Volvo EC15B cutting out

[Muz]

RIGHT ! .. back on my high horse here is the unit stripped out with most of the rubber removed .. took a while

Img_0222.jpg

Ive highlighted the important data for you guys ........... Made by Mitsubishi part no 16A11 - 02100, a quick google crosses this number to "16A11-14001" listing as Engine Stop Timer for Mitsubishi .. kinda stands to reason as the original engine in an EC 15B is a Mitsubishi L3e

476-Mitsubishi_L3E.jpg

The cheapest I found a cross reference was 149 Euros or £127 also found this one on Ebay for 160 Euros which is about £137

http://www.ebay.de/itm/NEUES-STEUERG...-/221544866835

Honestly ... I'm calling Volvo out on this one there cant be anymore than £3 worth yes 3 POUNDS worth of components on that tiny board, no special chips, no fancy electronics, just basic crap you could buy out of maplin for about 3 quid . And how much do VOLVO want for this piece of elektrickery ? £230 quid plus VAT and postage so all up that would be just shy of £300.00 ........ that my friends is a right royal RIP OFF ! Volvo you should be ashamed of yourselves !

To my memory, every EC15 I've ever had has had this part fail ... Any half decent manufacturer would at least accept an inherent defect in a component and sell it for a reasonable cost instead of ripping the poor customer off

[Nobody]

Hehehe! Any fix is a good fix gonna remember this trick!

[Muz]

EC 15 gets lobotomised

Turns out ... that the fault on this occasion isnt a broken wire but most likely a dry joint or similar on the small PCB inside the unit. I secured it to the machines and connected it up and discovered this :........

So then I Just disconnected the two multiblocks to the unit, and guess what ? the machine ran perfectly !!

The reason is that, the two sensors it is fed from are the two ( water and oil) that I had already disconnected, so without their grounding, and whatever fault is in the unit its self, there is no signal that gets sent to the fuel cut off solenoid any more that shuts the machine down. The key still operates the start stop as normal ... bit of a sideways result, but saves spending another £250 for a new unit for now !!

[Muz]

Well, another day, and another EC15 hiccup. Started looking at all the usual suspects, oil pressure switch, and water temperature thermistor as usual, customers hadn't been complaining as when the machine cuts out, they just restart it and its fine for the next good while. However it had cut out on me in the yard a couple of times so I thought I'd better investigate.

Suddenly I remembered about a little ECU mounted under the operators seat, I'd had trouble with these in the past.

IMG_0846.jpg

This wee bugger gets an internal fault, or broken wires once they are inside the case, and theres not a lot you can do about it because all the components are resin bonded into the black plastic case

Its mounted on the back side of a panel that contains all the relays and main 50 amp fuses

Img_0841.jpgImg_0842.jpg

The wires feeding it are none too clever and all twisted round each other ,... its a bit of a mess ... but if you mess with the wires while the engine is running, you are sure to get it to cut out, to be honest ... even before you strip anything out, just put your hand under the seat and give some wires a push, and if the machine shuts off, you know you are in the right place !

Img_0843.jpg Here she be .... so .... could we fix this one this time ?

I soaked all the back with some cellulose thinners, a bit of a risky move in case any components get damaged, and gradually I started picking at the rubber

IMG_0848.jpgIMG_0849.jpg

In reality its almost impossible to do without damaging something .. but before I got to this stage ... I made an interesting discovery