Coolant overflowing

[buscuits 0]

Hey everyone,

I've got a few problems with my 93 obd1 VR6, can someone please help.

I've had it a couple of weeks now, and its been sitting on the driverway, waiting while I sell my GTi.

It's taking for what seems forever to heat up!! After about 10 mins at Idle the oil temp is at 68 and the coolant temp gauge on the dash, has barely even moved. Its at this point the reservoir tank starts to overflow. Also if I turn the engine off, then restart, the coolant temp doesn't move back to where it was before I turned it off. Not straight away anyway.

Feeling the coolant pipes, the top rad hose is very hot but the bottom rad hose is only warm.

Its also idling at about 600 rpm after about 5 mins of running.

I have searched on here for a possible solution, and to my horror found this could be a head gasket failure.

Theirs no oil in water, or vice versa that I can see.

I've also changed the reservoir tank cap for a blue one which I got from the scrapie. When the coolant started to overflow, I turned the engine off and unscrewed the reservoir tank cap and there was no pressure change, it just unscrewed with no effort.

Can someone please please help

[mannie 0]

I would start with the thermostat,take it out and test it,it may be faulty.

[Ben Seabrook 4]

left at idle the heating up sounds about normal mate !!

the hose temp are right iirc - as above I would check the thermostat.

[buscuits 0]

Thanks for the replies.

I changed the reservoir cap for the one on my GTi, and it stopped overflowing. But the engine oil got to 82 degrees, the fans kicked in and the coolant light came on. The coolant temp gauge didn't move past about 60 degrees though.

Any ideas why that might be?

Have ordered some bits from VW, will be fitting tomorrow.

Hopefully it'll sort the prob!!!

Thanks again

[supadupagt4 0]

Did you change the thermostat yet mate??

tony.

[buscuits 0]

Sorry I forgot to update the thread.

Well, I did indeed change the thermostat, and also the Housing, temp sensor, new reservoir cap and flushed the system through with quick flush.

And there was no change!!! boo hoo

The temp gauge was bothering me because it was only going up to 60 degrees, which isn't exactly overheating. Also the oil temp being at around 80 isn't overheating either.

So I swapped the clocks from my GTi, as I knew these were working fine, and it run fine!!!

Fired up, coolant got up to temp, oil got up to temp and the fans kicked in when they should.

Job done!!

There was another thing I noticed, the car was idling at around 600rpm with the old clocks but with the GTi ones it was idling at just over 1000rpm bit strange

[supadupagt4 0]

The difference in the revs is because the gti is a 4 cylinder and the vr6 a...6..

My vr's temp dosen't go over 60-70deg normal driving.. when sitting in traffic it goes up to around halfway on the dial.. then drivin it drops all the way again.. my oil stays around 92 degrees.

tony.

[buscuits 0]

Ah I see, cheers for the info fella, Much appreciated.

So I'm guessing the clocks from a 16v wont be any good?

[supadupagt4 0]

They'll work fine, just the revs will be different.. i have 2 VR6 cars.. both cabby's. 1 has 'normal' clocks in and the other has 1.8 gl clocks in.. both work fine and produce the same mileage..but read different rev values. All's good.

tony.

[buscuits 0]

Ok cool, was just wondering as I bought some 16v clocks for it!!

Will get some proper ones at a later date

Cheers fella

[supadupagt4 0]

No probs. ;-)