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Antifreeze leak V70-XC70 1998

posted by  KlausC on  Tue Jun 23 09:28 CST 2015
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last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

Remove the timing belt cover, you can run the engine without it. That way you can verify if the pump is leaking or some hose has a problem. Remember, the antifreeze pressure is highest on a hot engine.

Check the water pump seals. If the pump leaks and the Tbelt is relatively new, just push the hydraulic tensioner back and 'pin' it in place to get enough slack to remove the belt from the pump without removing the belt from the cams or elsewhere.

The pump is a terrible place to get proper tension on all of its bolts, but slow and steady works.

If it is time for a new belt, then replace the rollers also.

The 170psi on cyl #5 is marginal, something to keep an eye on. Bringing up the pressure with oil could mean that a ring is stuck or there is some other problem that is keeping oil from getting up there to do its job. B.B. is a believer in Marvel mystery oil, and, pouring a tablespoon in #5 and letting it set overnight has been known to unstick rings and get some of the crud out of the piston crown.
--
My back feels better when I sit in a Volvo seat






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