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Turbo shutdown procedure?[ALL/1998] posted by Doug Gerard on
Wednesday, 17 September 1997, at 4:48 p.m.
With the V70AWD (low pressure turbo), how important is it to idle for a minute or so prior to turning off the engine? I would think that after highway driving, steep hill climbs, towing, etc., then it may be more important, but what about driving a few miles? It is difficult to break old habits and I know my wife doesn't remember to idle. Is this really a significant issue?
Re: Turbo shutdown procedure?[ALL/1998] posted by gregg on
Wednesday, 17 September 1997, at 6:51 p.m.
Turbo 850's seem to be holding up well, I don't think any special
procedure is needed. Just keep up those oil changes!
Re: Turbo shutdown procedure?[ALL/1998] posted by Eric Acle on
Wednesday, 17 September 1997, at 7:00 p.m.
The length of the trip is not as important as how hard you drive the car. You could drive from one side of the U.S. to the other with a light foot and nothing would happen if you shut it down right when you got off the expressway. On the other hand, if you were to drive your car one mile with your foot to the floor the turbo would be very hot. Just don't turn off the car right away if the little turbo needle has always been on the high side. Idling your car is not vital if you have driven gently the last 5 minutes or so of the ride but it is always better.
Re: Turbo shutdown procedure?[ALL/1998] posted by Doug Gerard on
Wednesday, 17 September 1997, at 10:40 p.m.
No turbo needle in my car. I've heard the turbo fully in at 1800rpm, which is partly the reason for my original question. Your general comments were my exact thoughts too, thanks.
Re: Turbo shutdown procedure?[ALL/1998] posted by Ed Lipe on
Thursday, 18 September 1997, at 9:00 a.m.
Doug, Your turbo may be spinning with engine at 1800 rpm , but, it is not doing much of anything at that speed. An aftermarket guage with a range of 0-30 lbs can be used to determine how your turbo is performing. it doesn't need to be a permanent installation. Find a convienient spot to tap the manifold pressure and run the hose to the front seat. Drive and observe. A minute or two of easy driving after a hard run is sufficient for cool-down of turbo, but more importantly, the engine. Keep up with the oil changes.
Re: Turbo shutdown procedure?[ALL/1998] posted by Doug Gerard on
Thursday, 18 September 1997, at 9:50 a.m.
Oil change every 3,000 as I always have in the past on my other cars, or every 5,000 as Volvo suggest? The dealer is quite persistent that 5000 is ok.
Re: Turbo shutdown procedure?[ALL/1998] posted by Ed Lipe on
Thursday, 18 September 1997, at 2:24 p.m.
Based on my experience with GM products; Replace any exhaust component in 3 years= oil change every 3000 mi. Euro products are a helluva lot better than that, which is why we drive what we drive. If you can run at normal operating temps for 15-30 min on 75% of your run time then you can go to 5000mi oil changes. The quality of oil we've got these days is just fantastic. Though, better to err on the side of fanatical (if that's a word) As my WIFE says: When in doubt, Throw it out (as it pertains to food). As with any car, as described in my '67 BMW owners manual, after a period of high spirited driving, give the car a few minutes of normal driving to cool down a bit. Oil additives are yet another can of worms. Stay away from anything with teflon, just clogs the oil filter.
Re: Turbo shutdown procedure?[ALL/1998] posted by todd burke on
Friday, 19 September 1997, at 12:54 a.m.
with our '97 t5 wagon, my wife and i let it idle for 30 seconds at startup and shutdown times. also i decided to change the oil every 2500 miles. half of the volvo recomended mileage 5k, 10k, etc. makes the math easy.
Re: Turbo shutdown procedure?[ALL/1998] posted by Paul Elliott on
Tuesday, 23 September 1997, at 4:18 p.m.
Instead of changing every 2500 miles, you might want to try using a good synthetic like Mobil1 or Amsoil, and feel completely safe at the factory recommended 5000 miles. In addition, synthetic will alleviate any fears of shutting down the engine too soon, since its composition keeps it from 'coking' which is one of the biggest fears of shutting down a still spinning turbo. I've changed mine at 5000 miles with synthetic, and sent the oil sample out for analysis, and found that not only was everything well within spec, but that it could have probably gone at least another 5000 miles with no problem!
Re: Turbo shutdown procedure?[ALL/1998] posted by Keith Hyndes on
Thursday, 18 September 1997, at 5:09 p.m.
I can think of at least 3 reasons to idle down a turbo engine.
1. It allows the turbo to "cool off" (be not quite so stinking hot), when the engine is stopped.
The oil remaining in the turbo can break down at high temperature. Broken down oil can do very evil things to engines.
2. Prevent cracking. Once you shut down, the turbo will cool quickly and unevenly. Obviously the cooler it is the better.
3. Ensures that the turbo is not spinning quickly at the time of shutdown.
4. The 4th reason applies to all engines which benefit from the elimination of hot spots (exhaust valves etc.) during idle.
Why not get an auto electrician to fit an auto switch that keeps the engine running 30 seconds after you turn the key off.
Re: Turbo shutdown procedure?[ALL/1998] posted by MARK GONZALES on
Wednesday, 24 September 1997, at 12:59 p.m.
I didn't read the follow ups but my sorry butt couldn't wait to get out of my brick ,because my seat is worn down to the metal and it hurts my ass. So I would just shut of my car as soon as I could.NOW I HAVE NO TURBO I BURRIED IT IN THE BACK YARD NEXT TO THE DOG. WITH a $850 dollar turbo on the way my happy ass can suffer so the turbo and shutdown. Don't be stupid you can learn alot from a turbo. Mark Gonzales
Re: Turbo shutdown procedure?[ALL/1998] posted by Ed Lipe on
Wednesday, 24 September 1997, at 1:53 p.m.
Volvo is not the only place to buy a turbo. More than likely You have a turbo shop within 2 day shipping distance. Look in the Yellow Pages. All they need is the numbers off your turbo and more than likely they'll get you one for 1/2 the price plus core. Did you get a core charge?
Re: Turbo shutdown procedure?[ALL/1998] posted by Ed Lipe on
Wednesday, 24 September 1997, at 1:56 p.m.
$ 250 for a turbo is adequate.