01 v70 xc Timing belt and cam seals replacement. big leak

xydki · Post by **xydki** » 22 Feb 2020, 05:48

oh, just one more. Blue Devil "Oil Stop Leak" greatly increases the engine's oil pressure. [i actually used smaller version of what i (only) assume is just the same 'formula', 'blue devil rear main sealer'.] Although i can see no harm in this, [and have had no problems], i think it may have gone up at least 25%! This is based on a 'sense' of what my oil gauge used to read, as it fluctuates around. But i never really took note of what it used to be...
From this experience, i surely recommend using 'high mileage' motor oils as a preventative to just this kind of a problem! Remember, the Blue Devil 'oil stop leak' stuff basically is this the same type of chemical [as 'high mileage oil], -only on mega-steroids! But the seal might well have been 'gently' expanded changing the oil with 'high mileage', and this never happened. Not sure, but seems cheap enough insurance!

xydki · Post by **xydki** » 25 Feb 2020, 03:08

Wow, did i say 'one more'? I forgot to mention that the 'cog' through which i was able to reach my 'popped out' seal wasn't a vvvt cog, as i do imagine both the cam cogs are in the car this thread was about. Whoops. I'm in the wrong forum! My car [2000 s70 glt se] actually has the vvvt cam for the exhaust, but my intake cam is the non-vvvt, thus the 'classic' cog model, with the big hole spaces. I believe that previous to about a 1998 s70/ v70/ c70 there were no vvvt's. I don't know if what i did would at all be possible with the vvvt timing belt pulley, or 'cog'. But since vvvt cogs have no holes in the pulleys, you can't reach through them with a stubby screwdriver to push the cam seal back in. As i said, had i had to 'do this right', i'd have probably junked the car, and if my rearward exhaust cam seal would have popped out, i would have had to, as i believe that you need a cam locking tool to deal with the vvvt cam pulley removal, [not dead sure on that]. So this little desperate fix will only be for non vvvt cam seals! I can't rule out some kind of hooking tool to 'work around' the vvvt pulley from the back. But no, I really don't think so...