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crankshaft seal leak

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Hello again 😞

I developed a leak which has been ongoing for few wks so it has got worse and brought to garage,I actually had 2 leaks,one at oil filter housing which is fixed now but noticing i still losing oil on ground i brought back to garage,leak is coming from crank shaft seal which he said the gearbox would have to be removed to replace the seal 😞 I know im looking for a miracle here but is there any cheaper option like a sealant or the leak stop solution?I'm guessing it would take a good few hrs labour to remove gearbox and replace the seal?anyone any ideas on time involved or rough price?I have the car near 3 yrs now and always serviced and looked after by me anyway,very disappointing as i've had a run of problems with it in last 6 wks 😞 has anyone had this problem before,is it common?Really appreciate any advice 😞 my heart is broken ha and my wallet.

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Fix the breather system fault that's causing the crankcase pressure to be high. 

What engine does you car have?

 

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5 minutes ago, Wino said:

Fix the breather system fault that's causing the crankcase pressure to be high. 

What engine does you car have?

 

sorry its 1.9 tdi,so the seal would not be gone from wear and tear you mean?have had no issues with temp or air flow ect,sorry i am not very good with mechanics of cars just basics.

 

Yep a bit of work and more if you have a DSG gearbox. Hard to price it. 4-6 hours work I guess.

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If the breather system is working properly, there should be no positive pressure in the crankcase to force oil past any seals.   Do some reading about crankcase ventilation systems (abbreviated to PCV generally), especially for your engine type, or wait for someone familiar with the arrangement to advise you on here.

To see if excessive crankcase pressure is the cause you could try zip-tying a small scotchbrite pad over the dipstick tube (dipstick removed) and see if the leak changes.

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33 minutes ago, MicMac said:

To see if excessive crankcase pressure is the cause you could try zip-tying a small scotchbrite pad over the dipstick tube (dipstick removed) and see if the leak changes.

I really havnt a clue but im curious how does that work?sorry lol 

With the engine running, if you pull the dipstick out you provide an escape route for crankcase pressure thereby relieving the strain on the crankshaft seal if it is physically serviceable.

 

If the seal is unserviceable this will not make much difference to the leak.

 

The scotchbrite pad is to allow gases to pass whilst stopping a spray of oil all over the engine bay, you will probably get a dribble down the dipstick tube but that's better than spraying everything.

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7 minutes ago, MicMac said:

With the engine running, if you pull the dipstick out you provide an escape route for crankcase pressure thereby relieving the strain on the crankshaft seal if it is physically serviceable.

 

If the seal is unserviceable this will not make much difference to the leak.

 

The scotchbrite pad is to allow gases to pass whilst stopping a spray of oil all over the engine bay, you will probably get a dribble down the dipstick tube but that's better than spraying everything.

Very good,tks :) 

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