Tam and Toby ~~ Hunting Zorba .....Take two.

Do you think it’s this bit that does the park.
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when I’ve had my hymer one apart, the same as this, I’ve wondered what this bit does
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Manic said:
Do you think it’s this bit that does the park.
View attachment 484318
when I’ve had my hymer one apart, the same as this, I’ve wondered what this bit does
View attachment 484325
Click to expand...
Im not sure ....thats the bit the earth wire is going to ...first pic.

The second pic again im unsure ...going by the wires thats something to do with the speed selection but the new motor doesn't even have that bit in it
 
copied from MB forum

That sounds like the relay, the main purpose of the wiper relay is to bring the blades back to the park position at the bottom of the windscreen when the wipers are switched off.

If the wiper relay fails, the wipers will still operate normally on speeds 2 and 3 (normal and fast speeds)… BUT if you turn the wipers to position 1 ( intermittent) or position 0 (off) WHILE THE BLADES ARE IN MID SWEEP then the wiper blades will stop dead on the screen at the point at which you turned them off.

I think it is an intermittent fault with the relay OR the connections to the relay, probably a bad soldered joint in the relay and heat is triggering the fault.

With the ignition on and engine off, turn the wipers on to the intermittent setting and listen, you will hear the wiper relay click about every 5 seconds, this will help you locate it.
 
Al-Di said:
copied from MB forum

That sounds like the relay, the main purpose of the wiper relay is to bring the blades back to the park position at the bottom of the windscreen when the wipers are switched off.

If the wiper relay fails, the wipers will still operate normally on speeds 2 and 3 (normal and fast speeds)… BUT if you turn the wipers to position 1 ( intermittent) or position 0 (off) WHILE THE BLADES ARE IN MID SWEEP then the wiper blades will stop dead on the screen at the point at which you turned them off.

I think it is an intermittent fault with the relay OR the connections to the relay, probably a bad soldered joint in the relay and heat is triggering the fault.

With the ignition on and engine off, turn the wipers on to the intermittent setting and listen, you will hear the wiper relay click about every 5 seconds, this will help you locate it.
Click to expand...
There is no relay on these apparently. But from auto spark he said if relay knackered they dont work at all.
 
Northernraider said:
Im not sure ....thats the bit the earth wire is going to ...first pic.

The second pic again im unsure ...going by the wires thats something to do with the speed selection but the new motor doesn't even have that bit in it
Click to expand...
So is that how the park works, by earthing out the power.
Just guessing

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Manic said:
So is that how the park works, by earthing out the power.
Just guessing
Click to expand...
I honestly dont know

What im thinking i might do tomorrow is cut the wires and fit spade connectors to each one so they can be connected and disconnected ....then leaving the ones for speed one and speed 2 connected see if i can get them to work and stop immediately when i turn off switch. If i can get them to do that then it would pass an mot as you can manually park them. Its the stopping mid screen that would fail as it blocks drivers view .

Not ideal and it would need looked at again in future but it would let me get the mot done at present and not do any permanent damage
 
can you disconnect the intermittent part temporarily & does it work the washers at same time,

yes that my thinking aswell,
 
Al-Di said:
can you disconnect the intermittent part temporarily & does it work the washers at same time,

yes that my thinking aswell,
Click to expand...
Im going to try doing something like this tomorrow ...it does a wash sweep setting but again it doesn't park ...no intermittent working at the minute.

But i believe to pass mot as long as they wash and clear screen and can be switched off at bottom of screen manually its a pass. But if they stop in drivers vision etc or dont clear screen its a fail.

Id like them working properly eventually but right now i just want it MOT'd so i can get other stuff done.

Hopefully i can disable the park function by disconnecting that permanent live wire.
 
Looks like one motor has got the right hand contact connected to ground and the other one hasn't unless it is on the other side of the plate.

Have you followed the wires from the connector to the motor on each motor to make sure they are not swapped for another application. Best to ignore colours, may have the same colour going to the same pin but not the same place in the motor.

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Lenny HB said:
Looks like one motor has got the right hand contact connected to ground and the other one hasn't unless it is on the other side of the plate.

Have you followed the wires from the connector to the motor on each motor to make sure they are not swapped for another application. Best to ignore colours, may have the same colour going to the same pin but not the same place in the motor.
Click to expand...
Yep the original is earthed outside instead of in but all wires going the same place on both motors. But the new motor doesn't work ...just blows fuse almost immediately 10 fuses now.... original motor works fine on speed 1 and 2 just no parking and no intermittent. The new motor looks really cheap built.
 
Think the new motor is nacked.
Think this explains the wiring

As I understand it is that small segment that's the park signal. Should be a switch inside the motor housing which activates when the earth reaches that segment. So that wire which you cant figure is connected to that switch? Inside the motor itself(maybe)
This seems to narrow it down a bit but again might be commenting through my nether region.
 
