The Triumph Dolomite Club - Discussion Forum

The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
It is currently Thu Mar 28, 2024 8:47 am

All times are UTC




Post new topic  Reply to topic  [ 11 posts ] 
Author Message
PostPosted: Fri Aug 04, 2017 3:32 pm 
Offline
TDC Member

Joined: Sun Mar 16, 2008 2:52 pm
Posts: 2303
Clutch forks ( certainly 1850 & Vitesse) are getting scarce. I have 2 broken ones here.
So I took them down to the local engine recon/ machine shop place and asked them what they could do. As you can see the problem is the pivot point breaks through, resulting in clutch operation on the floor !
They had a discussion about what to do and concluded that welding them up would be a non-starter as the pivot point is highly stressed. All they could suggest was getting a steel insert made up and welded in after drilling out the old metal. They did note that this would put the clutch operation point higher up if the insert was done from the inside. Machining the spherical pivot was not easy. It was also noted that the pivots on the clutch lever would have to be pressed out and remade.
If it was the last clutch fork for the last Dolomite on this Earth they would try it, but not while there are still parts on E-Bay. ( at a price).
Does anyone have a contact in a machine shop that would be able to look at this please ?
Thanks,
Tony.


Attachments:
1850 clutch forks.JPG
1850 clutch forks.JPG [ 60.29 KiB | Viewed 1668 times ]
Top
   
PostPosted: Fri Aug 04, 2017 4:58 pm 
Offline
TDC Shropshire Area Organiser

Joined: Sun Aug 21, 2011 5:12 pm
Posts: 7013
Location: Highley, Shropshire
I can visualize a "top hat" piece, with a recessed hemisherical space for the pivot. Properly done, this wouldn't alter the pivot point and the "brim" of the top hat would stop it pushing through again. Then a carefully drilled hole and a couple of tacks to keep it in place and the job's a goodun!

I don't see the problem, almost anybody with a lathe could knock up what I envisage!

Steve

_________________
'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!

Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.


Top
   
PostPosted: Fri Aug 04, 2017 9:37 pm 
Offline
TDC Member

Joined: Sun Mar 16, 2008 2:52 pm
Posts: 2303
Thanks Steve; I was thinking along the same lines but what do you do about the "highly stressed" bit of the fork please ?
Thanks,
Tony.


Top
   
PostPosted: Fri Aug 04, 2017 10:35 pm 
Offline
TDC Member
User avatar

Joined: Mon Aug 10, 2015 8:20 pm
Posts: 1293
Location: Shetland / here & there
Get it a milky sweet tea, and tell it everything will be fine in the end...

_________________
Current fleet: '75 Sprint, '73 1850, Daihatsu Fourtrak, Honda CG125, Yamaha Fazer 600, Shetland 570 (yes it's a boat!)

Past fleet: Triumph 2000, Lancia Beta Coupe, BL Mini Clubman, Austin Metro, Vauxhall Cavalier MK1 & MK2, Renault 18 D, Rover 216 GSI, Honda Accord (most expensive car purchase, hated, made out of magnetic metal as only car I've ever been crashed into...4 times), BMW 318, Golf GTi MK3 16v x 3


Top
   
PostPosted: Fri Aug 04, 2017 11:19 pm 
Offline
TDC Member
User avatar

Joined: Wed Jul 04, 2007 12:27 pm
Posts: 1909
Location: Hampshire
Quote:
Get it a milky sweet tea, and tell it everything will be fine in the end...
That's what the nurse gave me when I fainted whilst giving blood, worked for me! :lol:


Top
   
PostPosted: Sat Aug 05, 2017 7:02 am 
Offline
TDC Member

Joined: Sun Oct 26, 2008 7:26 am
Posts: 2473
Same part as vitesse/GT6.....

I am sure I remember somebody welded in a core plug to effect a repair.
But a top hat piece would be rather better.

I have seen them for sale at £5-10 at stoneleigh and so on. Maybe I should be buying them all up as a pension fund......

_________________
Clive Senior
Brighton


Top
   
PostPosted: Sat Aug 05, 2017 8:00 am 
Offline
TDC Member
User avatar

Joined: Sat Apr 12, 2014 11:02 pm
Posts: 2279
Location: Nr Kenilworth
From memory, the pivot point will have been heat treated (seem to remember seeing blueing in that area). Making a piece will be easy enough as Steve suggested but getting it heat treated in the local area (of the fork) could be difficult.
Also isnt there a spring clip thingy thats riveted to the arm? Would it be wise to replace this clip with something new too?

Tony

_________________
Membership 2014047


Top
   
PostPosted: Sat Aug 05, 2017 8:01 pm 
Offline
TDC Shropshire Area Organiser

Joined: Sun Aug 21, 2011 5:12 pm
Posts: 7013
Location: Highley, Shropshire
The original pivot point would have been heat treated because it was just an area of a relatively thin steel pressing. Add a more substantial block of a decent grade of steel and lubricate with a generous dollop of copper ease grease and I reckon it will cope. The proof of the pudding, of course, being in the eating.
You can see in Tony's pics, the rivet holding the retaining clip in place, up near the pushrod dent. I don't think you'd need to mess with this at all.

One of my neighbours is retired, bored and has a small metal lathe. If you send me one of your duff ones Tony, i'll see if I can persuade him to attempt a fix along the lines I suggested. If it works there could be a business opportunity for him!

Steve

_________________
'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!

Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.


Top
   
PostPosted: Mon Aug 07, 2017 9:31 am 
Offline
TDC West Mids Area Organiser
User avatar

Joined: Thu Sep 28, 2006 1:13 pm
Posts: 13316
Location: Over here...can't you see me?
Were he retired without a lathe, then he'd be bored.

As he has a lathe, he is potentially boring! :P


Top
   
PostPosted: Mon Aug 07, 2017 11:30 am 
Offline
TDC Member
User avatar

Joined: Sat Apr 12, 2014 11:02 pm
Posts: 2279
Location: Nr Kenilworth
No hes turning not boring :lol:

Tony

_________________
Membership 2014047


Top
   
PostPosted: Tue Aug 15, 2017 12:47 pm 
He could be also be facing and turning. :lol:


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 11 posts ] 

All times are UTC


Who is online

Users browsing this forum: AhrefsBot [Bot] and 19 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited