing. ?? Is this some alternative or a dodgy fix.I'm assuming the casing has been glued in also. Also found cracks around 2 axle bolt holes on both legs. Might be to much stuffin round to fix so anyone got Ceriani leading axle lower legs for sale. What ya thoughts boys . Cheers

Offline ozktm

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Re: MC5 build...another one.
« Reply #4 on: October 31, 2013, 12:37:56 pm »
Good luck with finding those leg lowers.....those forks are hard to come by now.
Its a common problem with these and the leading axle marzocchi forks.

You will find a set of marzocchi 35mm leading axle forks easier on the net.
Regards,
Adrian Goold #101

'72 KTM 175 |'74.5 KTM 250 |'74.5 KTM 400 |Hagon/KTM 250 proj|'76 MC5 250 Project |'76 MC5 400|'78 KTM 250 Project |'81 KTM 250 MC | '81 KTM 495 MC

Offline KTM47

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Re: MC5 build...another one.
« Reply #5 on: October 31, 2013, 01:46:06 pm »
Is the cracking because the forks are magnesium?
MAICOS RULE DESPITE THE FOOLS

1999 KTM 200, 1976/77 KTM 400,1981 Maico 490

Offline ozktm

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Re: MC5 build...another one.
« Reply #6 on: November 01, 2013, 06:52:36 am »
Continual over tightening making it fatigue. You could get them welded, but need someone good.

Regards,
Adrian Goold #101

'72 KTM 175 |'74.5 KTM 250 |'74.5 KTM 400 |Hagon/KTM 250 proj|'76 MC5 250 Project |'76 MC5 400|'78 KTM 250 Project |'81 KTM 250 MC | '81 KTM 495 MC

Offline Slakewell

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Re: MC5 build...another one.
« Reply #7 on: November 09, 2013, 04:20:35 pm »
I can weld them up NP but finding some mag filler rods is not easy as you can only buy by the kilo and it's not cheap.
Current bikes. KTM MC 250 77 Husky CR 360 77, Husky 82 420 Auto Bitsa XR 200 project. Dont need a pickle just need to ride my motorcickle