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Topics - twolitre

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1
British Bikes / Identification please!
« on: January 20, 2014, 03:05:53 PM »
I have been asked whether I could identify this bike. At least the crew are British so the bike may be.
The Cylinder looks almost as if it may be water cooled, but no radiator is visible. I have no idea though.
The driver is the father of the person wishing to know.
Can anyone help?

http://www.smallmotorhome.co.uk/forum/attachment.php?attachmentid=5845&d=1320591981

I imagine when that gun was fired it probably went backwards!
Jim.

2
British Bikes / Head Gasket blow.
« on: October 18, 2013, 12:41:06 PM »
Just over 1000 miles ago I had the barrels liners on my Triumph 5T replaced and bored back to standard.
Although I had no issues with running in I was getting a little bit unhappy with how it was settling down and with the power compared with my 5TA. Even allowing for it being a heavier machine.
When the head was removed it revealed evidence of "blow by" on the head gasket, though not actually blown. And before anyone asks, it was new and annealed before fitting in case it was old stock. And the head sequentially tightened with a torque wrench to Triumph specs.
Can anyone enlighten me as to how proud the lining tops should be above the gasket face on the cylinders? There seems to be very little "nip" on the gasket before the liners bottom (or should that be top? ;)) in the head recess.
Careful measurement leaves a gap of 0.013in when the head is placed on the barrels and the solid gasket at 0.039in is only 0.026in thicker than the gap available.
Is that sufficient for a satisfactory seal?
Checking faces as far as possible with an engineer's straight edge reveals no distortion problems.
Incidentally, I was surprised to find the thickness of the old gasket to be exactly the same as the new. Also, I must admit that I had not tried re-tightening the head.
Jim.

3
Autojumble / TA gearbox end cover wanted
« on: September 24, 2013, 08:53:43 AM »
Following advice from "Rex", I am looking for a 1964-on Triumph TA (unit) 3 ball(?) gearbox end cover for my 1959 5TA. Even just advice where to start looking would be helpful!
twolitre.

4
British Bikes / 5TA Clutch cables.
« on: September 22, 2013, 04:58:07 PM »
My Triumph 5TA "eats" clutch cables.
In 7 years it has pulled the nipple off one or other end of its clutch cable at least four times. Always replaced with a new cable.
I have been told the clutch is "too heavy".
The only response I can make to that is that if I lower the clutch spring tension any more the clutch slips. I can also point out that I can easily operate the clutch lever with 2 fingers and the cable tension is less than often required for front wheel braking in normal riding, and the front brake cable has never failed even once in that period. Is this a Triumph 5TA Malady. If so what is the cure?
I have already replaced the clutch springs with different poundage (recommended) ones from Len Craig.
I find it difficult accept that the tension on the cable is too much, particularly as the front brake lever needs a much harder pull in normal use.
Any comments or help gratefully received.
I perhaps should also mention that replacement cables have been from different suppliers and have always been well lubricated and fitted with minimum bends..
Jim.

5
Some time ago I bought an alternator rectifier/regulator to convert my 1959 positive earth Speed Twin from 6 to 12 volts.
Of course that model already has an alternator. The regulator (also called "Power Module) instructions say "connect the green/yellow and green/black wires together and connect to one yellow wire on the regulator and the White/Green wire to the the other yellow wire on the regulator". The problem is that the wires from my Lucas regulator are light green, dark green and green and yellow, not the colours mentioned.

Can anyone advise which two wires I should join together?
Also, if I take the regulator black lead to earth and reverse the battery connections (using a 12 volt battery) will I have a functioning negative earth system?
Of course I am aware of bulb changes necessary etc. etc.

Thanks again for any possible advice.

Jim. 

6
The Classic Biker Bar / Hireing a Motorbike/scooter in Madeira.
« on: November 06, 2012, 01:57:34 PM »
I have decided to have a convalescent holiday (after my bike crash) and rather fancy Madeira. The scenery looks stunning, but since I cannot yet walk too far, some kind of transport is desireable.
Any advice about hiring a two wheeler (or perhaps even four wheels) welcome.
I realise that Madeira is Portuguese and will probably have regulations similar to Portugal, but s there anything I need to be careful about?
Jim

7
British Bikes / Speed Twin Advice.
« on: October 31, 2012, 11:36:28 AM »
I thought about calling this "sob story", but I am not seeking pity - just advice.
I have had a rather unfortunate year, with three spells in Hospital. Including one spell resulting from writing off a bike (well a 500cc Piaggio scooter really) and also almost myself. CCTV evidence places the blame squarely on the shoulders of the other (car) driver.
  Feeling O.K. now, but sadly lacking in "go". I have a 5T Triumph Speed Twin in my garage which unfortunately gave every indication of siezing up just before my first hospitalisation. Though it will turn over but not start now.
  I think I have to accept that after a lifetime of doing ALL needed repairs to my cars and motorbikes, I am unlikely to be able to tackle the Speed Twin engine.
  Can anyone recommend a reliable person or firm which would undertake the engine overhaul for me without insisting on an arm and a leg?
Obviously location might be also important. The bike is in Chesterfield, Derbyshire, U.K.

