Bongo Fury

I am sorting the Waspies AFT it has always been slow to rise.
Today I removed the motors to swap them out.
I have a pair of aft motors passed on as spares from the previous owner and I have cleaned and relubed these then bench ran them. Unloaded one shows 2.14A and the other 3.35 while the two that came fitted to the van both draw 2.20A unloaded.
I expected to find an issue with the higher draw motor so stripped it down to recheck but there was nothing to find. Reassembled it came back with 3.35 again.
I have fitted this to the van with one of the unserviced originals curious to see what would happen. The roof rises a little bit faster at 34 secs to lockout previous best was around 40secs.
So whats going on are the 2.2s low or has 3.35 got a problem or am I doing it all wrong?

I've only ever measured them under load so no idea what speed/current they achieve off load. The current will normally be quite a bit more obviously under load.
As to why the difference main feature will be speed, if the motor speed is higher under no-load then the current will reduce as the back emf generated in the coils is dependent on the speed that the magnetic field changes and hence the faster speed will generate more back emf and hence reduce the current.
Have you tried to clean out the gearbox at all, when I did mine they gearbox seemed quite easy to turn so I didn't go inside but if there are problems in there that might be the cause of the difference ?

Thanks. Re the gearboxes I did flush the spare motors and relube them I found no problems there even checked with USB camera but all looked good.Would you suggest I run a matching pair i.e. the 2A ones providing they are mechanically OK. I am thinking yes?
Do you have a figure for the motors underload?

Yes a "matched" pair would be a good idea, there might be differences in the motors that haven't been identified over the years.
I did measure one a good few years back but I didn't for some reason make a note at least one I can find! I think I was having problems getting my clamp meter around a single wire under the roof as having a conversion I can't get at the control module !