Mason alarm going off (part 2)

[campergeek]

Thanks Ady - that's interesting what you say about the fan switch, as I wonder if this relates to lumpy starting issues I've had when cold. I'm not sure rad/waterpump/stat is ok or not, but would prefer not to have to replace them unless I'm sure there's an issue.

Just not convinced ditching the mason will do anything other than stop my temp gauge rising high - I got it as I was worried how warm it was getting through the driver's seat and wanted a useful indication of engine temperature. Also don't know how to proceed with the garage now. Feel I need to keep them on-side as there's not many BFGs round here, but it's easy to be fobbed off as I'm really no expert on the bongo cooling system!

Jaylee - no it wasn't near bath (i'm sure you can figure it out), though i've only heard praise for the guys I'm using, so don't want to slur them in any way. They obviously know more about this than I do, but what I'm hearing just doesn't add up.

[dobby]

I fitted a TM2 as well for peace of mind

[jaylee]

Jaylee - no it wasn't near bath (i'm sure you can figure it out), though i've only heard praise for the guys I'm using, so don't want to slur them in any way. They obviously know more about this than I do, but what I'm hearing just doesn't add up.

Fair play... I use a certain Garage near Bath & i can't knock em either... I would always recomend them!
But they do get freaked at my Mason too.. But they never expressed disconnecting it.. It's just something we agree to disagree on.

[Northern Bongolow]

What Ady said . I can't see a connection between Mason alarm and the fans not working. There are two sensors on the engine: one for the gauge (which the Mason alarm uses) and another one which tells the ECU when to switch the fan on.

the earth or voltage to/from the ecu via the clock cluster.

i ruined 3 different temp gauges on mine and 2 others on my mates bongo when i experienced troubles with masons, did pan tests with sensors and gauges in the house and they worked fine, even put voltage stabilizers on the circuit, put them in our bongo's and all sorts of weird things happened, they would underread or the next minute overread, .
i even went back to school for a masterclass from stilldesperate who used to make them for a living-----------still no joy.
the only thing i could come up with is the fact that by fitting a mason you are brideging the tracks on the rear of the clock cluster so the mason being so sensitive must be picking up either an earth fault or stray voltage from another clock cluster warning light circuit.
even had geoff and his charming wife round for tea, to no avail .

the answer was to stick an 100ohm resister across the same terminals as per haydns web site, this makes the gauge AS responsive as the mason but without the alarm feature, you can make your gauge read whatever you want to (good if your selling a dodgey motor) .

lumpy cold starting is usually glow plugs or the coldstart solenoids, or the fan switch, check the grey coloured end of the switch, remove carefully the plug/wires and gently rock the end of the switch body, if it wobbles /rocks its knackered.
the cold start solenoid problems are many, do a search on here (top right tab) jaylee has more or less nailed that topic