Jim.

8
The Classic Biker Bar / Telling Time.
« on: June 21, 2012, 03:16:02 PM »
I had a modern JAP bike (Kawasaki W 650) until I bought my Triumph Speed Twin and discovered I much preferred riding the Triumph. But the Kawasaki did have one thing I miss on longer rides. And that was a built in clock.
I have searched the internet and trawled round shops looking for a timepiece which I might fix on my Triumph. But without success.
Does anyone know where I might find something suitable?
Jim.

9
British Bikes / After market oil filter.
« on: April 15, 2012, 03:25:11 PM »
A previous owner of my 1954 Triumph 5T Speed Twin had an oil filter added.
The filter accepts oil discharged from the pressure relief valve and returns it the timing gear case.
The filter fitted is a Coopers Fiamm Z107. which I believe is a FULL FLOW filter fitted to some Renaults.
The system, as fitted, is a by pass situation. In which a BY PASS filter with less flow restriction would normally be used.
My concern is that a FULL FLOW filter will reduce the oil flow to the timing gears detrimentally.
Has anyone who has experience of fitting after market filters any comments on whether my concern is justified?
Jim.

10
British Bikes / Triumph 5T cylinder barrel(s)
« on: February 28, 2012, 01:30:33 PM »
Following up on my posting "A barrel of laughs.....not) - does anyone have a cylinder barrel in reasonable condition for sale?
Jim.

11
British Bikes / Posted in the wrong place!
« on: February 27, 2012, 01:33:00 PM »
I just realised that I posted a technical question in "Wanted Bikes" by error instead of here. Please view it to see if you may help.
Jim.

12
Wanted Bikes / Barrel full of laughs......not!
« on: February 27, 2012, 12:55:12 PM »
Investigating a sudden rise in oil consumption and smoke on my 1956 Triumph 5T Speed Twin I discovered both cylinders had massive ruts (not typical scores) in both pots. Obviously made by the gudgeon pin circlips if badly fitted (or the gudgeon pins if the circlips were not fitted).
I have two problems. I have no idea who rebuilt the engine when it was bored to +.040", but I think they must have used something like Araldite as gasket sealant! I cannot shift the barrels. I have tried driving the unit upwards utilising the very slight lip available in places, screwing in the head studs and judicially tapping them forward and sideways and also the same with a suitable piece of wood in the bores. All to no avail. Of course I dare not clout the fins.
Any sensible suggestions please?
The second problem - it is obvious that when/if I remove the barrels I will need to either get the barrels sleeved or replaced. Can anyone help me there?
Hopeful Jim.

By the way I intended taking the bike on a tour of Northern Spain in May and still hope so to do. However, I do have a reserve in the form of the reliable 5TA Speed Twin in my Avatar.

13
The Classic Biker Bar / Classic bike and Spain.
« on: January 24, 2012, 04:25:03 PM »
I am hoping to visit Spain and Southern France on one of my Classic Triumph Speed twins. 5T or 5TA - not decided yet.
Has anyone any useful tips on any aspect to offer?
I expect to cover between 1500 and 2000 miles from home and back.
On past bike performance I am not anticipating trouble. But......................................?
Jim.
 

14
The Classic Biker Bar / Christmas
« on: December 14, 2011, 05:25:46 PM »
Just thought it was time to shout -

MERRY CHRISTMAS EVERYONE]



AND A HAPPY NEW YEAR!

Jim.

15
British Bikes / Tinning bushes etc.
« on: October 31, 2010, 01:18:41 PM »
After offering a suggestion about tinning a bush (in the next post) I thought the following might be interesting.
I was alarmed to find that I could rock the cam in the distributor of my Triumph 5TA to produce a points gap variation of over 10 thou. Even though the bike started and ran well.
I expected the drive shaft bushes to be worn; but not so! It turned out to be that the sleeve of the cam was wobbling/rocking on the spigot of the main shaft. Searching on the web etc. produced no source of replacement parts. PROBLEM!
I decided I had nothing to lose by trying the tinning remedy. I tinned the spigot with a coating of Tinmans solder (I thought Plumbers solder too soft) and eased the coating in the lathe with fine emery paper to get a nice sliding fit
Result? I now have less than 2 thou rock, a more stable tickover, but no improvement in performance. Or so I thought until I found out I had gained almost 20 miles per gallon!
Only time will tell how durable the remedy is, though I think as long as I remember to put couple of drops of oil in the top of the cam every points check it will probably see me out. 700 miles around Wales last week has produced no change.
In any case, if necessary it is not a major job to repeat the excercise.
Jim.

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