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 Posted: Sun Jan 02, 2011 5:02 am |
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Joined: Feb 11, 2010
Posts: 31
Trade Rating: 0
Location: Reading
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Hi All
I have sprung a small leak as seen in the image below on my '99 gti 138. The pipe its coming from is at the back below the thermostat. Its a pig to get access to it but do you guys have any tips to fix this?
Can has not overheated to a point when it goes into the read or even above 100 degress so hopefully i found the issue before any real damage. If i fill up the coolant and run the car for 30mins it sits there around 90, but eventually the coolant does come out..
thanks
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Posted: Sun Jan 02, 2011 5:07 am |
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Joined: Feb 07, 2010
Posts: 2248
Trade Rating: +18
Location: Leicester
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As the coolent system is pressurised the only fix is a new hose mate. Find someone breaking a gti would be the easiest way.
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Posted: Sun Jan 02, 2011 5:08 am |
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Joined: Feb 07, 2010
Posts: 5575
Trade Rating: +33
Location: Moscow
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I can only think of patching it up with some rubber bonding agent. However by the time you have faffed around would probs be easier going down to the local scrappy and just replacing the pipe. 
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Posted: Sun Jan 02, 2011 5:09 am |
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Joined: Feb 07, 2010
Posts: 703
Trade Rating: 0
Location: Evesham, Worcestershire
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Puncture repair patch and a jubilee clip would fix it in the short term.
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Posted: Sun Jan 02, 2011 5:11 am |
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Joined: Feb 11, 2010
Posts: 31
Trade Rating: 0
Location: Reading
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if it was a rubber hose i would have changed it all ready but this thing is metal and drops down behind the engine and would be a pig to replace..
thanks for the sugegstions...
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Posted: Sun Jan 02, 2011 5:13 am |
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Joined: Feb 07, 2010
Posts: 5575
Trade Rating: +33
Location: Moscow
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Really? Looks like is coming from the bottom rubber hose underneath.
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Posted: Sun Jan 02, 2011 5:19 am |
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Joined: Nov 28, 2010
Posts: 322
Trade Rating: 0
Location: south wales
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dont forget that if the water system is not under pressure you can risk boiling over as water boils at 100 degress but while under pressure i think it boils at around 126 degress.
new pipe to be safe mate.
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| Mark
03 206 1.4 hdi 3 door 187k
02 transit 100 280 196k
04 renault Laguna 80k
09 transit 115 300 43k. | |
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Posted: Sun Jan 02, 2011 5:27 am |
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Joined: Feb 11, 2010
Posts: 31
Trade Rating: 0
Location: Reading
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aye the bottom pipe is metal.. the other two connecting to it are rubber..
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Posted: Sun Jan 02, 2011 5:33 am |
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Joined: Apr 16, 2010
Posts: 1152
Trade Rating: +1
Location: in the house
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| nethany wrote: |
| aye the bottom pipe is metal.. the other two connecting to it are rubber.. |
thats correct its a steel pipe and its most probly rotted away abit.
a temp repair you could do is "sleave it" by that i mean put a rubber pipe over the hole and 2 clips over the pipe like a sleave it would hold for some time if done right
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Posted: Sun Jan 02, 2011 5:48 am |
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Joined: Feb 11, 2010
Posts: 31
Trade Rating: 0
Location: Reading
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many thanks again for your help guys...
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Posted: Sun Jan 02, 2011 6:32 am |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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It's the pipe where it joins the thermostat housing. I doubt the pipe has cracked but you never know...I'd just get three new seals and a thermostat housing seal as I think it needs removing from the head to pull the pipe out of the back of the water pump.
The 2x rubber ring seals fit on the end of the pipe where it sits in the thermostat housing. It's a tight fit and best to lubricate the seals when slotting them back into the thermostat housing.
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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Posted: Sun Jan 02, 2011 8:16 am |
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Joined: Feb 11, 2010
Posts: 31
Trade Rating: 0
Location: Reading
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Hi Edward, thanks for the post. I have taken out the batter to get clearer access and it does seem to be coming from the seals into the thermostat housing. Any idea of the correct procedure to remove the pipe?
appreciate all your assitance and everyone else who haved helped this morning..
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Posted: Sun Jan 02, 2011 10:16 am |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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Best way to do it is remove the thermostat housing and pull that to the side while also pulling the metal pipe out of the water pump housing (lots of coolant will spill out), also unclip any wiring that's attached to the coolant pipe.
The two seals hold the pipe in the thermostat housing quite tightly so once you've also removed the metal clamp at the back, spray some WD40 into the seals to help loosen them.
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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Posted: Sun Jan 02, 2011 10:26 am |
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Joined: Jan 23, 2010
Posts: 899
Trade Rating: +2
Location: Leeds
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You may as well use the time to do a full coolant change if you haven't done one recently. It's all too common to overlook coolant changes, but they are needed every 20k or so, or every couple of years.
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Posted: Sun Jan 02, 2011 11:52 am |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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Doing that job you'd have no choice in changing the coolant.
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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