BritBike Forum logo
BritBike Sponsor BritBike Sponsor BritBike Sponsor
BritBike Sponsor

BritBike Sponsor

BritBike Sponsor
BritBike Sponsor BritBike Sponsor BritBike Sponsor
Jwood & co JRC Engineering dealers Jwood & co
Home | Sponsors, Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons, "OLD" BritBike Forum | DVD- Manuals & Parts books | BritBike Stickers & Decals
Upgrade to: Premium Membership | Premium Life Membership | Vendor Membership | Site Sponsor Membership
Member Spotlight
Torch
Torch
so.cal
Posts: 85
Joined: September 2010
Show All Member Profiles 
Shout Box
Search eBay for motorcycle parts in following countries
Australia, Canada, France, Holland, Italy, United Kingdom, USA
Random Gallery photo
Who's Online Now
35 registered members (BikeVice), 202 guests, and 404 spiders.
Key: Admin, Global Mod, Mod
Newest Members
Mal Wood, FireGuyKC, spuggy, Vinny Cotroneo, KeithM
10286 Registered Users
Top Posters(30 Days)
Stuart 95
Lannis 65
Mori55 58
Popular Topics(Views)
635,674 mail-order LSR
Forum Statistics
Forums34
Topics67,361
Posts654,029
Members10,286
Most Online3,995
Feb 13th, 2017
Like BritBike.com on Facebook

Previous Thread
Next Thread
Print Thread
Rate Thread
elephant foot swivel adjusters. #731126
04/06/18 3:31 pm
04/06/18 3:31 pm
Joined: Jul 2002
Posts: 142
Bakersfield CA
Tony Cornett_dup1 Offline OP
BritBike Forum member
Tony Cornett_dup1  Offline OP
BritBike Forum member
Joined: Jul 2002
Posts: 142
Bakersfield CA
Has anyone used the 911 Porsche swivel feet valve adjusters on an BSA a-65? If so did you have to cut them down? Pictures if you have them.

Thanks T.C.

Support your #1 BSA Forum and our favorite sponsors

Check out BSA on e-bay: BSA Parts in UK, BSA Motorcycles in UK, BSA Parts in North America, BSA Motorcycles in North America

 
 
Re: elephant foot swivel adjusters. [Re: Tony Cornett_dup1] #731145
04/06/18 5:48 pm
04/06/18 5:48 pm
Joined: Jan 2006
Posts: 153
Kristiansund. Norway
A
Arnstein Offline
BritBike Forum member
Arnstein  Offline
BritBike Forum member
A
Joined: Jan 2006
Posts: 153
Kristiansund. Norway
https://www.dropbox.com/s/fnhpjihea4664y2/P1000653.JPG?dl=0

Picture of the VW (Porsche?) ones I´m using in my Spitfire (bought from Rainer Traupel +49 4532260227). I cut them shorter and cut a slot in the end for adjustment with a screwdriver and also use aluminium nuts. The pushrods will of course also have to be shortened a little. I have had them in my engine for nearly 40 000km.. works excellent and no more pitting in the valve end. With the alu nut the weight is approx the same as the BSA ones and the cut off on the pushrod.


Arnstein

BSA Spitfire MK3.800cc
Honda CB450T -71
Laverda RGS 1130cc -85
Ducati 1098 -08
Re: elephant foot swivel adjusters. [Re: Tony Cornett_dup1] #731151
04/06/18 6:33 pm
04/06/18 6:33 pm
Joined: Jan 2004
Posts: 3,720
ca, us
D
DMadigan Offline
BritBike Forum member
DMadigan  Offline
BritBike Forum member
D
Joined: Jan 2004
Posts: 3,720
ca, us
I have used them but as Arnstein said you have to shorten the pushrods. You also need to rethread the rockers for the 8x1mm thread. I now make EF adjusters in the 5/16-24 thread for triples but they can be used on twins also. Minimum clearance from valve tip to rocker is 0.4". Before shortening the pushrods, check the geometry to see if the valve stem should be shortened.
[Linked Image]
Triple adjusting screw shown for reference.

