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raised dipstick = more power?

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
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azureblue
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raised dipstick = more power?

Post by azureblue »

Yeah, weird.. I accidentally drove my car with the dipstick not pushed all the way in, and it has more power. Well, the boost came on quicker, definitely livelier. I haven't a clue if this is normal or a symptom of a problem, but there it is.. Comments?

BTW, I drove an 800 mile Round trip with the new planar front 02 sensor, and got 25mpg on a car with about 230,000 miles.. Not bad...
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polskamafia mjl
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Post by polskamafia mjl »

Did you have oil spray everywhere? More power and oil everywhere would make me think you'r PCV is so clogged that the engine has a lot of pressure its fighting.
'All my money is gone and I have an old Volvo.' - Bamse's Turbo Underpants

Current: 1995 Volvo 850 T-5R Manual - Bringing it back from the brink of death
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bmdubya1198
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Post by bmdubya1198 »

polskamafia mjl wrote:Did you have oil spray everywhere? More power and oil everywhere would make me think you'r PCV is so clogged that the engine has a lot of pressure its fighting.
Yeah, I think you're right.
Check your PCV, I bet it's clogged!
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azureblue
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Post by azureblue »

Probably it - I had too much CC pressure and thought it was the PTC (?) valve in the intake manifold by the turbo. I cleaned it and the oil loss through the rear main seal went down. But there's not much oil spray at all.. I'll check for pressure in a couple of days...
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cn90
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Post by cn90 »

Raised dipstick = More Power = Clogged PCV.
No question about it.
Search forum for PCV overhaul, a lot of threads on it.
2004 V70 2.5T 100K+
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azureblue
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Post by azureblue »

I figured I'd have to do it. The system was redone about 6 years ago by a shop, so I will assume the can can be cleaned out and reused. I'm also going to do the bigger hose mod, too. Thanks for the input..
On the other topic, I think upgrading to a planar O2 sensor is worth it. I posted about it a month or so ago, but the splicing kit- with the official Bosch splicing block, comes with a sensor that has plenty of cable to reach the connector, so putting new connector pins on the new cable is a better way of doing the job. But the connector block works fine - it's just fiddly to put together.
544
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144 wagon
240
740T Wagon
850R Wagon
2002 V70 Wagon
2014 S60 T5

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