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First go at a Trial - Robin Gooders - 30-09-2017
Hi, a question for any trials competitors out there. I plan to have a go at a 750mc A7 trial next month. I've never competed before, so I'm just hoping to have some fun and learn something!
I've had a look at the regs, and there is one technical requirement that I need some advice on. Could someone please help me on the requirement for extra or "double" throttle return springs. My special is basically mechanically a 1927 chummy with original up-draft zenith bronze carb and original chummy throttle linkage. There is already the standard return spring on the linkage. Do I just need to add an extension return spring onto the carb throttle arm (SU style) to conform? (Making two springs in total) or do both springs need to be actually on the carb itself? Thanks for any advice
Robin
RE: First go at a Trial - Derek Sheldon - 30-09-2017
I. Sludge that the second spring should also be capAble to close down the cRb
RE: First go at a Trial - David Cochrane - 30-09-2017
You need to have an extension spring attached to the lever connected to the butterfly spindle. This is in case the linkage comes apart and the standard return spring on the cross-shaft would no longer be operating on the carb.
RE: First go at a Trial - Shuttle - 30-09-2017
Just fit a second spring somewhere, shouldn't be difficult.
I used to have a go at PCTs (not in a 7) and found them a great bunch of folks. Got too confident and started to believe my car was unbreakable - bust a diff! Don't spin one wheel, when one starts to slip, lift off - you won't get any further.
RE: First go at a Trial - Robin Gooders - 01-10-2017
Thank you everyone for the quick replies. David, that's exactly what I needed to know. Much appreciated.
RE: First go at a Trial - Douglas Alderson - 01-10-2017
Robin where is the next trial, might go and have a look.
RE: First go at a Trial - Nick Salmon - 01-10-2017
To those thinking of having a go - do it!
To those coming along to have a go for the first time - you'll be made very welcome and you should love it.
Next 750MC Trial is on Sunday 29th October at Tulleys Farm in West Sussex. Details here: http://www.750mc.co.uk/trials/production-trials/events.htm
If you want to get a feel for what goes on have a look here: http://www.750mc.co.uk/trials/production-trials.htm
RE: First go at a Trial - Robin Gooders - 01-10-2017
(01-10-2017, 09:20 AM)Douglas Alderson Wrote: Robin where is the next trial, might go and have a look.
Douglas, I was planning to do the Tulley's farm trial that Nick mentions below.
RE: First go at a Trial - Timothy P - 03-10-2017
Brilliant Robin, hope you have a great day.
Can anyone confirm whether spectators are welcome? Dad and I would probably attend with our sevens if this is OK.
If spectators are welcome, is it OK to post the event in the calendar?
Dad did MCC trials in his youth, and we really want to get out on the hills again in some way.
It seems like these trials specifically for Austin Sevens including standard cars may be just the ticket.
Thanks
RE: First go at a Trial - Nick Salmon - 03-10-2017
Spectators are absolutely welcome. And if anyone is willing to help out on the day it could be hugely appreciated by the organisers. Contact Mike Stone as detailed below.
Trials leaflet.jpg (Size: 229.01 KB / Downloads: 393)