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Burnt valve fixed/ Hydraulic vs. solid tappets V70-XC70 99

We received our '99 V70 T5M with 42K on the odometer back from the dealer recently. I had posted at the end of October on this forum that it lost compression in a cylinder while driving down the highway and we had to call Volvo-on-Call for a tow. After keeping the car for eleven days, doing 12.1 hours of labor, and replacing 59 parts including the two exhaust valves in cylinder number four, the dealer return the car to us. The car now runs like new again. The charge to Volvo NA was $1159 for labor and parts, plus eleven days of the V40 loaner, and the 30 mile tow on a flatbed. Thankfully, this was all covered under warranty.

I guess one good thing that came out of it was the car getting fresh oil, antifreeze and plugs as a part of the deal. I also paid them to change the brake fluid (which is so clear now, you can not even see it in the reservoir).

As a result of this experience, we are now only using name brand premium gas (Mobile/Exxon is the nearest name brand dealer and I have discovered they have a nice credit card with a 3% rebate on their gas and 1% on everything else) instead discount premium gas. Also I am trying to get my wife to rev the car to at least 4K before she shifts. An e-pal who works for Volvo in Sweden told me, "One reason to why we use solid tappets [switch back to them for the 2001 V70] is because you US people doesn't drive like we do here in Europe. We've had problems with engines in US that had severe misfire problems due to the driver.

Some cars had never been driven above 3000-3500rpm and that caused the hydraulic tappets to stop functioning due to poor oil circulation." He also said, "The old hydraulic tappets can't handle as much boost and revs like the new 󞪁] solid tappets."

Rodger

See the car at: http://www.geocities.com/MotorCity/Boulevard/4369/99V70PICS.html

Some 70 series stuff I have for sale:

Black Waste Paper Basket PN 9166348

USA Speedo PN 9451499







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