Question about 1997 Volvo 850
Replaced the Exhaust manifold gaskits with brand new ones and trouque them down to what the book calls for and still have a leak
Posted by Anonymous on
We always have the manifolds surface ground at a machine shop when we do these. The manifold will warp form heat cycling and needs to be flat to seal. Take it to a machine shop and they will now what to do.
Posted on Apr 15, 2015
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Posted on Jan 02, 2017
SOURCE: 95 850 Coolanl leak
The turbo is cooled by engine coolant and possibly one of the cooling hoses have failed - it's pretty difficult to see back there so you'll need a mirror and a flashlight.
Posted on Oct 12, 2008
The Garrett turbo-charger is notorious for leaking oil into the intercooler, and, into the emissions system. This happens because the bearing wears in the turbine assembly, and dumps lubricating/cooling oil into the combustion and intercooler system. It also ruins all of the rubber hoses that come in contact with the oil.
A result of this, after thousands of miles of driving: Your catalytic converter is clogged. The backpressure from the clogged exhaust increases the manifold temperature to cherry hot!
When I had my Volvo service and sales business, I lost money on only one Volvo; a turbo-charged 1988 wagon! A friend of mine who made his living salvaging Volvos had similar experiences with turbo-charged 240's and 740's. I hate to break the news to you my friend, but you will need to spend lots of money on that vehicle.
Trust me, do not try to fix it as it's a black hole---$700-900 for the rebuilt turbo ($250 for the rebuild kit), $200-300 for the catalytic converter and on and on! When I bought that vehicle from the original owner, It had a stack of repair receipts an inch thick!
The only recommendation, if you must keep and drive the car: remove the turbo-charger, intercooler, and all attendant hoses. Replace the air assembly with one from a normally aspirated B230F, and keep the airmass you just installed. Replace the catalytic converter with a good used one if you can find it.
Posted on Mar 26, 2009
There are actually two gears that you need to replace, a large one and then smaller one that rides inside it. You can purchase them both at www.fcpgroton.com These can also sometimes affect the operation of your speedometer. Do you by chance have an ABS and TRACS light on? If so the speedometer issue may be related to your ABS controller.
Posted on Oct 20, 2009
Not to worry. Run the engine up to operating temp before jumping to conclusions and let the heat burn off any excess oil. A leaf will not do any damage.Do not let the engine overheat while idling and if the oil light comes on switch off immediately.
The smoke from the exhaust is oil deposited by oily assembly hands just burning off. It should dissipate after about 15 minutes at most.(or 5 miles' drive)
Posted on Jun 07, 2010
Testimonial: "yup kept running it and watching stopped smoking idle eventually smoothed out. only two problems left, bad o2 sensor (knew that before i started), and a high idle, ill worry about the high idle later. :)"
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