They go for a few Bob... keep at it Tam, do a good job and it’ll be worth every penny. A good investment..

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Well after messing around with it some more today cutting the wires and putting in connectors ..then connecting the speed 2 cable to the constant drive i can now switch them on and off with the stalk so can just time it right to park them at bottom of the screen. Im pretty sure then as long as it clears the screen and is not in drivers vision its enough to pass the mot.

I phoned the garage to confirm this but he was supposed to phone me back after asking the tester and he never did ... surprise surprise ...when do businesses ever bloody phone back

So anyway ive put all the bus back together now and ill phone in morning and book it in for the test when i can.

Ill get the wipers looked at with an auto spark at somepoint later as i want them working properly but at the minute i just want to get it through an mot before i start removing the floor ,bodykit and the rear boot etc

Also took it out for a quick drive around the block ...not the most refined drive ive had lol
 
Why is the worm drive on one unit operating in the opposite sense to the other one? Could you be trying to drive it backwards?

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Last edited:
G-RMPS said:
Why is the worm drive on one unit operating in the opposite sense to the other one? Could you be trying to drive it backwards?
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Eh? ...to be honest i never noticed that ...not sure what the problem with the new motor is but ive given up on that one as it just wastes my fuses.

Attempting to return that one
 
It will probably drive/feel better when it’s got interior in.
 
Manic said:
It will probably drive/feel better when it’s got interior in.
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Yeah its a big empty shell at the minute and full of my tool boxes etc ...it willbe better with sound deadening , insulation etc in it ...it does wallow about a bit though ...reminds me of brewery daves merc based carthago and i thought that drove like a pound of mince on a skateboard compared to the fiat frankia.

Lot of side to side rocking etc

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Northernraider said:
Yeah its a big empty shell at the minute and full of my tool boxes etc ...it willbe better with sound deadening , insulation etc in it ...it does wallow about a bit though ...reminds me of brewery daves merc based carthago and i thought that drove like a pound of mince on a skateboard compared to the fiat frankia.

Lot of side to side rocking etc
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I thought it had full air or is just the brakes that are air?
 
Lenny HB said:
I thought it had full air or is just the brakes that are air?
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Just the brakes that's air assisted. Suspension is big leaf springs front and rear , 2.5 tonne front , 5.2 tonne rear ...and off course tyres will be set for loaded and at present it weighs about 3 tonne
 
Northernraider said:
Eh? ...to be honest i never noticed that ...not sure what the problem with the new motor is but ive given up on that one as it just wastes my fuses.

Attempting to return that one
Click to expand...
Maybe nonsense, but if the worm drive is trying to rotate in the opposite direction that might be why it's blowing fuses. Maybe if you reverse the wiring it might work?

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G-RMPS said:
Maybe nonsense, but if the worm drive is trying to rotate in the opposite direction that might be why it's blowing fuses. Maybe if you reverse the wiring it might work?
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Its supposed to be a direct replacement plug and play part though.
 
Just smiffy said:
They go for a few Bob... keep at it Tam, do a good job and it’ll be worth every penny. A good investment..

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Click to expand...
Drove one of those once.Once was enough.So noisy and underpowered..BUSBY.😆
 
Northernraider said:
I honestly dont know

What im thinking i might do tomorrow is cut the wires and fit spade connectors to each one so they can be connected and disconnected ....then leaving the ones for speed one and speed 2 connected see if i can get them to work and stop immediately when i turn off switch. If i can get them to do that then it would pass an mot as you can manually park them. Its the stopping mid screen that would fail as it blocks drivers view .

Not ideal and it would need looked at again in future but it would let me get the mot done at present and not do any permanent damage
Click to expand...
Gordon Bennet ! This is just to get the bloody windscreen wipers working ! Could be a long thread !
Meanwhile big catch in Peloponnese today...looks like a Tuna but could be wrong...

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My thoughts: if it has an intermittent setting there is a relay. Intermittent works by triggering the motor via a timer then relying on the park switch to stop it. Both parts of that operation require a relay. Your original motor appears to be in perfect condition and you can't hear a relay - possibly because the relay isn't operating thus causing the fault. The fact that it does park but not necessarily where you want it to suggests a failing relay.
 
tonyidle said:
My thoughts: if it has an intermittent setting there is a relay. Intermittent works by triggering the motor via a timer then relying on the park switch to stop it. Both parts of that operation require a relay. Your original motor appears to be in perfect condition and you can't hear a relay - possibly because the relay isn't operating thus causing the fault. The fact that it does park but not necessarily where you want it to suggests a failing relay.
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Yes im inclined to agree with you which is why my first thought when i discovered the fault was a relay ...but i cant find it ...and google ,youtube , merc forums etc seem to think there isnt one. So im confused. There are some 10 relays on the van but no wiring diagram or books to tell me what they are for.

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