Changed water Pump and now fan doesnt kick in??

[clipperjay]

I'm 100% sure its air trapped in the heater matrix. Try taking it out on longer runs or run it till its about to boil then screw the cap back tight let it cool down then repeat.
Could be faulty thermostat

[Goops]

I will try letting the car run again with full massage on the pipes tommorow morning!

Hope it is just an air lock...the thermostat was new from gsf bought it a month ago?

I have left the car with cap open tonight..

Hope tommorow is a better day  despondent and down today!

thanks,

G

[Goops]

hey Guys,

Tried all the massage etc the fan did not kick in...
Now comes the strange bit-

When we took out the waterpump yesterday, there was NO THERMOSTAT in there?
It was just the base of the thermo sealed onto the pump...

and When we put a new thermostat in, the fan did not kick in....

Today, we took the thermostat out put the old seal back (no thermo) and the fan kicked in at 100 degrees!??!?

My questions are:
1) What the hell is going on..how does the fan kick in without the thermo etc?
2) Why did the previous owner cut the thermo out of the water pump
3) What is the actual problem with the car?
3)is this a serious issue with the car (engine, head gasket etc)

Please let me know your thoughts...
what started off as a coolant loss is escalating into something entirely diff?!

Thanks,
G

[clipperjay]

Boil some water over the stove and place the thermostat into it and see if it opens up!
The fact its from GSF and new means nothing I'm afraid.
J

[Goops]

Elo elo,

I did what you said, tried the thermostat in boiling water..
there was a very small (like 1 milimeter) in size difference when i measured it after boiling.

Im sure there supposed to be a bigger change in length?

I will try get another thermostat and get this in, but 2 things that are really bugging me:

1) Why did the prev owner take the thermostat out completely?
2) How does the fan work without it? (kicks in at around 100)

Also i have inserted the pics of what was under the water pump (looks like the thermo has intentionally been cut off)
see below:



in comparison to the whole thing below?


all help much appreciated?

Thanks,
G

[clipperjay]

One mill is not working get it back and replace they sometimes sit for so long that the parts sieze up.
The reason why the fan kicks in is the pressure without the thermostat forces better water flow into the fan switch, so comes back to have pockets of air again and sometimes all it takes is restarting again with a new thermostat and repeat the massaging of the pipes. You will find the over heating will stop and your fan will kick in less. But like I said mine was a cascade pump, thermostat, leakie pipe, air pockets and then finally the fan bearings died.   

[Goops]

Cheers mate,

I wil get a new thermostat in this weekend and hit with an update.

What i find very strange is the previous owner had intentionally cutt off the thermo and sealed up the pump.
if he had gone to the trouble of opening up the whole waterpump unit, why wouldnt he just put a new thermo in!?

Could there be an explanation for this?

Thanks for all your help on this by the way!

G

[Goops]

Update:

Got a new thermostat with plastic housing from VW retailer..
Got these in with a new rad switch......

The fan kicked in at halfway on water temp gauge!



Now everything seems fine mechanically! Plus engine temp  warms up nice so come winter i should have a nice snug journey im hoping!

To conclude...
GSF THERMOS ARE CACK!!! buy the prope VW ones 

Next step is getting some sweet alloys/wheels, im thinking of keeping them 15" prob borbet As or Ronal Ls??
Any recommendations anyone?

Not sure if 16s are the way to go, would i need body work due to scrubbing etc?? (car has not been lowered)

All comments appreciated!
Thanks,
G

[monkeyalan]

glad it's sorted.

GSF are sh!te.    i bought an expansion tank and the cap wouldn't even screw on. 

[Goops]

Yup finally i can drive in confidence!

Yeah couldnt agree more, they are bunch of baffooons!

Honestly, i wanted to replace the alternator adjustor, they asked for my car registration and all.....gave me the wrong one in the end!

Having said that i might need to go back there 
Does anyone know where i can get the powersteering belt plastic cover? (the one that covers the belt to avoid contact with water)??

Thanks,
G