Help! No oil pressure!
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10-13-2008, 12:45
Post: #21
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Help! No oil pressure!
Ryan I just ran mine this morning, had 60 psi Hope that helps Paul Potter Hesperia CA 87PT38 8V92 From: Thanks for the replies, folks. I pulled the coach forward about 30 feet Friday afternoon and the gauge began reading. I don't think it was a loose wire, maybe the oil just needed to warm up? I don't ever remember seeing 0psi on the gauge when cold, though, I'm sure it would have alarmed me in the past and I'd have asked here if it were supposed to be this way. Other 8V92 owners, what's your oil pressure gauge do upon a cold start? Other than showing 0psi for a few minutes after a cold start (repeated after starting on Saturday & Sunday mornings, too), everything seemed OK. Ran @ ~30psi on the freeway, high idled @ ~15psi. idle @ ~5psi. Engine sounds beautiful... but I'm going to have to dig into this, anyway, because it seems abnormal to me. Appreciate the replies. -Ryan '86 PT-40 8V92 On Sat, Oct 11, 2008 at 8:10 AM, Pete Masterson <"aeonix1%40mac.com"> wrote: > About the only thing you can do is to install a mechanical oil > pressure gauge on (or near) the engine. (I'd have to know a lot more > about an 8v92 to tell you exactly where to install it -- but a diesel > mechanic familiar with that engine could probably advise you.) > > My guess was that the oil was so cold that it didn't registers much > pressure -- but if/when you revved up, then some pressure should have > shown if the gauge was working. At idle, the 8v92 has a very low oil > pressure. > > Ground straps work loose all the time due to vibration and are often > a source of problems. Partial or intermittent contact can make it > difficult to run down loose straps. > > Pete Masterson > '95 Blue Bird Wanderlodge WBDA 42 > "aeonix1%40mac.com" > On the road near > > On Oct 10, 2008, at 6:03 PM, Ryan Wright wrote: > >> Hi Mike, >> >> Nope, no gauge in the engine compartment, unfortunately. >> >> Pete: It's cold-cold... I turned the engine pre-heat on about half an >> hour ago, so we'll see if that changes anything. She did start a bit >> hard due to the cold. Maybe that's just it, oil is too cold to >> register much pressure? I'll check the ground straps too. >> >> Without a working oil pressure gauge, is there any way to verify the >> oil pump is doing it's job? The engine sounded just fine when I had it >> running... >> >> -Ryan >> >> On Fri, Oct 10, 2008 at 2:39 PM, mbulriss <"mbulriss%40yahoo.com"> wrote: >>> Ryan, >>> >>> Do you have a oil pressure guage in the engine compartment by the >>> rear >>> starter switch? What does that one say? >> >> ------------ >> >> Yahoo! Groups Links >> >> >> > > |
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10-13-2008, 19:58
Post: #22
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Help! No oil pressure!
On my 6v, the oil pressure will be close to 60 after warmup but sometimes settles to 40. I don't know why the fluctuation- just a "bird', I guess.
Ernie Ekberg 83PT40 Weatherford, Texas |
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10-14-2008, 02:45
Post: #23
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Help! No oil pressure!
pickup screen, ;pump ;oil viscosity ;oil level . funny how everyone
blames faulty electronics then searches for a gauge and sender that will prove spec oil pressure. Its like asking everyone if your 401 is secure then setteling on belief in the experts who's answer you most want to hear. the 3208's have an inherent problem with the pickup tubes cracking then falling off. I have had that happen several times then again the trucks had over 300,000 and used off road. average Mechanical oil gauges are less acurate than the average electronic units. the better mechanical gauges are up in $300. Since ohms is a measure of resistance and resistance is not a factor of voltage, only complete connection of the power used to test the resistance is important. (some voltage and a good ground)?????????--- In WanderlodgeForum@yahoogroups.com, erniecarpet@... wrote: |
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10-16-2008, 09:17
Post: #24
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Help! No oil pressure!
Will do, thanks Greg.
-Ryan On Mon, Oct 13, 2008 at 10:03 AM, Gregory OConnor > Ryan, you may want to check ohms into the harness at idle from the > sensor and ohms out of the harness at idle at the dash to see that > they match. if not that may prove a wire issue and not a hard part. |
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