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
Mike-71-650
Mike-71-650
Al, Birmingham
Posts: 35
Joined: January 2015
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
44 registered members (Andy Higham), 311 guests, and 434 spiders.
Key: Admin, Global Mod, Mod
Newest Members
Bruce1947, Robert mickey, Geofft, WJS, Trondgv
10333 Registered Users
Top Posters(30 Days)
Stuart 127
reverb 72
DavidP 62
Popular Topics(Views)
659,498 mail-order LSR
Forum Statistics
Forums34
Topics67,692
Posts657,639
Members10,333
Most Online3,995
Feb 13th, 2017
Like BritBike.com on Facebook

Previous Thread
Next Thread
Print Thread
Rating: 3
Page 4 of 4 1 2 3 4
Re: T150 common sense engine mods [Re: bon] #483383
03/28/13 11:24 am
03/28/13 11:24 am
Joined: Nov 2011
Posts: 257
terra Australis
P
Pre Unit Offline
BritBike Forum member
Pre Unit  Offline
BritBike Forum member
P
Joined: Nov 2011
Posts: 257
terra Australis
just found this on U Tube .

http://www.youtube.com/watch?v=tR7RuheaXl4

Cooel Exhaust . Sounds like all the pieces are there .

Support Your #1 BritBike Forum!

Check out British motorcycles for sale:
British Motorcycles on e-Bay UK, British motorcycles on e-Bay North America
Check out British motorcycles for sale:
British Motorcycles on e-Bay UK, British motorcycles on e-Bay North America
Re: T150 common sense engine mods [Re: Pre Unit] #483469
03/28/13 10:37 pm
03/28/13 10:37 pm
Joined: Nov 2009
Posts: 627
B
bon Offline OP
BritBike Forum member
bon  Offline OP
BritBike Forum member
B
Joined: Nov 2009
Posts: 627
Originally Posted By: Pre Unit
just found this on U Tube .

http://www.youtube.com/watch?v=tR7RuheaXl4

Cooel Exhaust . Sounds like all the pieces are there .


Yes i seen that vid pre unit and its just the sort of machine that i want to build, i asked the guy to come on here and tell us about it as its a real piece of motorcycle art.

Re: T150 common sense engine mods [Re: bon] #514182
11/10/13 9:55 am
11/10/13 9:55 am
Joined: Nov 2011
Posts: 257
terra Australis
P
Pre Unit Offline
BritBike Forum member
Pre Unit  Offline
BritBike Forum member
P
Joined: Nov 2011
Posts: 257
terra Australis

Re: T150 common sense engine mods [Re: bon] #550226
06/26/14 7:13 pm
06/26/14 7:13 pm
Joined: May 2014
Posts: 26
USA
O
OneEyedGiant Offline
BritBike Forum member
OneEyedGiant  Offline
BritBike Forum member
O
Joined: May 2014
Posts: 26
USA
Hey guys. Where does one buy the Bob Newby clutch converstion kit to include the primary cover? Any idea on how much these kits cost?


Re: T150 common sense engine mods [Re: OneEyedGiant] #550256
06/27/14 2:45 am
06/27/14 2:45 am
Joined: Mar 2006
Posts: 3,731
Norfolk, UK
L.A.B. Online content
BritBike Forum member
L.A.B.  Online Content
BritBike Forum member
Joined: Mar 2006
Posts: 3,731
Norfolk, UK

Re: T150 common sense engine mods [Re: L.A.B.] #550266
06/27/14 7:29 am
06/27/14 7:29 am
Joined: May 2014
Posts: 26
USA
O
OneEyedGiant Offline
BritBike Forum member
OneEyedGiant  Offline
BritBike Forum member
O
Joined: May 2014
Posts: 26
USA
Thank LAB, I contacted Bob and he sells just the belt drive but not all the components needed for the entire Kit to include the Quaife 5 speed gearbox. Bob Newby said it's available possibly from P&M Cycles in the UK but I've not had an opportunity to call them yet. Thanks.