Re: elephant foot swivel adjusters. [Re: DMadigan] #731285
04/07/18 10:26 pm
04/07/18 10:26 pm
Joined: Jan 2006
Posts: 153
Kristiansund. Norway
A
Arnstein Offline
BritBike Forum member
Arnstein  Offline
BritBike Forum member
A
Joined: Jan 2006
Posts: 153
Kristiansund. Norway


https://www.dropbox.com/s/h1l9njyivcyz1cl/P1000654.JPG?dl=0

I shortened the pushrods ca 3mm ( they differ a bit from new and so does the rockers ) and that will make the measurement from under the rocker to under the swivel approx 8.5mm ( holding the swivel square to the underside of the rocker ) when adjusted valve clearance ca 0.25mm exhaust.. the wear pattern under the EF showing evenly across.
DMadigan I do´nt understand what´s meanth measuring the minimum 0.4" (10mm) clearance, is this measured similar to my 8.5mm?


Arnstein

BSA Spitfire MK3.800cc
Honda CB450T -71
Laverda RGS 1130cc -85
Ducati 1098 -08
Re: elephant foot swivel adjusters. [Re: Tony Cornett_dup1] #731300
04/08/18 1:08 am
04/08/18 1:08 am
Joined: Jul 2002
Posts: 142
Bakersfield CA
Tony Cornett_dup1 Offline OP
BritBike Forum member
Tony Cornett_dup1  Offline OP
BritBike Forum member
Joined: Jul 2002
Posts: 142
Bakersfield CA
Why not bevel the bottom of the rockers so the swivels will work and you will not have to shorten the push rods only the elephant foot stems? You will lose a few threads but I think you will be ok.

This method has been used by the xs650 group.

Re: elephant foot swivel adjusters. [Re: Tony Cornett_dup1] #731320
04/08/18 10:01 am
04/08/18 10:01 am
Joined: Jan 2006
Posts: 153
Kristiansund. Norway
A
Arnstein Offline
BritBike Forum member
Arnstein  Offline
BritBike Forum member
A
Joined: Jan 2006
Posts: 153
Kristiansund. Norway
Might be that this will loose too much material / threads using the VW ones which has a long unthreaded part of the stem. The Nice Madigan ones will probably be better.


Arnstein

BSA Spitfire MK3.800cc
Honda CB450T -71
Laverda RGS 1130cc -85
Ducati 1098 -08
Re: elephant foot swivel adjusters. [Re: Tony Cornett_dup1] #731334
04/08/18 2:04 pm
04/08/18 2:04 pm
Joined: Aug 2012
Posts: 309
Hampshire, England
DoubleDiamond Offline
BritBike Forum member
DoubleDiamond  Offline
BritBike Forum member
Joined: Aug 2012
Posts: 309
Hampshire, England
The A65 uses 5/16" x 26 tpi adjusters - they are BSCy - British Standard Cycle. Do you make these David?


BSA: '71 B175; '68 B25; '71 A65; '71 A75
Triumph: '87 T140; '72 T150v
Re: elephant foot swivel adjusters. [Re: Tony Cornett_dup1] #731344
04/08/18 3:11 pm
04/08/18 3:11 pm
Joined: Jul 2002
Posts: 142
Bakersfield CA
Tony Cornett_dup1 Offline OP
BritBike Forum member
Tony Cornett_dup1  Offline OP
BritBike Forum member
Joined: Jul 2002
Posts: 142
Bakersfield CA
D-squared I just run an eight mm tap through the rockers works fine for my Porsche adjusters.

Re: elephant foot swivel adjusters. [Re: Tony Cornett_dup1] #731355
04/08/18 5:15 pm
04/08/18 5:15 pm
Joined: Aug 2012
Posts: 309
Hampshire, England
DoubleDiamond Offline
BritBike Forum member
DoubleDiamond  Offline
BritBike Forum member
Joined: Aug 2012
Posts: 309
Hampshire, England
Hi Tony. Yes, I did that on both Triples. Trouble is that the rockers are pretty hard and often it needs more than one 8x1 HSS tap to do all 6!

OK maybe 25.4tpi is closer to 26tpi than 24tpi, but it does mean that there is no going back.


