Before you start replacing bits, have you checked that it is not an electrical problem. Some types of battery isolating switches degrade and begin to restrict the current intermittently, either at high or low temperature. It is worth shorting this switch out and seeing whether the problem persists. It could also be the electrical connection in the solenoid, or an earthing connection dropping the volts so that the current is not sufficient for proper operation.
David --- In [email protected], "gwade13942" <geoffw...@...> wrote: > > I have a problem starting my 4 year old Isuzu 42 (HMI) when it's hot. The > solenoid often fails to engage the pinion, or only makes a poor connection, > giving a chattering noise. The problem does not occur on a cold engine. The > engine has around 3000 hours on the clock, and is started at least once every > day (liveaboard). > I've experience with motor vehicles and am sure it's the solenoid sticking > but am unwilling to remove the unit to effect a repair without having a > replacement to hand. > My question is - does anyone out there know which equivalent Isuzu truck > would have a compatible unit? I can't do without the arm and leg I'd have to > sell to pay for one from HMI, but ebay has several different designs for > Isuzu vehicles for less than £100. > Any ideas? >
