Hi all, well its taken a while but I a now the pleased owner of YHA 584S thanks to Phil the previous owner.
Triumph Dolomite 1850HL by
Robert Seymour, on Flickr
I had some trouble driving though and ended up getting recovery back home.
There were two seperate issues, first after I filled up with fuel (to the brim, which may have bought up some crud from the bottom of the tank) and then it started running poorly from then on. It was stuttering under acceleration and could not get above an indicated 30mph in 4th on the A46!
I pulled over to trouble shoot and found a few problems.
- Fuel filler breather pipe was degraded so when I filled up, it spilled some petrol into the boot but not related to the poor running as far as I can tell
- Breather hose from Vacuum advance to Carb was degraded and the rubber elbow disintegrated, I did a temporary fix with a section of the windscreen wash pipe
- Fuel filter had some 'bits' in it, swapped out with another new one that came with the car but under running it would only have a dribble of fuel in it, not filling up the filter when in use
- It starts pretty much on the button first time, every time and idles very well, little odd missfire but nice
- When revving in neutral its quite good, gets a bit lumpy but seemly OK
- Under load its very lumpy and splutters, so can drive on the flat ish but lumpy and would not drive up the recovery lorry bed at an angle
- Seem to be getting fuel into the carbs as both float chambers were full
So initial thoughts could be sticky vacuum advance? (dizzy weights move freely), could be blocked carbs in the jet possibly? as there was not much fuel in the carb pistons on the air box side, even with choke on
Other problem was a seized rear right drum, seemed to come on after I pulled over as it was not at all warm to the touch and the pads were scored lightly but not as if I had been driving it for 10min down the road, no pad dust inside really either so I think just a seized piston.
I have sent over the renewal for the club membership as mine ran out in March I think. Is there anyone local to Faringdon (Swindon/Oxford) who could help me trouble shoot at all please?
Cheers, Rob
Hunting for an 1850HL...