Triumphrat

snatchpiece · 07-09-2008, 04:26 PM

I've removed the bathtub from my 59 5TA and confirmed my suspicions that it was hiding a multitude of sins. A little bit of rewiring is caled for. Also there was a clear plastic tube of which one end was lying on top of the oil tank right next to small tube projecting out of the filler neck, I assume this should have been connected. It's the other end of this plastic tube that concerns me most for it was connected to a clip on the number plate fixing inside the bathtub, I imagine (rightly or wrongly) that it should really be lubricating the rear chain and not the road underneath the rear of the bike. Does anyone know the correct route for this pipe?

Also, should I have disconnected the battery now I've removed the rear light?

jimballard · 07-09-2008, 09:23 PM

"Way back when" I owned a '66 TR6R, it had a hose from the filler neck of the oil tank that went to a clip on the chainguard to do just that...lube the chain. Inside the neck was a small valve tapped into the oil return pipe, with a screw adjustment to regulate the oil flow; does yours have this? It's possible that the earlier ones didn't have it and it was discovered that too much oil was flowing on the chain, the road, the rear tire, etc. Most of us used to just shut the valve off as achieving the proper adjustment was pretty hard (the faster you go, the more oil is returned to the tank,,,you get the picture), and using a good chain lube was always a better idea, at least in the thinking of that day.

Your history lesson for today...brought to you by the "village idiot": Jim

mike T150 · 07-10-2008, 08:34 AM

As Jim B rightly pointed out this is indeed a lube line for the drive chain. There should be a control valve to regulate oil flow near the oil tank fill point. Shut it off and use a good quality chain lube, it's almost impossible to get the oil flow correct most of the time you end up with oil all over the rear tyre. There is also a breather pipe coming out of the oil tank, this should be unrestricted.

Mike T

snatchpiece · 07-11-2008, 04:10 AM

Quote:

Originally Posted by jimballard

"Way back when" I owned a '66 TR6R, it had a hose from the filler neck of the oil tank that went to a clip on the chainguard

Mine doesn't appear to have a clip on the chainguard, whereabouts was yours? looking at it I guess I need to route it to the front of the chainguard where the upper chain is exposed?

jimballard · 07-11-2008, 02:16 PM

Whew!! Now you're asking me to think back 39 years!! I believe it was near the rear of the chainguard dropping (no pun intended) the oil on the bottom run of the chain just before it went around the rear sprocket. You always want to oil the bottom (inside) run of the chain as centrifugal force will push the lube into the chain, as well as lubing the teeth of the sprocket.

From the failing mental archives of the "village idiot"L: Jim

snatchpiece · 07-11-2008, 04:36 PM

Thanks for the reply Jim, I'll remember the logic of where to oil the chain, that's most useful. Sorry to tax your brain so, but it's all in a good cause isn't it.

DAGAD · 07-11-2008, 04:54 PM

Ok Guys, here we go..................... on a '59 5TA, there is a vent pipe coming from the oil tank filler neck. The cast alluminium cap on the tank does not have a vent but the spigot tube on the side is the vent. There should be a 'flexible' pipe from this to the clip on the number plate to vent the oil tank. The engine breather goes to atmosphere under the gearbox with a short pipe, it is sensible to extend this and connect it with a tee to the vent pipe exiting at the rear number plate........ gets it ALL away from the rear tyre.
Roy.

snatchpiece · 07-14-2008, 04:07 AM

Thanks for the reply Roy, it appears mine is as it should be. I haven't noticed the breather under the gearbox yet but will be having a closer look tonight.