405 diesel stop solenoid

David Humphrey · Post by **David Humphrey** » 21 Nov 2004, 00:26

My 405 has decided to keep running after switching off.Took solenoid off and checked it by putting on a battery and it operates.Can only assume it is the rubber seal on the plunger not sealing ? Any other ideas please

JohnD · Post by **JohnD** » 21 Nov 2004, 00:36

Or the wiring to the terminal?

David Humphrey · Post by **David Humphrey** » 21 Nov 2004, 00:44

I checked the supply with a volt meter.It has power when ignition on and none when switched off?

beezer · Post by **beezer** » 21 Nov 2004, 00:57

Then plunger it likely is.

David Humphrey · Post by **David Humphrey** » 21 Nov 2004, 02:13

Is it possible to get a new rubber or do you have to get the whole bit ?

beezer · Post by **beezer** » 21 Nov 2004, 03:56

I have never had to renew so I am afraid I can't say. I do know of people who have renewed the whole solenoid and I have seen many injector pumps at scrapyards with the solenoid removed. Have you checked the chamber where the plunger seats? Could be dirt in there.