I'm wondering whether this could be Snowdrop's problem.
Possibly, the best way to check a pump is to get a pressure gauge on it and see if it is delivering (and holding well, rather than leaking back)
A little side note, which may be interest...
When I went to Scotland at the end of December, the BB had drop-offs in power due to insufficient fuel reaching the carb and I had to do a quick road-side repair before I got to Newry. The car had a brand new fuel filter (
small in-line type) fitted on Christmas Day, so that filter had done less than 100 miles. I put it down to clogging, as it was quite full of sediment. I replaced the small filter with the previous
large in-line filter, that was quite dirty too but was to hand as I hadn't thrown it out of the car and everything was back to normal. Later the same day, it packed-up completely in Glasgow and the pump wasn't delivering anything through to the carb, even with the filter omitted. Got going again only because I borrowed the pump off the white car which was only 5 miles away at the time.
Anyway prior to this pump failure, the pump would behave like so:
Therefore, if needed (say if I left the car standing for a few days), I'd need to prime the system first without the filter, then reconnect it with no further problems until the float chamber went dry again.
This behaviour was first noticed when the new carb was fitted (and the decision to add an in-line filter made) back in September when in Needham Market.
With the pump pinched from Abby, under any of the 4 circumstances described above, the fuel comes through no problem. That pump is a very good sucker.
My conclusion it that the old pump was a marginal sucker when running at cranking speeds and this was probably due to crud decreasing the effectiveness of the one-way valves. The issue wasn't noticeable at idle as the delivery rate had just edged over the threshold.
Where do the repair kits come from?
Turkey, I think ;D
Well I've been comparing notes with Marcus, who went to a Triumph specialist in Chester and got a kit with slightly different contents, but without the tea strainer part. (ref 465/6 @ £10).
I went to Lloyd Agricultural in Carlisle (well it was only about 1/2 mile from the parents) for mine. It was a
Sparex S.40567, which is the same kit as
Vapormatic VPD3201 (both aftermarket tractor parts ooh-ahh)
So pop down your local tractor shop or just go on Fleabay, posted for £10.45
HERE (they're in Chelmsford if you want to pop in)
Now, for the 64 thousand Pound question....are they readily available and how much?
John, you may also have a local tractor place that does Sparex parts.