Author Topic: 16V Overheating  (Read 3619 times)

Offline simoncox

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16V Overheating
« on: 21 February 2004, 10:36 »
I recently changed one of the water pipes coming off the pump and now it seems to be overheating very easily.  I've tried bleeding the system by loosening a jubilee clip on one the pipes leading through the bulkhead at the top and a small amount of air came out.  However, it still overheats after about 10 minutes of driving.  The temperature guage goes up to about 3/4 and the fan does come on, but goes off before the temperature goes down again!

It also seems to be losing water, but I'm pretty sure its only coming from the overflow of the resevoir.

To make matters worse, odd noises seemed to start when I lift my foot off the clutch, even in neutral.  This has been happening for ages and a mechanic told me it was the thrust bearings (I think) and it was nothing to worry about.  However, after getting these overheating problems the noise is getting MUCH louder.

Is it gonna be damaging the car if I keep driving it?  I'm really out of ideas.

Thanks,
Simon Cox
« Last Edit: 21 February 2004, 10:39 by simoncox »

golfvr6

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Re:16V Overheating
« Reply #1 on: 21 February 2004, 13:19 »
Try changing the thermostat and the expansion tank cap.

Offline bishthefish

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Re:16V Overheating
« Reply #2 on: 22 February 2004, 00:16 »
Thrust bearing noise is the bearing wearing, mine stops grinding when i dip the clutch and take the slack up on the clutch plate... time for a new clutch before you damage the flywheel or box  ;) a lot of garages dont change the bearings when they do a clutch change !!
bishthefish@btinternet.com  VARIOUS NEW AND USED MK3 BITS USUALLY AVAILBLE

golfvr6

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Re:16V Overheating
« Reply #3 on: 22 February 2004, 00:19 »
Don't they?
depends where the bearing is.
can change it with box in car on some.

Offline simoncox

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Re:16V Overheating
« Reply #4 on: 22 February 2004, 02:41 »
I really don't want to get a new clutch, it was only replaced a few thousands miles ago ... along with the rest of the engine after the old one's oil pump died.  I haven't had much luck, but I still love it!

golfvr6

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Re:16V Overheating
« Reply #5 on: 22 February 2004, 10:04 »
You won't need a new clutch to get the bearing done on the 16v, the release bearing is in the end of the gearbox so it can be replaced with the gearbox still in the car, so shouldn't be big money.

Offline simoncox

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Re:16V Overheating
« Reply #6 on: 23 February 2004, 12:41 »
Right, I started trying to changing to the themostat today ... bloody nightmare.  VW in their wisdom thought it would be a good idea to put the power steering pump bracket right under the bottom of the water pump.  I tried to take off the bracket, but after undoing all the bolts that seemed to be holding it in place it wouldn't budge.  

Failing something obvious that I'm missing, does anyone know a good garage in Southampton that won't charge too much?

golfvr6

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Re:16V Overheating
« Reply #7 on: 23 February 2004, 15:49 »
I'm in Woking, surrey, if you don't mind travelling.

Offline simoncox

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Re:16V Overheating
« Reply #8 on: 23 February 2004, 19:52 »
Thanks for the offer, but it would take ages getting up there having to wait for it to cool down all the time.  I'm gonna try and get a garage down here to change it over.  Do you know roughly how long it takes, in case they try to fleece me?

Offline Gambit

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Re:16V Overheating
« Reply #9 on: 24 February 2004, 09:29 »
i got charged ?40 for fitting a new thermostat in my 16v