Front fork oil check

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Michael S
Posts: 30
Joined: 18 Nov 2015 14:05
Location: Cambridge

Front fork oil check

Post by Michael S »

Happy New Year one and all.
Having just changed the oil seals on the front forks of my daughter's Honda 400/4 my thoughts turned to my 3 1/2 and thought that I might change the fork oil.
The Blue book is rather short of detail and I do not know what the socket on the head of the forks is for.
I am reluctant to put a spanner on the large hex nut, as I have just done on the Honda, until I know.
Can any one tell me and/or provide a diagram of the fork top please?
Regards
Michael
mbmm350s
Posts: 666
Joined: 22 Jun 2018 10:18
Location: Reading UK
Location: Berkshire UK

Re: Front fork oil check

Post by mbmm350s »

Hi Michael

If you a Morini Riders Club Member then you can download it here:

http://www.morini-riders-club.com/membe ... Italia.pdf

Best regards
Mark
Michael S
Posts: 30
Joined: 18 Nov 2015 14:05
Location: Cambridge

Re: Front fork oil check

Post by Michael S »

Hi Mark
Many thanks for the rapid response. I am a member (3316) but seem to have a muddle in accessing the Link you have provided.
Is it possible for you to email the Link to michaelj.scott80@gmail.com
Michael
Steve Brown
Posts: 1390
Joined: 12 Nov 2007 23:44
Location: Leicestershire

Re: Front fork oil check

Post by Steve Brown »

Micheal, I think you might be referring to the one-way/bleed valve that is inside the top nut. If so, the earlier fork top nuts had a 10mm hex socket to unscrew them and the later type had a male hexagon of about 30/32mm for a socket.
The earlier type had a small slotted head screw in the bottom of the 10mm hex socket, and the later type has an approx 4mm hex socket. If you want to take them out for cleaning it's simple but often a bit stuck with crud and corrosion. You'll then find a small spring and a ball underneath.
You don't have to take them out to remove the top cap nut when just changing/replenishing oil. There isn't a damper rod like on some forks connected to the top nuts, so quite simple.
All donations to the rest home for old Camels, Leicestershire.
Michael S
Posts: 30
Joined: 18 Nov 2015 14:05
Location: Cambridge

Re: Front fork oil check

Post by Michael S »

Hi Steve
Exactly what I wanted to know
Many thanks
Regards
Michael
Fastmongrel
Posts: 208
Joined: 07 Nov 2022 22:37
Location: Lancashire

Re: Front fork oil check

Post by Fastmongrel »

Michael S wrote: 04 Jan 2023 10:10 Hi Steve
Exactly what I wanted to know
Many thanks
Regards
Michael



Hi Michael I wonder if you have got round to doing your fork seals yet. My left leg has an oil leak that has suddenly got worse and I wonder what you used to push the seals into the stanchions. The Marzochi manual mentions a special press tool but I am hoping I can just use a large socket like I have done on my Japanese and British forks.
1981 3 1/2 Strada
George 350
Posts: 450
Joined: 16 Jun 2007 09:43
Location: Northampton

Re: Front fork oil check

Post by George 350 »

Hi,
Can I put in a 'plug' for a 'fork oil seal removing tool?
The alloy at the slider tops is rather thin and can easily break/chip if you aren't very careful. I use one like this.

https://www.ebay.co.uk/itm/174486346138 ... V2EALw_wcB
George
350 sport 1978, 350 Strada 1978
650 Norton 1967, 650 Kawasaki 1977 and 650 Enfield 2019
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