Re: T150 common sense engine mods [Re: bon] #550490
06/29/14 1:11 am
06/29/14 1:11 am
Joined: Jan 2004
Posts: 3,757
ca, us
D
DMadigan Offline
BritBike Forum member
DMadigan  Offline
BritBike Forum member
D
Joined: Jan 2004
Posts: 3,757
ca, us
The belt drive needs a drilled mainshaft for the clutch pushrod (actuated by a twin lifter in the gearbox cover). I am not sure but presume the Newby clutch fits on a standard mainshaft. You may be able to have the shaft drilled.

Re: T150 common sense engine mods [Re: bon] #664933
08/22/16 10:14 pm
08/22/16 10:14 pm
Joined: Sep 2001
Posts: 488
Great Southern Land
tridentt150v Offline
BritBike Forum member
tridentt150v  Offline
BritBike Forum member
Joined: Sep 2001
Posts: 488
Great Southern Land
One thing I like to do is extend the oil return dowels from the head through the barrels. I usually use an inch/25mm of tube for this.
I then counter drill the barrels and head to account for this increase. But I also run a NH 1000cc kit and the head sits a little bit higher on the lip of the bores.

Doing this - in my opinion - means that there is less chance of the oilway being affected by piston vacuum and pressure. It also means that, if you are using a sealant, the chances of any sealant flowing into the oilway when you tension the head down is negated.

I am not saying everyone needs to do this, I just saw benefit in it and the room was there to do it.

Re: T150 common sense engine mods [Re: bon] #664988
08/23/16 11:08 am
08/23/16 11:08 am
Joined: Apr 2005
Posts: 1,660
Mississauga, Ontario.
A
Adam M. Offline
BritBike Forum member
Adam M.  Offline
BritBike Forum member
A
Joined: Apr 2005
Posts: 1,660
Mississauga, Ontario.
Really common sens engine mode I did was doweling the rocker boxes.
It'll keep rocker box gaskets in place.

Re: T150 common sense engine mods [Re: Adam M.] #665007
08/23/16 2:54 pm
08/23/16 2:54 pm
Joined: Nov 2009
Posts: 2,179
Netherlands
Peter R Offline

BritBike Forum member
Peter R  Offline

BritBike Forum member
Joined: Nov 2009
Posts: 2,179
Netherlands
Originally Posted By Adam M.
Really common sens engine mode I did was doweling the rocker boxes.
It'll keep rocker box gaskets in place.

Adam, can you please elaborate on how you did this ?
I have a persistent (small) oil leak from a rockerbox gasket.
Replacement of the gasket only cured the leak for a short while.


Last edited by Peter R; 08/23/16 2:56 pm.

Peter.
1974 Commando 850
1972 Trident T150T
1961 Goldie DBD34
1969 Benelli 250 sport special
Re: T150 common sense engine mods [Re: ste] #745357
08/13/18 10:16 am
08/13/18 10:16 am
Joined: Feb 2015
Posts: 298
Melbourne Oz
S
Steven A Offline
BritBike Forum member
Steven A  Offline
BritBike Forum member
S
Joined: Feb 2015
Posts: 298
Melbourne Oz
Originally Posted by ste
This is what you get for your money.
[Linked Image]


In this setup is there no cush drive? If so does the belt serve as the cush drive. Is there a big empty space were the clutch used to be?

Re: T150 common sense engine mods [Re: bon] #745376
08/13/18 4:17 pm
08/13/18 4:17 pm
Joined: Jan 2004
Posts: 3,757
ca, us
D
DMadigan Offline
BritBike Forum member
DMadigan  Offline
BritBike Forum member
D
Joined: Jan 2004
Posts: 3,757
ca, us
Yes, no cush drive and a big hole where the clutch was with the belt setup. The belt has steel cable running through it to provide flex but the stretch is nil (except for the modulus of elasticity of steel). Somewhat surprised there is not a belt drive for the pump. I think an offset sprocket is available to allow a wider rear tyre on a race bike.
Two ways to dowel the rockerboxes, using the outer two 5/16" bolt holes or the 1/4" bolts at the ends of the rockerbox. There is not enough material around the hole on the AM heads to use the 5/16" holes. The 1/4" holes can use used on either. The dowels are pressed into the rockerbox and slip fit in the head. You need a mill with a digital readout or CNC to do this properly.
As long as you are doing this you should spot face the three 1/4" holes at the pocket lip with a 7/16" end mill and use button head screws which have 64% more area under the head and less likely to crush the material around the holes.

Page 4 of 4 1 2 3 4


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