S2A Drives well for 10-15 min then struggles when warm

scott3933 said:

He said 2.5 Petrol above so I was just assuming straight 17H out of an early 90/110 and kept in the same form. Although yeah more clarification needed, things could've changed, it could be a mistake and actually it's just a standard 2.25!

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Apologies- yes it’s the standard 2.25 petrol

Right, ignore what I've said about the Weber carb then! Unless you happen to have one...

An aftermarket capillary temp gauge is handy thing to have, My 2a did not have one as standard either.

It does sound like heat is the issue, vapour lock?

The weber carb kit comes with an inline fuel filter which sits directly over the manifold. If you have one I'd remove it even just fir safety reasons.

1. Check fuel tank isn't rotting from inside out, big chunks can clog up the carb. Mine would do exactly as you've described. When I turned it off, the fuel would return drawing the lumps of crust away from the carb and it would then run well for a bit.
2. Clean the carb
3. Make sure there's no air leak around the carb.
4. The heat shield around the manifold was missing on mine, I think it helps direct heat away from the carb.
5. As suggested replace the ignition coil, leads and plugs, points.


Let us know how you get on.

Parts ordered! Will update everyone once they get here

mtripoli said:

Yes still has a fan and cowl. I purchased it from Ike at pangolin 4x4 so I know it’s been driven/cared for but it has been sitting for the last year or two I believe.

I’ll start working down the list

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That's a name from the past! Rovers North forum?