BSA: '71 B175; '68 B25; '71 A65; '71 A75
Triumph: '87 T140; '72 T150v
Re: elephant foot swivel adjusters. [Re: DoubleDiamond] #731412
04/09/18 12:28 am
04/09/18 12:28 am
Joined: Aug 2014
Posts: 313
Bowral NSW Australia
John Goodwin Offline
BritBike Forum member
John Goodwin  Offline
BritBike Forum member
Joined: Aug 2014
Posts: 313
Bowral NSW Australia
One of the go fast changes made to the T150 and T160's was to get rid of the swivel style tappet adjusters and go with Elephant Foot "Norman Hyde" solid tappet adjusters.
I'm puzzled why you'd go this way and not use these which are much lighter and an improvement on the stock adjusters. No need to mess with pushrods, no messing with the rocker arm threads. Seems to be excessive overkill using those swivel types to me unless you are expecting to be doing massive mileage!

https://www.classicbritishspares.com/collections/bsa-engine/products/mushroom-tappet-adjusters

Last edited by John Goodwin; 04/09/18 12:32 am.

Current: 2 x 1966 A65S, 1 x 1967 A65SA, 1 x 69/70? A65LA space Y, 1 X D14/4 & 1 x B175
Past: 4 x 1976 T160V, 1 74/5 T150V, 83 model GSX 750 ESD, Z650, Katana 1100(Bathurst Model), 79 T140V, 70's TR6, 2 x 1971 BSA 250 Gold Stars, 50's 350 Goldie, A65 Spitfire semi basket case, 1965/6? A65 LC, Tiger 21 350 & a D14/4 Bantam, 175 Bridgestone Twin with Zimmerman discs!
Re: elephant foot swivel adjusters. [Re: Tony Cornett_dup1] #731434
04/09/18 12:38 pm
04/09/18 12:38 pm
Joined: Apr 2005
Posts: 2,381
Bega NSW Australia
Mark Parker Offline
BritBike Forum member
Mark Parker  Offline
BritBike Forum member
Joined: Apr 2005
Posts: 2,381
Bega NSW Australia
I use the mushroom adjusters in my A65 they work well. I use lash caps on the valves. Because I have alloy cyls and C/molly pushrods I have to set it with zero clearance cold, and even then when the thing is hot the clearance probably gets a bit big, so the caps get hammered. The std adjusters dug holes in the caps but the mushroom heads do not. The swivel foot type look good.


mark
Re: elephant foot swivel adjusters. [Re: Tony Cornett_dup1] #731466
04/09/18 5:59 pm
04/09/18 5:59 pm
Joined: Jan 2004
Posts: 3,720
ca, us
D
DMadigan Offline
BritBike Forum member
DMadigan  Offline
BritBike Forum member
D
Joined: Jan 2004
Posts: 3,720
ca, us
I only have the 5/16"-24 which work on the triples and T140. I do not know if the T120 changed over to UNF on the rockers.
8x1mm is closer to the 5/16-26 TPI and need very little material removed to fit the A65. The Porsche adjusters are somewhat expensive ~$35 each.
The reason for changing to EF adjusters over the others is a sphere has a single point contact which is why lash caps are needed with them. The EF adjusters have a ball/socket which has less wear and spreads the load over the top of the valve stem. The T160 adjusters are similar but with a smaller flat on the valve. When the T160 adjuster is loaded and slides across the valve, the edge of the flat will dig in more then the larger EF foot. Same effect as when lapping a flat part and drawing it back and forth rather than a circular motion.

Re: elephant foot swivel adjusters. [Re: DMadigan] #731773
04/13/18 9:22 am
04/13/18 9:22 am
Joined: Aug 2016
Posts: 80
UK - Bucks
Steve Wilson Offline

BritBike Forum member
Steve Wilson  Offline

BritBike Forum member
Joined: Aug 2016
Posts: 80
UK - Bucks
Hi. You're making these? How much for a set?
Thanx
Steve


SJW
Re: elephant foot swivel adjusters. [Re: Tony Cornett_dup1] #731828
04/13/18 9:53 pm
04/13/18 9:53 pm
Joined: Jan 2004
Posts: 3,720
ca, us
D
DMadigan Offline
BritBike Forum member
DMadigan  Offline
BritBike Forum member
D
Joined: Jan 2004
Posts: 3,720
ca, us
Steve, PM for a price list. Thanks.


Moderated by  Allan Gill, Jon W. Whitley 


Home | Sponsors | Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons | "OLD" BritBike Forum | DVD- Manuals & Parts books | BritBike Stickers & Decals
Upgrade to: Premium Membership | Premium Life Membership | Vendor Membership | Site Sponsor Membership
Powered by UBB.threads™ PHP Forum Software 7.6.1.1