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Re: Hemophilic OPRV [Re: DavidP] #592410
03/29/15 5:01 am
03/29/15 5:01 am
Joined: May 2013
Posts: 4,670
Rotherham - S. Yorkshire
Allan Gill Online happy
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Allan Gill  Online Happy
BritBike Forum member
Joined: May 2013
Posts: 4,670
Rotherham - S. Yorkshire
Originally Posted By DavidP
I just don't find this marque attractive enough to repair everything which the manufacturer should have made correctly in the first place.


Back in the 60's I doubt anyone would have thought these bikes were not made correctly, just as we look at new production bikes and say the same now, give it forty years and we may all be able to pick fault in those too.

What ever the marque these bikes can all be worked upon and improved or kept as stock and enjoyed for what they have to offer as standard. Building them to what suits the owner is part of the interest, well for me it is anyway.

RE triples, I'd like to own one myself ( id like to own a lot of things) get to know it better and mess around with it like I have my A65. The race bike triples I've seen going around Cadwell and Anglesey circuit sure are nothing like what you see on the road.


beerchug
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Re: Hemophilic OPRV [Re: NickL] #592442
03/29/15 10:52 am
03/29/15 10:52 am
Joined: Oct 2008
Posts: 4,875
Gnashville
DavidP Online content

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DavidP  Online Content

BritBike Forum member
Joined: Oct 2008
Posts: 4,875
Gnashville
Originally Posted By NickL
The 5 speed..... first is very low.

And first is too damn high on the A65 box, only worse with the CR box.

Originally Posted By NickL

I also spent a lot of money on timing gears and crank pinions to get a quiet set.

The result of cost cutting at Triumph or assembling the timing gears from various engines into one. These gears used to be installed as matched sets. I never noticed the sound on any of my Triumphs.

Originally Posted By NickL
As it is a late one it had an iron pump which is good although I raced with zinc/crap ones for years and had no problems with oil pressure, likewise with the timing side bush.

One wonders why BSA switched from the iron pump on the A10 to the same crap metal from which they made carburetors, then switched back at the end of their existence.
One also wonders why the company which BSA owned could improve its oiling system design without the parent company following suit.


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
Re: Hemophilic OPRV [Re: DMadigan] #592464
03/29/15 12:55 pm
03/29/15 12:55 pm
Joined: Jan 2004
Posts: 3,569
ca, us
D
DMadigan Online content OP
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DMadigan  Online Content OP
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D
Joined: Jan 2004
Posts: 3,569
ca, us
Everything was made by hand back then. Presumably the timing gears, like pistons and cylinders, were graded and put into matching sets.
Probably the same reason US manufacturers went to plastic on a lot of engine parts. Iron is more costly to machine than aluminum/zinc alloy. No idea why they switched back except possibly warranty costs exceeded the material/machining cost of iron.
Triumph's always had a plunger pump, yes? It was only after BSA went belly up that they added the extra ball valves to reduce the failure rate.
I got these back from the shop yesterday. 50 PSI Banjo type for fitting a gauge or remote switch, 75 PSI type for A75/T150.

Still need to test for relief pressure. Viton O-ring seals the piston stop to reduce leakage. O-ring seal to the case instead of a gasket.

Re: Hemophilic OPRV [Re: DMadigan] #592546
03/29/15 9:20 pm
03/29/15 9:20 pm
Joined: Oct 2008
Posts: 4,875
Gnashville
DavidP Online content

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DavidP  Online Content

BritBike Forum member
Joined: Oct 2008
Posts: 4,875
Gnashville
The way I heard it they had workers sitting at a jig with three spindles. Grab one gear from each box, find three which spun well together and put aside for each engine. This sort of thing stopped once money got tight.

Looks like a nice piece, what's your projected price? Also, would I plug my stock OP light hole?


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
Re: Hemophilic OPRV [Re: DMadigan] #593147
04/02/15 2:40 pm
04/02/15 2:40 pm
Joined: Feb 2007
Posts: 2,202
Atlanta, GA USA
S
Semper Gumby Online content
BritBike Forum member
Semper Gumby  Online Content
BritBike Forum member
S
Joined: Feb 2007
Posts: 2,202
Atlanta, GA USA
Those look nice!


Gaggle of BSAs
a Honda
an old BMW
and a Montesa
Parking lot Elf in training
Re: Hemophilic OPRV [Re: DMadigan] #593402
04/04/15 8:09 am
04/04/15 8:09 am
Joined: Nov 2011
Posts: 80
NH
GreenMonster Offline
BritBike Forum member
GreenMonster  Offline
BritBike Forum member
Joined: Nov 2011
Posts: 80
NH
Hello Guys:

DMadigan how much are you asking for the 50 PSI rated relief valve?

You had stated earlier and included part of a photo stating, that you had fitted a gsxr charging system to the A65.

That I am going to look at!!!!!! as my current Stator needs some surgery anyway.

But if you could provide any further information, it would greatly appreciated.

Thank You


Never Allow The Radical Views Of The Few To Infringe On The Constitutional Rights Of The Many
Re: Hemophilic OPRV [Re: DMadigan] #593627
04/05/15 2:49 pm
04/05/15 2:49 pm
Joined: Aug 2010
Posts: 588
Toronto, Canada
B
Bola Offline
BritBike Forum member
Bola  Offline
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B
Joined: Aug 2010
Posts: 588
Toronto, Canada
Originally Posted By DMadigan
50 PSI Banjo type for fitting a gauge or remote switch.

Still need to test for relief pressure. Viton O-ring seals the piston stop to reduce leakage. O-ring seal to the case instead of a gasket.


I'd like one for my A65. PM sent.

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