Stuck Carb Float Valve

Went to go for a run in the car and on start up the idle was very erratic changing RPM from 1000 to 400 and back again every few seconds. After lifting the bonnet for a bit of expert analysis I noticed petrol pissing all over the floor from the SU carb overflow pipe. "Well that's not right", I thought to myself.

I decided it was time to get a few new parts in for various small issues and of course this latest one, so I ordered from Rimmer Bros, carb float valve, carb needles, floats, gaskets, water pump and gaskets, intake/exhaust gasket, brake pads and fitting pins/shims.

Anyway, getting back to the minor fuel leak which has led to my garage knocking me out every time I walk in there. I fitted the new float valves and floats and hey presto the fuel leak has stopped and the idle is now back to normal.

I'm still getting the whistle which I was sure was the water pump but now I'm not so sure so I will change it anyway and then probably have to change something else.  I have a feeling its going to end up being an air leak but I can't find it, hence the additional intake/exhaust gasket.

Will update when I make the changes.

Time for an Update

Well, it's been a while since my last post for one reason or another. So what's been happening?

Firstly, I decided to make myself a book as a bit of a birthday present to myself. It was made through a company called Blurb and it is basically a slightly better written version of what has gone into the blog. To say I was happy with the result was an understatement. They did a really nice job and it is a nice thing to keep in the future. I have no intention of letting the real thing out of my hands but it is easier to handle.

 

 

The car got through its MOT again which was nice. I was a little nervous as I hadn't done anything to sort out my slightly binding brakes, which were mentioned at the last MOT but I didn't get an advisory. This time I did get an advisory for the brakes but it still sailed through. I really must get them sorted before the next time....

After changing the alternator and seeming to improve the whistling sound I was getting it appears to be back again. I have now managed to trace the noise (at least I think I have as I thought I had found it last time) to the water pump. It is intermittent but I had my stethoscope on it at the right time the other day and was clearly coming from that area. New parts to be ordered soon but I have some holiday time first so I'm aiming to get it looked at in September.

Meanwhile, I am just driving it when I can and enjoying sweating a lot in "The Furnace" as I now affectionately call the old girl.

New Alternator

My Lucas alternator has definitely been sounding a little off recently and figured maybe the bearings were getting to the end of their life and was the reason I had been having an annoying whistling sound, so I ordered up a replacement from James Paddock.

It arrived next day which was good as I only went for the standard free delivery and came complete with the fan and pulley.

My Ragdoll cat was also very delighted with the new arrival

 I thought installing the thing would be very straight forward and only take a few minutes. Remebering to disconnect the battery before carrying out any electrical work I set about removing the wiring connector from the rear. Its held in place with a retaining clip and once removed I thought it would pull straight off but I couldn't get it to budge.

I removed the cap to see if there was any reason this thing wouldnt easily pull off

In the end I posted on Club Triumph forum for some advice as I had visions of broken plastic coming. It was confirmed it should just pull off so I gave it some serious pulling and eventually it did come off.

The offending article eventually pulled free

Once the old one was removed it was a simple case of fitting the new one a making sure the alignment between all the pulleys was maintained with the aid of the spacers.

Old one finally off

Everything was retensioned allowing around 3/4" bounce in the fan belt at the half way point between the alternator pulley and water pump pulley.

New one on

Connector back in place

The car fired up again no problem and the alternator is definitely a little quieter. The question is whether this was the cause of the whistling noise I have been trying to diagnose for a while. It normally sounds worse when driving so I will report back on that the next time I get out for a drive.