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Serious front of engine oil leak '04 XC70

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regent
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Re: Serious front of engine oil leak '04 XC70

Post by regent » Wed Apr 18, 2018 7:24 am

Good to know; thanks :D
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Re: Serious front of engine oil leak '04 XC70

Post by BlackBart » Sat Aug 25, 2018 8:29 pm

This repair more or less continues here:

viewtopic.php?f=9&t=85853
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xydki
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Re: Serious front of engine oil leak '04 XC70

Post by xydki » Wed Mar 11, 2020 7:12 am

Leaving this cob fix for who needs it. If you have sprockets like seen above with ipd cam lock tool photo, not vvvt cam sprockets, it is possible to use a stubby screwdriver to simply push the cam seal backwards into place, [thru the sprocket holes]. My car has vvvt for exhaust, but the non vvvt for an intake, and the intake 'popped' out. I pushed the seal back in, using a careful 12 o'clock, 6 o'clock; 3 o'clock, 9 o'clock method, until it seemed to resist pushing and was evenly seated. Then i painted 'blue devil oil stop leak' on the seal with a [broken off] stubby paint brush, [Not in directions!], and left it overnight. The next day i added the same b.d. stop leak to the engine as directed, started it and idled it for two hours. I drove gingerly for a week, less so for another. Now i drive normally, and get on it here and there.
Blue devil expands 'dried out' gaskets and seals, 'rejuvenating' them. Other brands make similar stuff, but b.d. gets best reviews. I don't seem to have pcv problem, [glove test], just driving real hard on a 260k engine to blow cam seal. Good argument for using 'high mileage' motor oil as a preventative for this same and others, it has like same additives, but i think in much smaller quantity than this blue devil stuff. [I actually used 'blue devil rear main sealer', a smaller bottle of (i believe) same thing.] My car not worth the work described here. Thanks blue devil!

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Re: Serious front of engine oil leak '04 XC70

Post by abscate » Wed Mar 11, 2020 2:14 pm

If the leak is on the non-VVT hub it isnt bad labor to remove that and replace the seal with a good new one.

You have to get the crankcase pressure down, though, or else the new seal will cause another seal to pop - usually the expensive rear main seal.

I think any decent running car is worth 4 hours of labor and a $10 seal.
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Re: Serious front of engine oil leak '04 XC70

Post by xydki » Fri Mar 13, 2020 11:53 am

okay. So i'm just dirt poor and generally lazy. [and a genius.] This car was a gift and i've got 5 yrs out of it. I can buy many like it cheap on c-list. I shared this for another who faces a 'make or break' decision. Btw, this all happened 3 months ago, and i do punch ii some here and there! So this is a real repair! At least so far...
I thought that this was the pcv too, but both the 'dipstick and the 'glove' test have since passed... I may still try a pressure tester, -if that's possible, -when i get a chance. I'd have been working outside in the cold, and you need a cam-locker. I take a day to change the front wheel bearing. Challenged! I will try to post if this 'do nothing' repair ever fails, guys.

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