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oil press after oil change
Are there any techniques out there to decrease the amount of time it takes for full oil pressure to build up the first time the car is started after an oil change? I used to fill the spin-on filter up with oil when I changed it in my previous car.
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'02 BMW 325i '85 300D 450k '93 190E 2.6 170k(killed by tree) '08 Ducati Hypermotard 1100S 6k '06 Ducati S2R800 14k(sold) |
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Oil pressure trick
I had a trick that my independent mechanic in Denver showed me and that I used to use on my 420SEL. Dunno if it'll work for you on a diesel, but --
I used to disconnect the coil-to-distributor wire at one end and put it aside. Then I cranked the engine, watching the oil pressure gauge. When the needle came up over, say, 1 - 1.2, I'd switch off, hop out, connect the wire, then hop back in and start it up.
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* * -- Paul W. (The Benzadmiral) ('03 Buick Park Avenue, charcoal/cream) Formerly: '97 C230, smoke silver/parchment; '86 420SEL, anthracite/light grey; '84 280CE (W123), dark blue/palomino |
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What's a distributor? :p
Kevin
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'85 300SD |
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Quote:
That is a distributor. |
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Crack the injector lines and crank until the pressure comes up.
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
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Easier and less messy, pull the vacuum line to the shutoff device and put some suction on it with your MityVac. Or have a helper hold down the stop lever while you crank. Or look up whunter's post showing plans for a pre-oiler.
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Rick Miley 2014 Tesla Model S 2018 Tesla Model 3 2017 Nissan LEAF Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro Chain Elongation References |
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If you HAVE great compression you can.
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When I'm adding the oil, I add 2-3 quarts through the oil filter housing with the new oil filter in place. Takes a minutes or so but I THINK I notice a difference in how quickly pressure comes up.
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Fred Johnson 1977 240D 1983 300SD |
#10
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By starting-up the car as usual after an oil change. NO HARM is going to occur to your engine. There is still a fair amount of the previous oil left on the cylinder walls, and all other critical components. This oil will still provide adequate lubrication during the first few seconds of what you THINK is a dry start-up.
The previous post, by Fred, suggesting adding some of the oil through the oil filter housing is good, and if its going to make you feel any better, than go ahead and do it, but that's probably as far as you should go. I would not crack any injector lines open. That's ASKING for trouble. It won't be long before your injector lines start leaking, even if you tighten them back correctly with a Torque wrench. Its just not worth it, it really isn't. Phil
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'95 E300 Diesel, 264,000 Miles. [Sold it] Last edited by pberku; 10-22-2004 at 11:28 PM. |
#11
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Just don't change it problem solved!
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
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