Speedo mis reading.. again...

[pjac67]

Worked fine for a few months after recon/recalibration by ETB instruments - now it has started to under read ie shows 30 when doing 50+ etc Any ideas as to what could cause this before I send back to ETB?
Thanks in advance for any help.

[Bluebottle]

Similar thread running here;

http://www.pistonheads.com/gassing/topic.asp?h=0&t=420556&hw=+%2Bspeedo+%2Bfault 

[scorcher]

Probably the innards gone rusty and stiff from being parked up so much

[pjac67]

Thanks for the replies guys - see you on Sunday Scorcher?