Author Topic: Marzocchi assembly  (Read 6150 times)

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Offline Paul Harris

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Marzocchi assembly
« on: October 24, 2018, 06:51:10 pm »
Hi there - need advice! Installed new fork seals in my 40mmm forks - 40x52x10. I can't get them to seat low enough to fit the wipers. Put the washer on top, then circlip as advised, but the groove the circlip sits in doesn't allow enough room for the wiper? I also found that the left leg had long spring, 2 short and 1 top out, but right had no top out.
Hi

Offline Momus

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Re: Marzocchi assembly
« Reply #1 on: October 24, 2018, 07:20:05 pm »
Seals of the right ID and OD can come in different heights.. you may have a 10 when you need an 8..
If you love it, lube it.

Offline bigk

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Re: Marzocchi assembly
« Reply #2 on: October 24, 2018, 08:25:42 pm »
40 x 52 x 10 is correct size for 40mm Marzocchi in KTM. The wipers don't seat that well, you have to push them in carefully but it's still a bit dicky, especially if the fork leg has a dent or is out of round. You should have 1 x long spring, 1 x short spring & 1 x top out spring in each leg. Obviously someone previously got it wrong & put the "missing" top out spring in the wrong leg, in the wrong place.
K

Offline Paul Harris

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Re: Marzocchi assembly
« Reply #3 on: October 25, 2018, 09:25:48 am »
Thanks guys
I should have checked the height of these seals - I can't see what else could cause this but that the seals are a few mm higher. I think I'll trim the covers and silastic them in. Should be fine... ;D

Offline ozktm

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Re: Marzocchi assembly
« Reply #4 on: December 04, 2018, 04:14:08 pm »
Pages from Chassis Parts manual for your Forks showing assembly:

https://drive.google.com/open?id=10IC4dtcmw23DjnAyRLN1x3g0RaKUZeuo
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