BritBike Forum logo
BritBike SponsorBritBike SponsorBritBike SponsorBritBike SponsorBritBike Sponsor SteadfastCyclesBritBike SponsorBritBike SponsorBritBike SponsorBritBike SponsorHepolite PistonsBritBike Sponsor
Upgrade to: Gold Membership | Premium Membership | Vendor Membership | Site Sponsor Membership
Member Spotlight
Gary E
Gary E
Medford, Oregon
Posts: 2,704
Joined: January 2006
ShoutChat Box
Comment Guidelines: Do post respectful and insightful comments. Don't flame, hate, spam.
Search eBay for motorcycle parts in following countries
Australia, Canada, France, Holland, Italy, United Kingdom, USA
Random Gallery photo
a word from..
Manuals on DVD (Shipping included)
Previous Thread
Next Thread
Print Thread
Rate Thread
70 TR6R fork seals again...
#809683 05/20/20 9:28 pm
Joined: Mar 2006
Posts: 205
slofut Offline OP
Britbike forum member
OP Offline
Britbike forum member
Joined: Mar 2006
Posts: 205
Are the No-Leak fork seals a must have at $49? I have a new pair of regular seals left over from the T120, I got the $leak proof seals for that one and didn't use these. But I'm wondering should I just use these standard replacements? Are they prone to leak at best or something?


'68 Bonnie, '70 TR6r
'74 CL360
trail 70's and minitrails
Support Your #1 BritBike Forum!

Check out British motorcycles for sale: British Motorcycles on e-Bay UK, British motorcycles on e-Bay North America
Re: 70 TR6R fork seals again...
slofut #809831 05/21/20 4:08 pm
Joined: Mar 2006
Posts: 205
slofut Offline OP
Britbike forum member
OP Offline
Britbike forum member
Joined: Mar 2006
Posts: 205
Well, no comments yet on this, but I did find some good info on the other forum on leakproof fork seals although for later T140 bikes. Those seals being different than the 70 and earlier bikes, I'm still unsure if this is a solution looking for a problem, so I'm cleaning everything up and replacing with common seals 97-1500T from JRC Engineering.


'68 Bonnie, '70 TR6r
'74 CL360
trail 70's and minitrails
Re: 70 TR6R fork seals again...
slofut #809858 05/21/20 7:27 pm
Joined: Apr 2005
Posts: 1,883
Likes: 3
Britbike forum member
Offline
Britbike forum member
Joined: Apr 2005
Posts: 1,883
Likes: 3
Always used regular seals in my 70 A65 front end, changed them once during 10 years period.
Bought in regular bearings and seals store costed less than $20. CAD.

1 member likes this: slofut
Re: 70 TR6R fork seals again...
slofut #809869 05/21/20 9:12 pm
Joined: Mar 2006
Posts: 205
slofut Offline OP
Britbike forum member
OP Offline
Britbike forum member
Joined: Mar 2006
Posts: 205
Thanks Adam. I suspect most of the seal leaks are from water and dirt getting past the gaiters and destroying the seals. Leak Proof wouldnt help that. smile


'68 Bonnie, '70 TR6r
'74 CL360
trail 70's and minitrails
Re: 70 TR6R fork seals again...
slofut #809930 05/22/20 5:39 pm
Joined: Feb 2014
Posts: 1,208
Likes: 2
Parts Dealer
Offline
Parts Dealer
Joined: Feb 2014
Posts: 1,208
Likes: 2
I honestly have always used EMGO fork seals and never had a problem

However, there are many things that make a "good seal"

Fork tube condition (finish) diameter, etc

I suppose it depends on who you ask!


[Linked Image from live.staticflickr.com]
Re: 70 TR6R fork seals again...
slofut #809933 05/22/20 6:12 pm
Joined: Mar 2006
Posts: 205
slofut Offline OP
Britbike forum member
OP Offline
Britbike forum member
Joined: Mar 2006
Posts: 205
Thank you CBS. I agree tube condition and proper assembly is prob more important than which seal. Appreciate the reply.


'68 Bonnie, '70 TR6r
'74 CL360
trail 70's and minitrails
Re: 70 TR6R fork seals again...
slofut #809937 05/22/20 7:39 pm
Joined: Sep 2008
Posts: 1,447
Likes: 3
Britbike forum member
Offline
Britbike forum member
Joined: Sep 2008
Posts: 1,447
Likes: 3
I find the Leak Proof seals too sticky but I’ve only used them in later, 71-on forks. The 70 stanchions are hard chromed (or so they claimed) and protected with gaiters so I’ve always used standard seals with those with no problems. Earlier, bare steel stanchions wear the seals faster so Leak Proofs May be better on them. Anyway I prefer less stiction over durability but so far the Ariete seals on my 72 provide a smooth ride and no leaks. One season only so far, too early to tell.

SR

1 member likes this: slofut
Re: 70 TR6R fork seals again...
slofut #809945 05/22/20 9:22 pm
Joined: Jun 2007
Posts: 6,831
Likes: 6
Britbike forum member
Offline
Britbike forum member
Joined: Jun 2007
Posts: 6,831
Likes: 6
I highly recommend fork gaiters, whether you bike came with them or not. Once fitted to my Commando, I haven't had to change the fork seals even once in ten years and that was basically a yearly chore before.
The leak proof seals I think are double lipped seals and were never fitted to our bikes, I believe. They do have twice as much seal friction as ordinary seals at least theoretically.
I'm a believer in felt wipers. I know...what a Luddite. With those, there is zero seal friction and the ride is smooth as silk over bumpy roads at low speeds.
But, they fall down at higher speeds, mainly because damping is virtually non-existent and the forks are very wimpy.
Cheers,
Bill

Last edited by HawaiianTiger; 05/22/20 9:27 pm.

Bikes
1974 Commando
1985 Honda Nighthawk 650
1957 Thunderbird/T110 "Black Tiger"
Antique Fans: Loads of Emersons (Two six wingers) plus gyros and orbiters.
Re: 70 TR6R fork seals again...
slofut #809966 05/23/20 2:49 am
Joined: Mar 2006
Posts: 205
slofut Offline OP
Britbike forum member
OP Offline
Britbike forum member
Joined: Mar 2006
Posts: 205
Bill the leak proof seals are indeed double lipped, and on my 68 t120 they do stick. I havent ridden that bike yet so idk if it will get better with use. Until now I hadnt heard that these may introduce some stiction but that explains a lot. Chrome on my 70 bike tubes were pretty good so im glad to be going with stock replacement seals. Just got two pair of the expensive 10yr gaiters for both triumps. 👍


'68 Bonnie, '70 TR6r
'74 CL360
trail 70's and minitrails

Moderated by  John Healy 

Link Copied to Clipboard
Home | Sponsors | Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons | DVD- Manuals & Parts books
Upgrade to: Gold Membership | Premium Membership | Vendor Membership | Site Sponsor Membership
Powered by UBB.threads™ PHP Forum Software 7.7.4