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+--- Thread: Starting hesitancy 1930 Chummy (/showthread.php?tid=9216)
Starting hesitancy 1930 Chummy - PeterN - 07-03-2024
Starting from cold is a real chore for my Seven. the process is as follows with full choke, full advance, and throttle open.
Churn churn churn, nothing. Repeated 4 or 5 times until I get churn churn cough, then churn churn cough couch, then churn brmm die. Followed by churn brmm brmm die, followed by churn and away we go but needing careful throttle management as the revs climb and fall of their own free will.
Once started the car is really responsive and sprightly and settles down to a reasonable idling tickover. The timing is, I believe correct as the car climbs hills nicely . The mixture seems ok but I need to verify that. The plugs look to be an acceptable colour.
The carburettor is a 26VA, with which I've little experience or real knowledge.
Any thoughts will be gratefully read and acted on where appropriate
RE: Starting hesitancy 1930 Chummy - Howard Wright - 07-03-2024
Hi Peter
Do you mean ‘full retard’?
I need to flood the carb to ensure good starting on my 1930 RK.
Cheers
Howard
RE: Starting hesitancy 1930 Chummy - Colin Wilks - 07-03-2024
My regime is full choke, full retard, don't touch the throttle.
RE: Starting hesitancy 1930 Chummy - Mike Costigan - 07-03-2024
I have owned many Sevens with the updraft carb; every one has needed manual flooding before first starting.
RE: Starting hesitancy 1930 Chummy - Howard Wright - 07-03-2024
Apparently this is how it should be done.
The Handbook is in the A7CA archive.
Cheers
Howard
IMG_0975.png (Size: 527.24 KB / Downloads: 338)
RE: Starting hesitancy 1930 Chummy - PeterN - 07-03-2024
Thank you each, I'll check over each of the points raised. I hadn't realised that having to flood the carb is a semi normal requirement. My whole starting process does indicate a ready lack of fuel to start and run on
RE: Starting hesitancy 1930 Chummy - Colin Bromley - 07-03-2024
If I have left mine for a while, especially if it is cold, behaves as you describe, even if I flood the carb. I have found that gently warming the manifold with a heat gun, makes it start instantly. I assume the fuel condenses in the clod manifold.
RE: Starting hesitancy 1930 Chummy - David Cochrane - 07-03-2024
Interesting comments, but many of them irrelevant, as Peter has a 26VA side-draught carb.
RE: Starting hesitancy 1930 Chummy - Ruairidh Dunford - 07-03-2024
Do you/are you able to, prime the carb, before your normal cold start up?
RE: Starting hesitancy 1930 Chummy - "Slack Alice" Simon - 08-03-2024
Check that the choke is really closed.
I cannot get mine to be either fully closed or fully open - there is not quite enough movement on the pull handle.
But if not fully closed the engine is reluctant to fire up quickly.
So it is adjusted so it isn't quite clear of the carb intake when open.
I must get round to sorting this out ......