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johny

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Posts posted by johny

  1. The gear levers seem to be hard to come by but do come up on ebay from time to time but obviously arent cheap.

    Why not try some experimenting with the clutch before replacing everything. You can also check under the master cylinder rubber covers for a leak and then carefully watch the level in the reservoir while an assistant presses the pedal (if it increases at all then the mc has a problem)..... 

  2. A clutch thats not disengaging fully is certainly something which could produce symptoms like yours although I would expect it to give problems in all gears especially 1st when stationary. Theyre not adjustable but obviously you should check the clutch reservoir fluid level if you havent already done that and also try pumping the clutch pedal a few times quickly before selecting or disengaging a gear. Its possible you have a seal in the system thats not doing its job properly (getting worse with use/temperature) and by pumping you can temporarily get sufficient pressure for the clutch to separate enough to allow the gear change. Let us know if this works and if not we'll have a think as to what else it could be.....

  3. theres two in each mechanical pump, both of which have to seal well and they come in the repair kits but are a bit fiddly to change. You can test them individually by removing the pump filter cover then blowing back through the outlet pipe and next sucking on the inlet. In neither case should air flow but I bet in yours as in mine it will so the easiest option for me was a replacement pump which has worked perfectly although Ive seen recent posts complaining that some produce too much pressure.....

  4. That sounds perfectly normal although the drain back on the engine side should only reach the same point in the fuel line as the level in the tank. It happens because the carb float chamber has a vent to atmosphere through the air filter which allows air out when filling the chamber plus overflow if the float valve doesnt close properly.  I dont think a tap in the line is necessary as if the non return valves in the fuel pump are good it should quickly refill the carbs but its true a higher level in the tank will help....

  5. 1 hour ago, Badwolf said:

    So, do I, don't I???  Do I just leave the spring to settle, for the mileage I do, is it worth it. But, while the spring is out should I do it??!! If I need to replace damaged parts should I order one and if so what size. Is the world flat or the moon made of green cheese (those last two are not serious questions, its bank holiday, the tv is off to avoid the news and the sherry is open!)

    Is there anyone else out there who has changed their leaf spring, did you use a lowering block, did it work/improve things or cause problems of any kind. Do I really want the extra agro... pass the bottle please.

    I think this thread a little while ago was about a very similar problem: 'Rear swing spring conversion dangerous due to camber?'

  6. 2 hours ago, Adrian said:

    Hi all

    Prior to the carb issue I put the timing light on cylinder 1 and got an uneven 'flash'. It's perhaps not much but wondered if it pointed to and issue with the HT leads or distributor?

    Not much in the way of sideways movement on the shaft. No carbon / burning on the cap - looks almost new.

    Or could it be associated with the mixture being too rich.

    Adrian

    PS also wondered about converting to electronic ignition - what would you do - new distributor or just but a conversion kit and if so which one?

    I think the strobe should light up at same timing mark on number 4 as on 1 then. If the dizzy shaft doesnt have much play I cant see anything else wrong with it would explain the erratic idle sparking (that doesnt discount the points, cap and leads etc) so dont think you should replace it or get electronic ignition yet. I would sort this issue out first before introducing more variables. Fuel mixture will of course cause poor running but the spark should still be pretty regular because the crank and flywheel have a lot of inertia that help to smooth out any misfires.

  7. Looks like the end of the saga is in sight but I dont think I'll be going down the same route anytime soon! Going back to the question of the tube I think you did the right thing sealing it as Im not sure the gearlever rod has o-rings as was suggested. It looks like it just runs through holes in the ends of the main casing with no form of sealing.....

  8. 18 minutes ago, clive said:

    Best to be pragmatic about this stuff. For most people the usual 20/50 will work fine but doesn't like a hard life. Change it annually or 3000 miles and it won't hurt the engine.

    Agree especially as our oils are usually subjected to much more contamination from fuel and combustion products than a modern engine and which no filter or oil, no matter how good they are, will protect against.  

  9. 9 hours ago, Pete Lewis said:

    I would think a modern 5-30 being lets say skinny would flow but with our old clearances would escape a bit quicker than we need 

    Just  a thought,   triumph had a spec so if we stick close to it it does what it says on the tin,  after all its done use proud for  40- 50 years 

    Pete

    yes apparently its the smoothness of the surface finishes that comes into it as well. Now that these are machined smoother compared with the old days surfaces can run closer together without the microscopic peaks coming into contact so clearances can be smaller and oil films thinner. Rougher surfaces have to be held further apart so a thicker oil film is needed and this is achieved by using a higher viscosity oil....

  10. If anyone is interested theres what I believe to be an 1850 3 rail gearbox (unfortunately non OD) for sale used on ebay in Bideford. Its listed as a 'Triumph Herald gearbox' and has failed to sell at 20 pounds previously but is collection only. I think its is the same as a late GT6 type and by changing the bell housing can be used directly in any GT6 or Vitesse 2L giving the benefits (and this has to be confirmed) of the later quieter gears and larger synchro rings. Im nothing to do with the seller but it might do someone else a turn as unfortunately its too far for me......

  11. you need a strobe to check the dizzy operation so that, with the vacuum pipe disconnected, when reving you should see the timing advance from the action of the weights (I think the WSM even has the correct advance at various revs). Also as Pete says a partially working fuel pump can produce fuel starvation when theres high demand and the only way Ive found of testing its two non return valves is by reversing blowing through each of them individually.....

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