Help! No oil pressure!

[Leroy Eckert]

Mine will cold start in 20 degree weather with a light puff of white smoke. In summer no white smoke at all. In the cold start the gauge reads within 5 seconds. Oil psi on the freeway at 1800 rpm= 65psi. High idle around 40 psi., hot idle 10-15psi. Hot idle defined as oil temp around 220. I had a faulty oil pressure sender 2 years ago giving goofy readings and it quit on the road. Changed it out and all has been fine since. The first new one was just as bad as the old one. The second new on is still on the bus. Just back from 5 days in the mountains. Cool and nice. Sat antenna will not lock on to Sat 110. No football this weekend. Texas kicked butt. Love it. Go Gators. Leroy Eckert 1990 WB-40 Smoke N Mirrors Dahlonega, GA --- On Sun, 10/12/08, Ryan Wright wrote: From: Ryan Wright Subject: Re: [WanderlodgeForum] Re: Help! No oil pressure! To: WanderlodgeForum@yahoogroups.com Date: Sunday, October 12, 2008, 8:31 PM 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 Lancaster, PA > > 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 >> >> >> > >